2019・2020

M

OGAMI cable products listed in this brochure are mostly comprised ofmajor products designed by ex-president of Mogami Wire & Cable Corp.,
Koichi Hirabayashi, as a result of his own inventions, compromises andrediscoveries of past great works done by many predecessors step by step for 50
years of his career while being tossed about with economic strife, who could achieve
deeper understanding of science and practical production technologies being affectedby many attractive and emotionally impressive scientists such as Richard P. Feynman
in a country called Japan where manufacturing industries have rapidly developed, depending
heavily on the huge and flourishing American market and technologies introduced afterWorld War II when the industrial world was greatly developed in so-called WesternCountries, being supported by rapidly developing technology in electronics andpetroleum chemical industries.
These products not found in standardized goods may certainly embody a side of thepresent condition of Japanese manufacturing industries, because there are now few
items from Japan which are still competitive in the world market after 2000.
Most of the products listed in this brochure are centered around the professional audio,
video and digital interface market such as recording studios, broadcast stations,theatres, halls etc. The basic design idea puts importance on sound quality for audio
applications and on economy for other applications. There are some items which areavailable only from MOGAMI, and a common design idea through the whole line lies in
the flexibility of the cable, considering handiness and efficiency for wiring andinstallation.
2018

CONTENTS
A PATCH CORDS

INTERCONNECTION CABLE ASSEMBLIES FOR AUDIO/VIDEO

1

QUAD MICROPHONE CABLES

7
9
11
13
15
17
19
20
21
22

1~6

B MICROPHONE CABLES

7~22

HIGH QUALITY BALANCED MIC. CABLESLOW COST HIGH PERFORMANCE MIC. CABLESLAVALIER MIC. CABLES（BALANCED）
UNBALANCED MIC. CABLESSTEREO MIC. CABLES / AERIAL MIC. CABLES
TUBE MIC. CABLE

5.1ch SURROUND MICROPHONE CABLE

3.5mm right angle Stereo mini plug cable

INTERCOM HEADSET EXTENSION CABLE

CABLESC SNAKE( MULTICORE MIC. CABLES )INTERNAL /D CONSOLE
EXTERNAL WIRING CABLES

E

23~26

STANDARD VERSION

CL2 RATED VERSION / STIFFER + HEAVY DUTY VERSION

23
25

INTERNAL / EXTERNAL WIRING CABLES

27

PURE SOUND COAX. CONFIGURATION SPEAKER CABLE

29
30

SUBMINIATURE & MINIATURE COAX. CABLES

33
35
36
37
39
43

27~28

SPEAKER CABLES
29~32

CABLES &F VIDEOHIGH FREQUENCY COAX. CABLES

33~44

CONVENTIONAL CONFIGURATION SPEAKER CABLES

75 COAX. PARALLEL MULTICORE CABLESVIDEO MONITOR CABLE

MULTICORE 75 COAXIAL CABLES

PUSH-PULL BNC CONNECTORS AND CABLE ASSEMBLIESVIDEO CAMERA CABLESGMIDI CABLES

DIGITAL INTERFACE CABLES
45~58

AES / EBU DIGITAL AUDIO CABLES AES/EBUANSI / EIA 232 INTERFACE CABLES ANSI/EIA232
RS-422 INTERFACE CABLEETHERNET CABLE

LAN CABLE FOR INSTALLATION APPLICATIONHOVERALL SHIELDED
MULTICORE CABLESIGUITAR CABLES

J

HI-FI AUDIO CABLESMECHATRO ( 0.08mm2 / #28AWG ) SERIES

59
60

GUITAR CABLES

61
62

HI-FI INTERCONNECTION CABLES

63
64
65

ULTRAFLEXIBLE MINIATURE CABLES

69

APPENDIX

75
98

259~60 0.15mm ( #26AWG ) SERIES

61~62 LOW CAPACITANCE GUITAR CABLEK ULTRAFLEXIBLEMINIATURE CABLES

45
47
51
55
57
58

63~68 HI-FI SPEAKER CABLES
HI-FI Hook-Up Wire / HI-FI Sub-Miniature Coaxial Cales

69~74

INDEX

BANTAM TT PATCH CORDSLONGFRAME PATCH CORDS

HIGH DEFINITION 75Ω AUDIOVIDEO PATCH CABLES AND
BALANCED 1/4" PLUG PATCH CORDS

1

PATCH CORDS
MOGAMI BANTAM AND LONGFRAME PATCH CORDS are the first high definition audio cables
specifically designed for recording studio engineers and broadcast professionals, and offer thefollowing outstanding features:■ Super-flexible Quad-Balanced NEGLEX OFC wiring and Overall Served (Spiral) Shield provide maximum definition,
detail and signal transparency in addition to giving excellent protection from electro-magnetic noise.

■ Both analog audio and digital audio patch cables are available.

■ Maintenance free with durable nickel plated tip / ring / sleeve connector preventing from tarnishing. Degradationof the sound quality caused by secular change becomes extremely low on account of it.

■ Compact refined mold design permits use in high density jack fields.

BANTAM PLUG : Overall Diameter 7.8mm ( 0.307" ) LONGFRAME PLUG : Overall Diameter 10.6mm (0.417" )■ Interchangeable color rings for easy patch cord identification.

■ Choice of five attractive colors for Bantam Patch Cord Only : Black・Red・Yellow・Green・Blue
Available standard color for longframe patch cord is Black only.

■ Adaptor cable of bantam plug or longframe plug to other connector available to special order.
■ Neglex OFC bulk cable also available in 50m (164Ft), 100m (328Ft) and 200m (656Ft) rolls :Analog cable : Part No.2893

Digital cable : Part No.3228

OTHER VARIATION OF AUDIO AND VIDEO PATCH CABLES

Supplemented to TT Patch Cables, many other variation of audio and video patch cables are available in standard
lengths. Available combination is RCA Plug, 2P and 3P 1/4" Phone Plug with original mold cover and one toucpush-pull BNC connector. Used unbalanced audio cable Part No. 2964 is designed to be 75Ω coaxial cable
comprised of OFC conductor so that it can be used for video signal as well as audio signal application with its low

capacitance value of 65pF/m (19.8pF/Ft). Stereo cable Part No. 2965 is basically dual version of 2964 so that it canbe also used for video signal.

2

PATCH CORDS
Bantam Patch CordLENGTH
AnalogPart No.

PJM-12

PJM-18

PJM-24

PJM-36

PJM-48

PJM-60

PJM-72

Length

12"
30cm

18"
45cm

24"
60cm

36"
90cm

48"
120cm

60"
150cm

72"
180cm

Part No.

PJD-12

PJD-18

PJD-24

PJD-36

PJD-48

PJD-60PJD-72

Length

12"
30cm

18"
45cm

24"
60cm

36"
90cm

48"
120cm

60"
150cm

72"
180cm

Cable : Part No. 2893 standard Color : Black ・ Red ・Yellow ・ Green・ Blue
Digital

Cable : Part No. 3228 standard Color : Black only

Longframe Patch CordLENGTHPart No.

LF-18

LF-24

LF-36

LF-48

LF-72

Length

18"
45cm

24"
60cm

36"
90cm

48"
120cm

72"
180cm

Cable : Part No. 2893

Standard Color : Black

Stereo RCA Phono Cables
LENGTHPart No.

WR-01

WR-03

WR-06

WR-10

WR-15

WR-20

Length

1 Ft
30cm

3 Ft
90cm

6 Ft
1.8m

10 Ft
3m

15 Ft
4.5m

20 Ft
6.1m

Cable : Part No. 2965

Color : Black only

RCA Plug to RCA PlugLENGTHPart No.

RR-01

RR-03

RR-06

RR-10

RR-15

RR-20

Length

1 Ft
30cm

3 Ft
90cm

6 Ft
1.8m

10 Ft
3m

15 Ft
4.5m

20 Ft
6.1m

Cable : Part No. 2964 Standard color : Black

3

PATCH CORDS
1/4" Plug to 1/4" Plug (2P/Mono)
LENGTHPart No.

PP-01

PP-03

PP-06

PP-10

PP-15

PP-20

Length

1 Ft
30cm

3 Ft
90cm

6 Ft
1.8m

10 Ft
3m

15 Ft
4.5m

20 Ft
6.1m

Cable : Part No .2964 Standard color : Black

1/4" Plug to 1/4" Plug (3P/Stereo/TRS)LENGTHPart No.

SS-01

SS-03

SS-06

SS-10

SS-15

SS-20

Length

1 Ft
30cm

3 Ft
90cm

6 Ft
1.8m

10 Ft
3m

15 Ft
4.5m

20 Ft
6.1m

Cable : Part No .2893 Standard color : Black

1/4" Plug to RCA PlugLENGTHPart No.

PR-01

PR-03

PR-06

PR-10

PR-15

PR-20

Length

1 Ft
30cm

3 Ft
90cm

6 Ft
1.8m

10 Ft
3m

15 Ft
4.5m

20 Ft
6.1m

Cable : Part No .2964 Standard color : BlackBNC to RCA
LENGTHPart No.

BR-03

BR-06

BR-10

BR-16

Length

3Ft
0.9m

6Ft
1.8m

10Ft
3.0m

16Ft
4.8m

Cable : Part No. 2964 Standard Color : BlackBNC to BNC

LENGTHPart No.

BB-01

BB-02

BB-03

BB-06

BB-10

BB-16

BB-25

BB-33

BB-50

BB-66

BB-100Length

1Ft
0.3m

2Ft
0.6m

3Ft
0.9m

6Ft
1.8m

10Ft
3.0m

16Ft
4.8m

25Ft
7.6m

33Ft
10.0m

50Ft
15.2m

66Ft
20.1m

100Ft
30.5m

Cable : Part No. 2964 Standard Color : Black・Red・Yellow・Green・Blue

4

PATCH CORDSCABLE SPECIFICATIONS
Configuration

Part No.

2964

No. of Conductor
Conductor

1(Mono)DetailsSize(mm2)30/0.08 OFC

0.226mm2 (#24 AWG)

0.15mm2 (#26 AWG)

2.65φ(0.104")

1.0φ(0.039")

Material

XLCPE (Cross-Linked Cellular PE)

XLPEColorsClear

Black/Red/Blue/Clear

Double Served Shield
Approx.66/0.12 OFC, Approx.72/0.12 OFC

Served Shield

Approx.66/0.12 OFC

Approx.72/ 0.12A

4.8φ(0.189")

Ov. Dia.(mm)Jacket2893
4(Quad)20/0.12 OFC

Ov. Dia.(mm)Insulation

2965
2×1(Dual)

Flexible PVC

Material
Black/Red/Yellow/Green/Blue

Black

Black/Red/Yellow/Green/Blue

Roll Sizes

50m/100m/200m(164 Ft /328Ft/656Ft)

77m /153m(250 Ft /500 Ft )50m/100m/200m(164Ft/328Ft/656 Ft)

Weight3.4kg/100m(328Ft)

8.9kg/153m(500Ft)

7.5kg/200m(656Ft)

ColorsELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

2964

DC Resistance at
20℃

Inner Cond.

2965

0.083Ω/m(0.025Ω/Ft)

0.012Ω/m(0.0037Ω/Ft)

ShieldCapacitance at 1kHz,20℃
Inductance between conductors
at 1kHz. 20℃

0.023Ω/m(0.0070Ω/Ft)

57pF/m(17.4pF/Ft)

Ref. Page 8.

0.4μH/m(0.12μH/Ft)

0.5μH/m(0.15μH/Ft)

75Ω

-

0.047dB/m(0.014db/Ft)-

Characteristic Impedance(10MHz)
Attenuation(10MHz) ＊(1)0.025Ω/m(0.0076Ω/Ft)

2893
0.13Ω/m(0.040Ω/Ft)

Phase Constant(10MHz)

0.3 rad/m-

Electrostatic Noise ＊(2)50m V Max.

50m V Max.

Microphonics at 50KΩ Load ＊(2)40m V Max.

30m V Max.

Voltage Breakdown

Must withstand at DC 500V/15sec.
105 M Ω・m Min. at DC 125V,20℃

Insulation ResistanceFlex Life ＊(2)Tensile Strength

16,000cycles

16,500cycles

26,000cycles

274N

539N

500N

Emigration

non–emigrant to ABS resin

Applicable Temperature-20℃~ +70℃(-4°F~ +158°F)

1 dB=0.1151 neper ( 1 neper=8.686 dB )＊ (1)Attenuation＊ (2)Using standard testing methods of Mogami Wire & Cable Corp.
Note : For digital audio cable Part No.3228 cable, see page48

150

100

1000 1e+04
freq. KHZ

-1
10

0.1
0.01

0.002
100

1000 1e+04
freq. KHZ

0
10

0.001
100

High frequency characteristics of Part No.2964 and #2965.

5phase rad/m
1

0.004

-0.5

100
50
10

atten. nepar/m
0.006

arg〔Z〕rad0

abs〔Z〕ohm
200

1000 1e+04
freq. KHZ

0.0001
101001000 1e+04
freq. KHZ

PATCH CORDS
600Ω AUDIO TERMINATION /600Ω
Longframe Plug

7.8φ

7.6φ

43

4.4φ

3.17φ

4.4φ

22

(48)

26.0

(φ10.6)

Bantam Plug

600Ω Bantam Plug Termination and600Ω Longframe Plug Termination.

(34)

(14)

(Dimensions in mm)

Part No.

BantamLongframe

PJM-TNT

LF-TNT

Plug Mold
Metal Film Resistor

Material

PVC

Color

Ivory

Power Rating

1/4W

Resistance602Ω±1%PART NUMBERING SYSTEM FOR CUSTOM ASSEMBLIES
Ordering Information
ExampleOne end: XLR Male
Another end : XLR Female
Length: 5m
Colour: BlueDesirable Cable : 2534

MF - 50 - 06 Connectors at both ends
M=XLR MaleF =XLR Female
J =Bantam Plug
L =Long Frame PlugP =1/4" 2p Phone Plug
S =1/4" 3p Phone PlugR =RCA Phono Plug
3.5S=3.5mm 3P Mini Plug
B =75Ω BNC (male)

2534

Cable Length

Cable Part No.
Example
2534
2893
2791
2552
2964
2965
etc.

Cable Colour
00=Black
01=Brown
02=Red03=Orange
04=Yellow
05=Green
06=Blue
07=Purple
08=Gray
09=White( specify units )Example1.0m=102.5m=255.0m=50
7.5m=75
10.0m=100

In case of XLR audio connector, please specify the hot pin number #2 or #3.
Also, for any special wiring, wiring diagram is necessary.
Followings are representative wiring diagrams for your reference.
Standard Connection
(1)
XLR
1
2
3

(2)

XLR
1
2
3

Bantam Plug
Sleeve
Ring
Tip

(3)

XLR

1
3
2

XLR
1
3
2

1/4" MONO PLUG

Connector Specifications (Dimensions in mm)(φ10.6)

Longframe Plug

(48)

26.0

(34)

(14)

4.4φ

7.8φ

43
7.6φ

22
4.4φ

Bantam Plug36

82

1/4"(6.35φ) Plug

37

14

11φ

12φ

14

11.7φ

9.9

12φ

RCA Plug

Construction

RCA Phono Plug

1/4" Phone Plug

Bantam Plug

Longframe PlugContacts

Brass, Gold plate

Brass, Nickel plate

Brass, Nickel plate

Brass, Nickel plate

ShieldBrass, Nickel plate

Brass, Nickel plate

Flexible PVC

Flexible PVC(Double Mold)

Phosphor Bronze, Gold plate

Brass, Nickel plate

Insulation

ABS Resin

Polystyrene

Molding

Flexible PVC

Flexible PVC(Double Mold)

NOTE: For BNC connector, please refer to Page 40〜42.

Polyacetal

Polyacetal

6

MICROPHONE CABLES
NEGLEX QUAD MIC. CABLES

NEGLEX type Quad Cables have been developed for the highest quality recording applications
where maximum definition of recorded sound is of critical importance. Special proprietary materials& construction methods make those state-of-the-art mic. cables a must for direct to DISC anddigital recording. Basic matters of flexibility, microphonics and shielding effect have been
designed to meet international professional requirements. A Balanced quad structure is effective
for high definition sound transmission as well as in canceling electromagnetic induction causedby nearby equipment such as floodlight projection, and therefore is well adapted to motion
picture and TV studios.
■ Conductor insulation is XLPE (Cross-Linked Polyethylene) which has excellent electrical characteristics
and prevents shrink-back during soldering.

■ Served (spiral) Bare Copper Shield is better for sound quality and simplifies termination.

Reference Standard NEGLEX Quad High Definition Mic. Cable
NEGLEX No.2534 has become popular around the world as thestandard for high quality digital and analog recording. The cable has
also become popular for use with unbalanced equipment, such as
high quality pre-amp, amp inputs and tape decks.

Part No.2534

Miniature Quad Superflexible Mic. Cable
Originally designed for BANTAM patch-cords, this cable has
become popular where a small diameter Quad mic cable is required.

Part No.2893

7

MICROPHONE CABLES
NEGLEX QUAD MIC. CABLESSPECIFICATIONS
Configuration

Part No.

2534

2893

No. of Conductor

4

Details

Conductor

Size(mm2 )Ov. Dia.(mm)Insulation

Material

30/0.08 OFC
0.15mm2(#26AWG)

1.6φ(0.063")

1.0φ(0.039")

XLPE( Cross-Linked Polyethylene )ColorsServed ShieldOv. Dia.(mm)Jacket20/0.12 OFC
0.226mm2(#24AWG)

Blue/Clear(Quad)Black/Red/Blue/Clear

Approx. 62/0.18A

Approx. 72/0.12A

6.0φ(0.236")

4.8φ(0.189")

Material

Flexible PVC

Flexible PVC

Colors10 colours available

5 colours available

50 m (164Ft)
100m (328Ft)
200m (656Ft)

50 m (164Ft)
100m (328Ft)
200m (656Ft)

11 kg

7.5kg

Roll Sizes
Weight per 200m Roll

ELECTRICAL & MECHANICAL CHARACTERISTICS
2534

2893

Inner Cond.

0.083Ω/m(0.025Ω/Ft)

0.13Ω/m(0.040Ω/Ft)

Shield

0.012Ω/m(0.0037Ω/Ft)

0.023Ω/m(0.0070Ω/Ft)

Part No.
DC Resistanceat 20℃

Capacitance at 1kHz,
20℃ ( Partial C. Value )See below figure ＊(1)K0

65pF/m(20 pF/Ft)

74pF/m(23 pF/Ft)

K1

13pF/m(4 pF/Ft)

11pF/m(3.4 pF/Ft)

K2

4pF/m(1.2 pF/Ft)

3pF/m(0.9 pF/Ft)

Cond.-Cond.
Cond.-Shield.

97pF/m(29.6 pF/Ft)

131pF/m(40 pF/Ft)

110pF/m(33.6 pF/Ft)

178pF/m(54 pF/Ft)

Inductance betweenn conductors
at 1kHz, 20℃

0.4μH/m (0.12μH/Ft)

0.5μH/m(0.15μH/Ft)

Balanced Quad
Connection

50 mV Max.

50 mV Max.

Electromagnetic Noise

0.15 mV Max.

0.15 mV Max.

Microphonics at 50kΩ Load

30 mV Max.

30 mV Max.

Electrostatic Noise ＊(2)

＊(2)

＊(2)

Voltage Breakdown

Must withstand at DC 500V/15 sec.

Insulation Resistance

105 MΩ・m Min. at DC 125 V, 20℃＊(2)Flex Life

Tensile Strength
Emigration
Applicable Temperature

11,000 cycles

26,000 cycles

686 N

500 N
Non-Emigrant to ABS-20℃~ + 70℃ (-4゜
F~ + 158 ゜F)＊(2) Using standard testing methods of Mogami Wire & Cable Corp.

＊(1) Partial Capacitance
K0
K0

K1
K2
K1
K0

K2
K1

K0

K1

8

MICROPHONE CABLESHIGH QUALITY BALANCED MIC. CABLES
NEGLEX TYPE #22AWG BALANCED MIC. CABLE
2549 has been designed using our famous Neglex OFC to provide the highest quality of audio reproduction
in any recording application. It features ＃22AWG conductors and lower capacitance than our quad cables.
The served shield and twisted pair construction is excellent at preventing noise caused by electromagnetic
interference. This cable is recommended when high frequencies are important and where long cable runs
are needed, and, it is cheaper and easier to terminate than quad cables.

Part No.2549

105 STRAND BROADCAST MIC. CABLE
Excellent for rugged remote and on stage use in Sound Reinforcement, TV, Radio broadcasting etc. Its
compact size together with a heavy duty binder and filler system and a braided shield make it ideal for allcontinuous handling applications. Exhibits very low microphonic pick-up and can operate at very cold
temperatures down to -20°C (-4°F) without losing its flexibility. 105 strands of 0.05 mm O.D. annealed barecopper (#44AWG) features ultra flexibility with long flex life, maintaining excellent strength characteristics.

Part No.2791

POLAR FLEX - EXTREME TEMPERATURE BALANCED MICROPHONE CABLE
Polar Flex TM microphone cable is designed to maintain flexibility down to -40°C (-40°F). This is achievedby utilizing a TPE jacket instead of the more common PVC. This extremely rugged, durable cable uses
the same unique, high strand-count internal construction as the 2791 Stage/Broadcast cable. Available
in black and white.

9Part No.3284

MICROPHONE CABLESHIGH QUALITY BALANCED MIC. CABLESSPECIFICATIONS
Configuration

2549

Part No.

2791

No. of Conductor
Conductor

2

DetailsSize(mm2 )Insulation

Ov. Dia. (mm)Material

30/0.12 OFC

105/0.05 A

0.339mm2 (#22AWG)

0.206mm2 (＃24AWG)

1.9φ(0.075")

1.5φ(0.059")

XLPE( Cross-Linked Polyethylene )Colors

Blue/Clear

ShieldRed/Clear
Braid 24/6/0.10A

Served Approx. 62/0.18A

Jacket3284

Ov. Dia. (mm)6.0φ(0.236")

Material

Flexible PVC

ColorsBraid 24/6/0.10TA

5.5φ(0.217")

Black/Red/Yellow/Green/Blue

Flexible TPE
Black

Black/White

50 m (164Ft)
100m (328Ft)
200m(656Ft)

Roll Sizes
Weight per 100m Roll

4.8 kg100m (328Ft)

4.2kg

3.4kg

ELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

DC Resistanceat 20℃

2549

2791

3284

Inner Cond.

0.058Ω/m(0.018Ω/Ft)

0.09Ω/m(0.027Ω/Ft)

Shield

0.012Ω/m(0.004Ω/Ft)

0.02Ω/m(0.006Ω/Ft)

K0

76pF/m(23 pF/Ft)

86pF/m(26 pF/Ft)

K1

11pF/m(3.4 pF/Ft)

10pF/m(3.1 pF/Ft)

0.8μH/m (0.24μH/Ft)

0.8μH/m (0.24μH/Ft)

Capacitance at 1kHz, 20℃( Partial C. Value )See below figure ＊(1)Inductance between conductors
at 1kHz, 20℃＊(2)

50 mV Max.

250 mV Max.

Electromagnetic Noise

0.15 mV Max.

0.15 mV Max.

Microphonics at 50kΩ Load

30 mV Max.

30 mV Max.

Electrostatic Noise

＊(2)
＊(2)

Voltage Breakdown

Must withstand at DC 500V/15 sec.

Insulation Resistance

105 MΩ・m Min. at DC 125 V, 20℃＊(2)Flex Life

Tensile Strength
Emigration
Applicable Temperature

14,500 cycles

131,000 cycles

53,000 cycles

578 N

657 N
Non-Emigrant to ABS-20℃ ~ + 70℃ (-4 ゜
F ~ + 158 ゜
F)＊ (2) Using standard testing methods of Mogami Wire & Cable Corp.

-40℃~ + 60℃ (-40゜
F~ + 140゜F)＊ (1) Partial Capacitance

K0

K1

K0

10

MICROPHONE CABLESLOW COST HIGH PERFORMANCE SUPERFLEXIBLE BALANCED MIC. CABLES
A specially developed high performance yet economical series of low impedance balanced
microphone cables. These cables are small in size and special rubber‐like PVC jacket isextremely flexible and exhibits good resistance to rough handling and abrasion.
High grade insulation material is designed to minimize heat shrinkage during soldering which allows
easy termination to XLR type connectors. Available in both overall and individually sheilded types.

Part No.2552 & 2582
Superflexible Light Weight Mic.Cables With Overall Shield
Here is an extremely limp and flexible cable for all types ofaudio/visual and industrial audio applications. XLPE insulation anda strong rubber‐like outer jacket makes this cable ideal wherea durable yet economical cable is needed.

Part No.2552

Part No.

2552

2582

O.D. ( mm )5.0φ(0.197")

6.0φ(0.236")

Flex Life

11,000 cycles

13.800 cycles

Tensile Strength

421N

Colors

Black

441N

Black/Red/Yellow/
Green/Blue/GrayPart No.2447 & 2435
Superflexible Light Weight Mic.Cables With Individual Shield
A durable and mechanically strong cable similar to 2552 but with
two separately served shields. This produces capacitance level alittle higher than that of 2552.
Part No.

Part No.2447

2447

2435

O.D. ( mm )5.0φ(0.197")

6.0φ(0.236")

Flex Life

14,000 cycles

24,000cycles

Tensile Strength

451 N

451 N

Color

Black

Black

Part No.2792
LOW MICROPHONICS MIC.CABLE WITH CONDUCTIVE PVC
Conductive material is coated on top of the XLPE insulation which
reduces microphonic handling noise to negligible level even in highimpedance applications. Before soldering the black coating shallbe stripped back.
Part No.

Part No.2792

6.0φ(0.236")

Flex Life

22,000cycles

Tensile Strength
Colors112792

O.D. ( mm )490 N
Black/Red/Yellow/Green/Blue/GrayMICROPHONE CABLESLOW COST HIGH PERFORMANCE SUPERFLEXIBLE BALANCED MIC. CABLESSPECIFICATIONS
Configuration

2552

Part No.

2447

2582

12/0.12 A〈T250D＊3〉

Details

0.135mm2 (#26AWG)

Size(mm 2)
Insulation

2792

2

No. of Conductor
Conductor

2435

1.5φ(0.059")

Ov. Dia. (mm)Material

XLPE( Cross-Linked Polyethylene )Colors

Red/Clear
1.75φ(0.069")

Conductive PVC(mm)Approx. 70/0.12A

Served Shield
JacketOv. Dia. (mm)5.0φ(0.197")

Approx. 40/0.12A

6.0φ(0.236")

Material

6.0φ(0.236")

6.0φ(0.236")

Black

Black

Black/Red/Yellow/
Green/Blue/Gray

5.0φ(0.197")
Flexible PVC

Black

Black/Red/Yellow/
Green/Blue/Gray

50 m (164Ft)
100m (328Ft)
200m(656Ft)

50 m (164Ft)
100m (328Ft)
200m(656Ft)

100m (328Ft)
200m(656Ft)

100m (328Ft)
200m(656Ft)

50 m (164Ft)
100m (328Ft)
200m(656Ft)

7.5 kg

9 kg

7.7kg

9kg

8.8kg

2435

2792

ColorsRoll Sizes

Approx. 95/0.12A

Weight per 200m Roll

ELECTRICAL & MECHANICAL CHARACTERISTICS
2552

Part No.
DC Resistanceat 20℃2582

0.14Ω/m(0.043Ω/Ft)

Inner Cond.
0.024Ω/m(0.007Ω/Ft)

0.021Ω/m(0.006Ω/Ft)

0.018Ω/m(0.005Ω/Ft)

K0

90pF/m(27 pF/Ft)

123pF/m(37.5 pF/Ft)

127pF/m(38.7 pF/Ft)

K1

10pF/m(3pF/Ft)

ShieldCapacitance at 1kHz,
20℃ ( Partial C. Value )See below figure ＊(1)Inductance betweenn
conductors at 1kHz, 20℃
Electrostatic Noise

＊(2)

2447

0.8μH/m (0.24μH/Ft)

50 mV Max.

50 mV Max.

＊(2)

0.15 mV Max.

Electromagnetic Noise

Microphonics at 50kΩ Load ＊(2)30 mV Max.

30 mV Max.

30 mV Max.

30 mV Max.

Voltage Breakdown

Must withstand at DC 500V/15 sec.

Insulation Resistance

105 MΩ・m Min. at DC 125 V, 20℃

Flex Life ＊(2)Tensile Strength
Emigration
Applicable Temperature

0.5 mV Max.
1 mV Max.

11,000 cycles

13,800 cycles

14,000 cycles

24,000 cycles

22,000 cycles

421 N

441 N

451 N

451 N

490 N

Non-Emigrant to ABS-20℃~ + 70℃ (-4゜
F~ + 158゜F)＊(2) Using standard testing methods of Mogami Wire & Cable Corp.
K0＊ (1) Partial Capacitance

K1

K0

2552/2582

K0

K02447/2435/2792

12

MICROPHONE CABLESMINIATURE BALANCED MIC.CABLES/LAVALIER MIC.CABLES

Part No.2697

Part No.3031

Part No.2901

These miniature microphone cables feature necessary mechanical strength（tensile strength andlong flex life）
and flexibility for lavalier microphones and other applications. All balanced
configuration. Part No.3031 cable is exactly same construction as Part No.2697 cable except forshield structure. Part No.2697 cable is constructed with served（spiral）shield, while Part No.3031
cable is constructed with braided shield. Part No.2901 is specially designed with better tensile
strength and longer flex life, sacrificing some sound quality, and creating a slightly moredifficult soldering job because of used copper-tin alloy conductor, this cable is mechanically verystrong and durable. Of couse, its cost is higher.

Note : Any specific countermeasure against microphonics( noise ) for high impedance microphones is not taken forthese three lavalier microphone cables.

13

MICROPHONE CABLESMINIATURE BALANCED MIC.CABLES/LAVALIER MIC.CABLESSPECIFICATIONS
Configuration

Part No.

2697

No. of Conductor
Conductor
Insulation

2901

3031
2

DetailsSize(mm )2

16/0.08 A〈T1000D＊1〉

43/0.04 Cu-Sn

0.08mm (#29AWG)

0.054mm2(#30AWG)

0.85φ(0.033")

0.6φ(0.0236")

2

Ov. Dia. (mm)Material

PVC

Polyester

Colors

Red/White

Black/Red

Filler Thread

Fiver

ShieldOv. Dia. (mm)JacketServed Shield

Braided Shield

Double Served Shield

Approx.60/0.08A

16/6/0.08A

Approx.36/0.08A, Approx.40/0.08A

2.5φ(0.098")

2.8φ(0.110")2.16φ(0.085")

Material

Flexible PVC

ColorsBlack/WhiteBlack

50 m (164Ft)
100m (328Ft)
200m (656Ft)

200m (656Ft)(on spool)

305 m (1000Ft)

1.8kg/200m

2.5kg/200m

2.6kg/305m

Black

Roll Sizes
WeightELECTRICAL & MECHANICAL CHARACTERISTICS
2697

3031

2901

0.063Ω/m(0.019Ω/Ft)

0.038Ω/m(0.0116Ω/Ft)

0.07Ω/m(0.0214Ω/Ft)

K0

300pF/m(92pF/Ft)

290pF/m(88 pF/Ft)

176pF/m(54 pF/Ft)

K1

57pF/m(17pF/Ft)

70pF/m(21 pF/Ft)

32pF/m(9.8 pF/Ft)

Part No.
DC Resistanceat 20℃

Inner Cond.

0.23Ω/m(0.070Ω/Ft)

ShieldCapacitance at 1kHz, 20℃( Partial C. Value )See below figure ＊(1)Inductance between conductors
at 1kHz, 20℃
Electrostatic Noise ＊(2)Electromagnetic Noise

0.8μH/m (0.24μH/Ft)
50 mV Max.

＊(2)

＊(2)

Microphonics at 50kΩ Load

0.41Ω/m(0.125Ω/Ft)

1mV Max.

200mV Max.
0.15 mV Max.

300mV Max.

40mV Max.

150mV Max.

Voltage Breakdown

Must withstand at DC 500V/15 sec.

Insulation Resistance

105MΩ・m Min. at DC 125 V, 20℃＊(2)Flex Life

Tensile Strength
Emigration
Applicable Temperature

34,100 cycles

26,000 cycles

294 N

313 N

177,000 cycles
176 N

Non-Emigrant to ABS resin-20℃~ + 70℃ (-4゜
F~ + 158゜F)＊(2) Using standard testing methods of Mogami Wire & Cable Corp.

＊ (1) Partial Capacitance

K0

K1

K0

14

MICROPHONE CABLESUNBALANCED MIC. CABLESECONOMICAL SUPERFLEXIBLE UNBALANCED MIC.CABLES
These cables show Mogami’s manufacturing and cable design expertise in creating an economical
unbalanced cables which maintain necessary mechanical strength（tensile strength and long flex life）
and flexibility for a microphone cable. Two overall diameter sizes are available with exactly the same
construction.

Part No.

2330

2333

O.D. ( mm )3.0φ(0.118")

4.0φ(0.157")

Flex Life

15,500cycles

16,500 cycles

Tensile Strength

274 N

284 N

Color

Black

Black

Part No.2333

Note : For the very highest quality recording applications, Mogami original high-end Neglex audio cable PartNo. 2803 or Part No.2497 constructed with patented Double‐Cylindrical structure should be used.

MINIATURE UNBALANCED MIC. CABLE

Part No.2368

Part No. 2368 cable has the same structure as Part No. 2697 cable except for an unbalanced
configuration. Therefore, although it naturally becomes weaker than Part No. 2697 cable because of its
smaller overall diameter, its mechanical strength is much higher than any comparable overall diameter
cable without any special contrivance, besides, it is low cost.
Note : Any specific countermeasure against microphonics ( noise ) for high impedance microphones is nottaken for this cable.

15

MICROPHONE CABLESUNBALANCED MIC. CABLES / LAVALIER MIC. CABLE
SPECIFICATIONS
Configuration

Part No.

2330

2333

No. of Conductor
Conductor

Details

16/0.08 A〈T1000D＊1〉

Size(mm )0.08mm2(#29AWG)

2

Ov. Dia.(mm)Insulation

Material

1.5φ(0.059")

1.0φ(0.039")

XLPE( Cross‐Linked polyethylene )

PVC

Color
Served ShieldOv. Dia.(mm)Jacket

2368

1

Clear

White

Approx. 40/0.12A

Approx. 40/0.08A

3.0φ(0.118")

4.0φ(0.157")

Material

2.0φ(0.079")

Flexible PVC

Color

Black

Roll Sizes

100m (328Ft)
200m(656Ft)

200 m (656Ft)(standard)

100 m (328Ft)
200 m (656Ft)

2.5 kg

4.2kg

1.5kg

Weight per 200m Roll

ELECTRICAL & MECHANICAL CHARACTERISTICS
2330

Part No.
DC Resistanceat 20℃

2333

Inner Cond.

0.23Ω/m(0.07Ω/Ft)

ShieldCapacitance at 1kHz, 20℃＊(1)
See below figure

2368

K0

0.042Ω/m(0.013Ω/Ft)

0.094Ω/m(0.029Ω/Ft)

115pF/m(35 pF/Ft)

350pF/m(107 pF/Ft)

Inductance between conductors
at 1kHz, 20℃

0.3μH/m (0.092μH/Ft)
50 mV Max.

＊(2)

Electrostatic Noise

LOD(Limit of Detection)＊(2)

Electromagnetic Noise＊(2)

1V Max.

30 mV Max.

Microphonics at 50kΩ Load

Voltage Breakdown

Must withstand at DC 500V/15 sec.

Insulation Resistance

105MΩ・m Min. at DC 125 V, 20℃＊(2)Flex Life

Tensile Strength

15,500 cycles

16,500 cycles

43,000 cycles

274 N

284 N

206 N

Emigration

Non-Emigrant to ABS resin

Applicable Temperature-20℃~ + 70℃ (-4゜
F~ + 158゜F)＊(2) Using standard testing methods of Mogami Wire & Cable Corp.

＊ (1) Partial Capacitance

Ko

16

MICROPHONE CABLES#24AWG STEREO MIC. CABLE

Part No.3106

Stereo microphone cable comprised of larger and mechanically stronger cores for those who need
stereo wiring at stage recording etc. to get rid of tangling problems. OD of each channel is
4.8mm(0.189") to relieve any anxiety about mechanical strength of separated cores connected to eachXLR 3P audio connectors when compared with regular 2-core snake cable. This design of OFC
conductor and low capacitance as regular size microphone cable assures the same reliable soundquality as MOGAMI ＃2549 mic cable level.

HIGH TENSION AERIAL MIC. CABLES

Part No.3177 (MONAURAL)

Part No.3178 (STEREO)

These cables are designed for suspension microphones reinforced by one stainless steel wire rope of
830N（187 pounds）breakable weight for monaural type（Part No. 3177）and two same size ropes forstereo type（Part No. 3178）. Although the sound quality is compromised a little（especially at highfrequency range）, they are all designed with quad（shielded four conductor）
configuration for wider
applications（to provide stronger electromagnetic noise cancellation）.

17

MICROPHONE CABLESSTEREO MIC. CABLE / AERIAL MIC. CABLESSPECIFICATIONS
Configuration

Part No.

3106

3177

3178

2

1

2

2

4

4

20/0.12OFC

20/0.12OFC

30/0.08OFC

0.226mm2 (#24AWG)

0.226mm2 (#24AWG)

0.15mm2 (#26AWG)

1.6φ(0.063")

1.6φ(0.063")

0.9φ (0.0354")

No. of Cores
No. of Conductor
Conductor

DetailsSize(mm2)

Insulation

Ov. Dia. (mm)Material
ColorsXLPE (Cross-Linked Polyethylene)

Blue/White（Quad）

Blue/Clear

Stainless Steel Wire Rope

Material
Reinforcement

Monofilament

Filler Thread
Binder

7/7/0.11

Details
Numbers of Rope

1

2

Breakable Weight

830 N (187pound)

1,660 N (374pound)

Ov. Dia. (mm)1.07φ(0.042")

Material

PE ( Polyethylene)
0.025mm (0.00098")

Material

Paper Tape
Approx. 80/0.12A

Served Shield
Core Jacket

Fiber

ー
Thickness

Approx.134/0.12A

Approx.68/0.10A

Ov. Dia. (mm)

2.8mm (0.110")Material

PVC

Colors

Red/White
Polypropylene

Filler Thread
BinderOv. Jacket

0.025mm (0.00098")

Thickness

Paper Tape

Material

Ov. Dia. (mm)2×4.8φ(2×0.189")

Material

6.8φ(0.268")

PVC
Black

ColorsRoll Sizes

7.4φ(0.291")

PVC+Polyurethane Compound
Light Gray

50 m (164Ft) 100m (328Ft) 200m(656Ft)

200m (656Ft)

200m (656Ft)

5.7Kg/100m

12.2Kg/200m

13.3Kg/200m

WeightELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

DC Resistanceat 20℃

Inner Conductor.

ShieldCapacitance at
K0 (Shield-Conductor)
1kHz,20℃
K1(ParitialCapacitance Value) (between neighbour conductors)＊（1）
K2
See below figure

Balanced Quad Cond-Cond
Connection

Cond-Shield

Inductance

3106

3177

3178

0.083Ω/m(0.025Ω/Ft)

0.083Ω/m(0.025Ω/Ft)

0.13Ω/m(0.0397Ω/Ft)

0.021Ω/m(0.0064Ω/Ft)

0.013Ω/m(0.0040Ω/Ft)

0.036Ω/m(0.011Ω/Ft)

77pF/m(23.5 pF/Ft)

108pF/m(32.9 pF/Ft)

83pF/m(25.3pF/Ft)

10pF/m(3.1 pF/Ft)

8pF/m(2.44 pF/Ft)

18pF/m(5.49 pF/Ft)ー

3pF/m(0.92 pF/Ft)

3pF/m(0.92 pF/Ft)ー

107pF/m(32.6 pF/Ft)

160pF/m(48.8 pF/Ft)ー

190pF/m(58.0pF/Ft)

222pF/m(67.7pF/Ft)

0.9μH/m (0.27μH/Ft)

0.5μH/m (0.15μH/Ft)

0.2μH/m (0.061μH/Ft)

5 mV Max.

20mV Max.

5mV Max.

0.5 mV Max.

0.013 mV Max.

0.06 mV Max.

Microphonics ＊（2）10 mV Max.

5 mV Max.

10 mV Max.

Voltage Breakdown

AC 500V/60sec.

Electrostatic Noise ＊（2）Electromagnetic Noise at 10kHz ＊（2）Insulation ResistanceMust withstand at DC 500V/15sec.
105 MΩ・m Min. at DC 500V, 20℃

Flex Life ＊（2）100,000 cycles

Tensile Strength

382 N (per pair)

36,100 cycles

59,000 cycles
Over 980 N

Emigration

Non-Emigrant to ABS resin

Applicable Temperature-20℃~+70℃ ( -4°F~+158°F)

Standard

UL 2552 AWM 30V 60℃ VW-1＊
（2）Using standard testing methods of Mogami Wire & Cable Corp.

ーー＊(1) Partial Capacitance

K0

K0

K1

K0

K0

K1
K2
K1
K0

K2
K1

K0

K1

18

MICROPHONE CABLESHIGHEST DEFINITION TUBE MICROPHONE CABLE
Specifically designed highest sound quality
tube microphone cable basd on representativeelectrical circuits of today’s tube microphoneincluding its power supply. Applicable to mostrepresentative tube microphones.

SPECIFICATIONS
Configuration

Part No.

3172

No. of Conductor
Conductor

6

Size(mm2)
Insulation

Conductor

0.15mm2(#26AWG)

Ov. Dia. (mm)Conductor

XLPE

ColorsOrange/White

Details

2×(75/0.04Cu-Sn)
0.094mm2(#28AWG)

Ov. Dia. (mm)1.0φ(0.039")

Material
Colors

Red/Purple

Details

2×(80/0.08A)
0.40mm2(#22AWG)

Ov. Dia. (mm)1.6φ(0.063")

Material

Green/Blue
Double Served Shield
Approx. 120/0.10A and Approx. 120/0.10A

ShieldBinderOv. Jacket

HEATER CIRCUIT

PVCColorsPart No.3172

BIAS

XLPE

Size(mm2)
Insulation

MIC. OUTPUT

1.0φ(0.039")

Material

Size(mm2)
Insulation

Signal Assignment

2×(30/0.08OFC)

Details

Thickness

0.025mm(0.00098")

Material

Paper Tape

Ov. Dia. (mm)6.5φ(0.256")

Material

Flexible PVC

Color

Black

Roll Size

100 m (328Ft)

6.3kg

Weight per 100m Roll

ELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

3172
0.13Ω/m (0.040Ω/Ft)

MIC SIGNAL

DC Resistance Inner Conductor.
at 20℃
ShieldCapacitance at
1kHz, 20℃

Shield-Conductor
between neighbour conductors

InductanceElectrostatic Noise ＊Electromagnetic Noise at 10kHz＊

Microphonics ＊0.23Ω/m (0.070Ω/Ft)

BIAS CIRCUIT

0.046Ω/m (0.014Ω/Ft)

HEATER CIRCUIT

0.012Ω/m(0.0034Ω/Ft)
230pF/m(70pF/Ft) 100pF/m(30pF/Ft) 93pF/m(28pF/Ft)"TWISTED PAIR" 56pF/m（17pF/Ft） 46pF/m（14pF/Ft）137pF/m（42pF/Ft）"TWISTED PAIR" 0.4μH/m (0.12μH/Ft)"TWISTED PAIR" 1 mV

Max.

"TWISTED PAIR" 0.1mV

Max.

"TWISTED PAIR" 10 mVMax.

Voltage Breakdown

Must withstand at DC 500V/15sec.

Insulation Resistance

105 MΩ・m Min. at DC 500V, 20℃

Flex

Life ＊

Tensile Strength

13,000 cycles
588 N

Emigration

Non-Emigrant to ABS resin

Applicable Temperature-20℃~+70℃ ( -4°F~+158°F)＊Using standard testing methods of Mogami Wire & Cable Corp.

19

MICROPHONE CABLES

5.1ch SURROUND MICR0PHONE CABLE
Six balanced, individually shielded and jacketed cores inside a small O.D.cable (9mm/.354"). Extreme
flexibility for easy handling and field work. Specifically designed for 5.1 channel surround recording
microphones in collaboration with DPA microphones. Great for limited channels in a smaller format thanour standard multichannel snake cables.

SPECIFICATIONS
3349

Part No.
No. of Cores

6

No. of Conductors
Conductor

2

Details

17/0.08 A

2
Size(mm)

Insulation

0.085mm2(#28AWG)

Ov. Dia.(mm)0.87mm(0.034")

Material

XLPE

Served Shield

Part No.3349

Core Jacket

Configuration

Approx. 70/0.08A
2.4mm(0.094")

Ov. Dia.(mm)PVC

Material

Dark Gray

Color
Filler Thread
BinderFiberThickness

0.025mm(0.00098")
Paper Tape

Material
Ov. Dia.(mm)0v. Jacket

9.0mm(0.354")

Material

PVC

Color

Black

Roll Sizes

100m (328Ft)

Weight8.9 kg/100m

ELECTRICAL & MECHANICAL CHARACTERISTICS
3349

Part No.
DC Resistanceat 20℃

Inner Cond.

0.21Ω/m(0.064Ω/Ft)

Shield0.05Ω/m(0.015Ω/Ft)

Capacitance at 1kHz, 20℃(Partial C.Value)
See below figure ＊(1)K090pF/m(27.5pF/Ft)

K1

15pF/m(4.6pF/Ft)

Inductance between conductors
at 1kHz, 20℃
Electrostatic Noise

0.7μH/m (0.21μH/Ft)
2.5mV Max.

＊(2)

Electromagnetic Noise ＊(2)＊(2)

Microphonics at 50kΩ Load
Voltage Breakdown

0.15mV Max.
30mV Max.
Must withstand at DC 500V/15 sec.

Insulation Resistance

105MΩ・m Min. at DC 125 V, 20℃＊(2)

27,000 cycles

Flex Life

Tensile Strength of one pair
Emigration
Applicable Temperature

130 N
Non-Emigrant to ABS-20℃~ + 70℃ (-4゜
F~ + 158゜F)＊(2) Using standard testing methods of Mogami Wire & Cable Corp.

＊ (1) Partial Capacitance

Ko K1

Ko

20

MICROPHONE CABLES

3.5mm right angle Stereo mini plug to dual cable for Professional use.
Designed for ruggedness and very high sound quality. These assemblies are available in right angle
stereo 3.5mm plug to two unbalanced coaxial cables (using model 2965) for RCA and 1/4 TS plugs, or to
two twisted-pair cables (using model 3106) for connection to normally balanced connectors like 1/4 TRS,XLR, or TT. Applications include MP3 player to sound console or amp, computer to powered speakers,
wireless receiver to monitor, etc. Any length is available on request, with bare breakout ends or factoryterminated.

Signal Type

Unbalanced

Balanced

Used Cable

2965

3106

(38)

(14.0)

(12)

(25)

21

Construction

3.5mm Mini Plug

Cotacts

Brass, Gold plate

ShieldBrass, Gold plate

Insulation

Polyacetal

Molding

Flexible PVC（Double Mold）

INTERCOM HEADSET EXTENSION CABLE

MICROPHONE CABLES

Specifically designed for INTERCOM HEADSET
EXTENSION CABLE. Not sticking to quality ofsound, this cable is designed to be compact,
flexible, light weight and durable handy structure
for practical applications.

Part No.3242-00■ Independent two coaxial core construction for better isolation between microphone signal and earphone signal.
■ Many strands of copper-tin alloy conductor material makes it durable cable without losing flexibility.

■ Compact round shape with smooth slippery surface makes it really handy for practical applications.
■ Both bulk roll cable and standard length cable assemblies are available from stock.

Cable : Part No. 3242-00

Assembly

Configuration

Part No.

IHE-03

IHE-05

IHE-10Length3m
9.8 Ft5m
16.4 Ft

10m
32.8 Ft

ELECTRICAL & MECHANICAL CHARACTERISTICS

SPECIFICATIONS
3242-00

Part No.
Conductor DetailsSize(mm2)
Insulation

Ov. Dia. (mm)Material
ColorsServed Shield
JacketOv. Dia. (mm)1.05φ(0.041")
XLPE
Clear
Approx. 36/0.08A
1.6φ(0.063")

ColorsYellow/Blue

Monofilament Material
Color
Nos.
Filler Thread

Sheath(0.094mm2)(#28AWG)

PVC

Ov. Dia. (mm)Binder75/0.04 Cu-Sn

Material

Nos. of Core

Thickness
Material
Ov. Dia. (mm)2
1.07φ(0.042")
PVC
White
2
Fiber
0.025mm(0.00098")
Paper Tape
PVC

Color

Black

Weight per 100m Roll

DC Resistanceat 20℃

Inner Conductor.
ShieldCapacitance at 1kHz, 20℃

0.22Ω/m(0.067Ω/Ft)
0.12Ω/m(0.040Ω/Ft)
135pF/m(41.2pF/Ft)

Inductance

0.3μH/m(0.09μH/Ft)

Attenuation at 10MHz

0.25dB/m(0.076dB/Ft)

Electrostatic Noise＊

50mV Max.

Characteristic Impedance at 10MHz
Phase Constant at 10MHz
Electromagnetic Noise at 10kHz ＊Microphonics＊

Voltage Breakdown

Insulation ResistanceFlex Life＊

Tensile Strength
Emigration

Applicable Temperature46Ω ±5%0.43rad/m

LOD (Limit of Detection)
40mV Max.

Must withstand at DC 500V/15Sec.

104 MΩ・m Min. at DC 250V, 20℃

50,000 cycles
294 N

Non-Emigrant to ABS resin ABS-10℃~+60℃ ( 10°F~+140°F)＊Using standard testing methods of Mogami Wire & Cable Corp.

5.0φ(0.197")

Material

Roll SizeLENGTH50m(164Ft)/100m(328Ft)/200m(656Ft)
2.9 Kg22

SNAKE CABLES (MULTICORE MIC.CABLES)

Part No.2939

Mogami multicore cables are designed for the highest level of audio performance and feature
superb electrical and mechanical characteristics while remaining compact, superflexible andeasy to use.
■ CL2 rated version available. Conductor size of CL2 rated version is thicker #25AWG so that it is also

recommended for rugged application and firm and easier crimp terminal connector wiring as well as NEC
fire regulation requirement.

■ Individually twisted shielded pairs, available in 2 to 48 channels.

■ Rugged and flexible construction that is easy to handle, even at temperatures down to -20˚C(-4˚F).
■ Easy cable identification system:※Channel numbers are printed and underlined on each core jacket to ensure correct identification, regardlessof which end is stripped.

※Outer jackets of each pair are color coded by standard resistor color code, allowing quick identificationof conductor pairs.

※Inner conductors are also color coded based on the international standard resistor color code. Each pairis color coded by jacket and conductor color combination.

■ Each channel has a drain wire and served ( spiral ) bare copper shield. The drain wire simplify terminationand can be crimped by the same size contact as the inner conductor pair.

■ XLPE (Cross Linked Polyethylene) insulation provides superb electrical characteristics and will not melt
or shrink back during soldering.

23

SNAKE CABLES
STANDARD VERSIONPart No.

No. OfChannels

Ov. Dia.
(Approx. mm)

Jacket Thickness(Approx. mm)(kg/100m)(kg/328Ft)

2930

2- ch

7.5(0.295")

1.0(0.039")

7

2931

4- ch

8.6(0.339")

1.0(0.039")

9

2932

8- ch

11.5(0.453")

1.2(0.047")

18

2933

12- ch14.3(0.563")

1.5(0.059")

28

2934

16- ch15.8(0.622")

1.5(0.059")

32

2935

19- ch17.0(0.669")

1.7(0.067")

40

2936

24- ch20.0(0.787")

2.0(0.079")

46

2937

27- ch20.5(0.807")

2.0(0.079")

58

2938

32- ch21.7(0.854")

2.0(0.079")

63

2939

48- ch2.0(0.079")
26.0(1.02")( Figures in parenthesis are in inches )CABLE CORE SPECS
Conductor
Insulation

Drain Wire
ShieldJacket(Covering)
Identification

WeightMaximumLength available

506m(1.659Ft)

305m(1.000Ft)

200m (656Ft)

97(30×#40AWG)

30/0.08A (0.15mm2) #26AWG
1.0φ XLPE (Cross Linked Polyethylene )7/0.18TA (0.18mm2) #25AWG
Approx. 60/0.10A Served (spiral ) Shield
2.8φ Flexible PVC(0.039"φ)(7×#33AWG)
K0

See core number identification table

Inner Pair Conductor
ShieldCapacitance at 1 kHz, 20℃(Partial Capacitance Value )See Figure (1)InductanceElectrostatic Noise (Hum0.13Ω/m ( 0.040Ω/Ft )0.030Ω/m ( 0.0092Ω/Ft )Ko
K1

130pF/m ( 40pF/Ft )12pF/m ( 3.7pF/Ft )0.6μH/m ( 0.18μH/Ft )Pick-up )＊2.5mV Max.

10kHz ＊

0.1mV Max.

Electromagnetic Noise at( Inductance of the toroidal core: 595μH)
Microphonics ＊Method: Stepping on cable
Voltage Breakdown
Insulation Resistance at DC 125V, 20℃
Tensile Strength of one pair ( 26℃,65% RH )50mV at 50kΩ Load
Must withstand at DC 500V/15sec.
105 MΩ・m Minimum
274 N

Emigration

Non-Emigrant to ABS resin

Applicable Temperature-20˚C~+70˚C (-4˚F~+158˚F)

Standard

K0

Figure（1）ELECTRICAL & MECHANICAL CHARACTERISTICS
DC Resistance at 20℃

K1(0.110"φ)UL13 CL2X 60˚C
＊ Using standard testing methods of Mogami Wire & Cable Corp.

REMARKS： Standard EZID models with 19 channels or more are designed for studio applications only. For PA and/or
non-statistical applications, use the CL2 rated version.

24

SNAKE CABLES
CL 2 RATED VERSION CL2
WeightPart No.

No. OfChannels

Ov. Dia.
(Approx. mm)

Jacket Thickness(Approx. mm)

3040

2- ch

7.8(0.307")

1.0(0.039")

7.2

8- ch

12.0(0.472")

1.2(0.047")19

16- ch16.3(0.642")

3041
3042
3043

12- ch3045

19- ch

3044
3046
3047
3048
3049

1.0(0.039")

9.0(0.354")4- ch

1.4(0.055")
1.7(0.067")

17.5(0.689")

2.0(0.079")

20.5(0.807")

24- ch2.0(0.079")

21.0(0.827")

27- ch2.0(0.079")

22.4(0.882")

32- ch48- ch1.3(0.051")

14.6(0.575")

2.0(0.079")

27.5(1.063")( Figures in parenthesis are in inches )MaximumLengths
available(kg/100m)(kg/328Ft)

10
29

305m
(1.000Ft)

36
44
57
63
73

104

200m (656Ft)

CABLE CORE SPECS
Conductor

7/0.18A (0.178mm2 ) #25AWG

Insulation

1.05φ XLPE (Cross Linked Polyethylene )Drain Wire

7/0.18A ( Exactly same as conductor )ShieldApprox. 65/0. 10A Served (spiral ) Shield

Jacket(Covering)

2.9φ Flexible PVC

Identification

See core number identification table(7×#33AWG)(0.0413"φ)(0.114"φ )K0

Inner Pair Conductor

0.11Ω/m ( 0.0336Ω/Ft )Shield

0.028Ω/m ( 0.0085Ω/Ft )Capacitance at 1 kHz, 20℃(Partial Capacitance Value )See Figure (1)Ko

140pF/m ( 42.7pF/Ft )K1

12pF/m ( 3.7pF/Ft )0.6μH/m ( 0.18μH/Ft )InductanceElectrostatic Noise (Hum Pick-up ) ＊2.5mV Max.

Electromagnectic Noise at 10kHz ＊( Inductance of the toroidal core: 595μH)

0.1mV Max.
50mV at 50kΩ Load

Microphonics ＊Method: Stepping on cableMust withstand at DC 500V/15sec.

Voltage Breakdown

Insulation Resistance at DC 125V, 20℃

105MΩ・m Minimum

Tensile Strength of one pair ( 26℃,65%RH )Emigration

274 N
Non-Emigrant to ABS resin

Applicable Temperature-20˚C~+70˚C (-4˚F~+158˚F)

Standard

UL13 CL2 60˚C
＊Using25

K0

Figure（1）ELECTRICAL & MECHANICAL CHARACTERISTICS
DC Resistance at 20℃

K1

standard testing methods of Mogami Wire & Cable Corp.

SNAKE CABLES
CORE NUMBER IDENTIFICATION TABLE
CORE
NO.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

COLOR OFONE OFTHE PAIR

CORE
JACKET
COLOR

BROWN
RED
ORANGEYELLOW
GREEN

BLACK(WHITE)BLUE
PURPLE
GRAY
WHITE
BLACK
BROWN
RED
ORANGEBROWN(WHITE)YELLOW
GREEN
BLUE

COLOR OFONE OFTHE PAIR

CORE
NO.

17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

PURPLE
GRAY
WHITE

CORE
JACKET
COLOR

CORE
NO.

33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

BROWN
(WHITE)

BLACK
BROWN
RED
ORANGEYELLOW
GREEN

RED(WHITE)BLUE
PURPLE
GRAY
WHITE
BLACK
BROWN
RED

ORANGE(BLACK)

COLOR OFONE OFTHE PAIR

CORE
JACKET
COLOR

ORANGEYELLOW
GREEN
BLUE
PURPLE

ORANGE(BLACK)

GRAY
WHITE
BLACK
BROWN
RED
ORANGEYELLOW

YELLOW(BLACK)GREEN
BLUE
PURPLEGRAY■ Color identification is based on the resistor color code.

■ Colors indicated in parenthesis indicate the number print color on the core jacket.
■ Insulation color of other wire in all pairs is clear.
■ Color of outer cable jacket is black.

■ How to read core jacket channel numbers.

■ Each number printed on the core jacket is underlined ( as shown below ) in order to prevent mis-readingof cable numbers.

8
EXAMPLEmeans SIX
1） 9
6

2）

6

means NINE

9

3）

1
1
8

means EIGHTEEN, not EIGHTY-ONEASSEMBLY OF SNAKE CABLE■ Customised connections and cable assemblies
are available to special order.

■ Connection diagram and detailed specification
sheet are necessary for all order.

■ Delivery : 4 weeks excluding shipping time.
■ For details, consult your Mogami dealer.

26

CONSOLE INTERNAL / EXTERNAL WIRING CABLES
The copper conductors of all these console cables are made of famous NEGLEX OFC, hence we
can recommend any of these with confidence for the highest quality wiring of mixing consoles,
rack panels, and studio equipment.
■ All cables feature XLPE ( Cross-Linked Polyethylene ) which has excellent electrical characteristics andprevents shrink-back during soldering.

■ Served (spiral) shield provides easier cable termination and better sound quality than braided shield.

STANDARD CONSOLE CABLE■ Small size for space saving.

■ Very flexible and easy to use.

■ Ten colors available for easy identification.

■ Same configuration as the core of our standard multi mic. snake cableseries (EZID models).

■ Additional drain wire makes wiring efficient, as it can be crimped by thesame size crimp terminal.

Part No.2944

LARGE CONDUCTOR SIZE CONSOLE CABLE■ ＃22AWG conductor version technically similar to ＃2549 NEGLEX
balanced Mic. Cable except for smaller outer jacket.

■ This item is designed for permanent installation and where larger
conductor size is required such as long runs.

■ Jacket Color: Only Gray is available.

Part No.2806

MINI-QUAD CONSOLE CABLE■ Quad configuration reduces electromagnetic noise.

■ Four different colors of insulation makes it possible to use as a four
conductor overall shield cable.

■ Conductor size: same as＃2944■ Jacket Color: Only Gray is available.

Part No.2799

LARGE SIZE QUAD CABLE■ ＃24AWG conductor version technically similar to ＃2534 NEGLEX
quad Mic. Cable except for smaller and slippery outer jacket.

■ This item is designed for permanent installation and where larger
conductor size is required such as long runs.

Part No.2820

27

CONSOLE CABLESSPECIFICATIONS AND CHARACTERISTICS
Configuration

Part No.

2944

2806

2799

2820

2

2

4

4

Details

30/0.08 OFC

30/0.12 OFC

30/0.08 OFC

20/0.12 OFC

Size

0.15mm (#26AWG)

0.34mm (#22AWG)

No. of Conductor
Conductor

Insulation

Drain Wire

2

Ov. Dia. (mm)Red/Clear

Details

7/0.18A

Size

0.18mm2 (#25AWG)

Blue/Clear

Ov. Dia. (mm)Blue/Clear(Quad)

Approx. 58/0.18A

Approx. 60/0.12A

Approx. 60/0.18A

5.2φ(0.205")

3.2φ(0.126")

5.0φ(0.197")

Gray

Gray

Gray

200 m (656Ft)(standard)

50 m (164Ft)
100m (328Ft)
200m(656Ft)

200 m (656Ft)(standard)

2.5 kg8 kg

3.8 kg8 kg

2.5φ(0.098")

Material
Core Colors

Roll Sizes
Weight per 200m Roll

0.13Ω/m(0.040Ω/Ft)

0.058Ω/m(0.018Ω/Ft)

0.13Ω/m(0.040Ω/Ft)

0.083Ω/m(0.025Ω/Ft)

0.013Ω/m(0.004Ω/Ft)

0.028Ω/m(0.009Ω/Ft)

0.012Ω/m(0.0037Ω/Ft)

K0

130pF/m(40 pF/Ft)

87pF/m(27 pF/Ft)

69pF/m(21 pF/Ft)

65pF/m(20 pF/Ft)

K1

12pF/m(3.7 pF/Ft)

11pF/m(3.4 pF/Ft)

15pF/m(4.6 pF/Ft)

13pF/m(4 pF/Ft)

2pF/m(0.6 pF/Ft)

4pF/m(1.2 pF/Ft)

K2
Cond-Cond.
Cond-Shield.

Quad-Connection
Inductance between conductors
at 1kHz, 20℃
Electromagnetic Noise

PVC

Black/Brown/Red/
Orange/Yellow/Green/
Blue/Purple/Gray/White
50 m (164Ft)
100m (328Ft)
200m(656Ft)

0.029Ω/m(0.009Ω/Ft)

Inner Cond.
DC Resistanceat 20℃
Shield＊(2)

1.6φ(0.063")

Black/Red/Blue/Clear

Approx. 60/0.10A

Electrostatic Noise ＊(2)1.0φ(0.039")

XLPE( Cross-Linked Polyethylene )Core Colors

Capacitance at 1kHz, 20℃( Partial C. Value )See below figure ＊(1)2

1.9φ(0.075")

Material

Served Shield
Jacket1.0φ(0.039")

0.15mm (#26AWG) 0.226mm2 (#24AWG)

2

0.6μH/m (0.18μH/Ft)

0.8μH/m (0.24μH/Ft)

131pF/m(40 pF/Ft)

97pF/m(29.6 pF/Ft)

192pF/m(59 pF/Ft)

110pF/m(33.6 pF/Ft)

0.5μH/m (0.15μH/Ft)

0.4μH/m (0.12μH/Ft)

20 mV Max.

5 mV Max.

1.5 mV Max.

50 mV Max.

0.1 mV Max.

0.2 mV Max.

0.02 mV Max.

0.15 mV Max.

COMMON SPECS.
Voltage Breakdown

Must withstand at DC 500V/15 sec.

Insulation Resistance

105MΩ・m Minimum at DC 125 V, 20℃＊(1) Partial Capacitance
K0

K1

K0
K0

K0

K1
K2
K1

Part No.
2944 & 2806

K0

K2
K1

K0

K1

Part No.
2799 & 2820＊(2) Using standard testing methods of Mogami Wire & Cable Corp.

28

SPEAKER CABLES
SUPERFLEXIBLE STUDIO SPEAKER CABLES
2.0mm2 (APPROX.#14AWG) SPEAKER CABLE TO MEET XLR CONNECTOR CABLE CLAMP

Part No.3082

This standard speaker cable is designed to meet XLR audio connector cable clamp. Coaxial Design
is used to provide as large a conductor size as possible, which results in the following features.

■ Large conductor size of 2.0mm (close to #14AWG) despite small OD of 6.5mm (0.256" ). (Same conductor
size for both internal and external (shield ) conductors.)■ Extremely low induction from outside and affection to outside.
■ Suitable impedance as speaker cable.

■ Better sound quality than quad nor regular parallel configuration.

Now, specify MOGAMI #3082 as world standard of economy and popular professional speaker cable.

SPECIFICATIONSPart No.

Conductor
Insulation

ELECTRICAL & MECHANICAL CHARACTERISTICS
3082

80/0.18 OFC (80×#33AWG)

Details
Size

2.03mm2 (#15 AWG)

Ov. Dia.(mm)Material
Color

Served Shield
Jacket

4.75φ(0.187")
PVC

80/0.18 OFC (80×#33AWG)
2.03mm2 (Approx.#14 AWG)

Size

± 0.5

6.5 φ (0.256± 0.0197"φ)Ov. Dia.(mm)Material

Flexible PVC

Color

Black
100m(328Ft)/200m(656Ft)/
153m(500Ft)

Roll Sizes
Weight per 100m (328Ft) roll

7.5kg

abs〔Z〕 ohm
42

34
10

29

100

1000 10000

freq. KHZ

-0.4
10Same value for both internal and outernal/
shield conductor )Capacitance at 1kHz, 20℃

253pF/m (77pF /Ft )0.2μH/m ( 0.061μH/Ft)

Electrostatic Noise

0.2mV Max.

Electromagnetic Noise at 10kHz

LOD (Limit of Detection)

Voltage Breakdown

Must withstand at DC 500V/15sec.

Insulation Resistance

105 MΩ・m Min. at DC 500V, 20℃

Flex Life

15,000 cycles

Tensile Strength

More than 980 N 以上

Emigration

Non-Emigrant to ABS resin

Applicable Temperature-20℃~+70℃ ( -4°F~+158°F )UL13 CL2X 75℃

phase rad/m
1
0.1

0.01

-0.2

36

Shield Conductor

atten. neper/m
0.02

0

38

Inner Conductor

Standard

arg〔Z〕 rad
0.2

40

DC Resistanceat 20℃

0.009Ω/m (0.0027Ω/Ft )InductanceWhite

Details

3082

Part No.

0.01
0.001

100

1000 10000

freq. KHZ

0
10

100

1000 10000

freq. KHZ

0.0001
101001000 10000

freq. KHZ

SUPERFLEXIBLE STUDIO SPEAKER CABLESSPEAKER CABLESHIGH DEFINITION MULTI SERIES PROFESSIONAL SPEAKER CABLES■ These unique professional speaker cables are originally designed to deliver maximum performance from state-ofthe-art Tri-Amp Systems.

■ They offer true audiophile performance for accurate sound transmission with clear transparent response yet possessa rugged superflexibility for the most demanding professional applications.

■ Each conductor features many strands in rope-lay of famous MOGAMI ’ NEGLEX ’ Oxygen-Free-Copper withincolor-coded PVC insulation. A tough, low profile matte black superflexible PVC jacket protects the cables.

■ Available in series of 2mm2 (close to ＃14AWG ), 2.5mm2 (close to ＃13AWG ) and 4mm2 (close to ＃11AWG )conductor sizes.

Part No.2972

Part No.3103

Part No.2919

Part No.2921

Part No.3104

Part No.2941

Part No.
No. of Conductor

2972

2921

4mm
(#12AWG)

2mm(#15AWG)

2.5mm(#14AWG)

2

2

Conductor Size
Overall Diameter(mm)(inch)

Core Colors

3103

12φ

(0.472")Black/Red

2

10.5φ

(0.413")

3104

4

2

11.3φ

(0.445")4mm(#12AWG)
2

14.5φ(0.571")

Brown/Red/Orange/Yellow

2919

2941

6

8

2.5mm
(#14AWG)
2

12.5φ(0.492")15.7φ(0.618")

Black/Brown/Red
Black/Brown/Red
Orange/Yellow/Green
Orange/Yellow/Green
Blue/Purple■ 4-conductor type is also applicable for standard 2-conductor speaker cable by quad-connection.

■ 2972 is designed to be 2mm2 which is ideal conductor size where it is necessary to combine two conductors(quad-connection) to fit a 3.5mm2 crimp terminal.

30

SPEAKER CABLES
SUPERFLEXIBLE STUDIO SPEAKER CABLESSPECIFICATIONS AND CHARACTERISTICS
Configuration

Part No.
No. of Conductor
Conductor

DetailsSize

Insulation Ov. Dia. (mm)Ov.Dia. (mm)Jacket

DC Resistance (20℃)
Inductance (20℃, 1kHz)(Refer to the figures shown inthe capacitance data.)

Capacitance (20℃)

3103

3104

4

1
3

4

2

2

1

1
3

2

COMMON SPECS.

Standard

3104

4

2

4

7/26/0.12 OFC (bare)

7/50/0.12 OFC (bare)

2.05mm2 ( #15AWG )3.96mm2 ( #12AWG)

3.2φ(0.126"φ) PVC

4.5φ(0.177"φ) PVC

10.5φ(0.413"φ)12.0φ(0.472"φ)1-2
1-3Frequency

20kg

1-2

100Hz

31kg

0.005Ω/m (0.0015Ω/Ft)

0.6μH/m(0.18μH/Ft)

0.7μH/m(0.21μH/Ft)
0.7μH/m(0.21μH/Ft)

130pF/m(39.7pF/Ft)

14.5φ(0.571"φ)Flexible PVC, Matte Black17kg

0.0088Ω/m (0.0027Ω/Ft)

1kHz

10kHz

0.6μH/m(0.18μH/Ft)
0.6μH/m(0.18μH/Ft)

50kHz

100kHz

100pF/m(30.5pF/Ft)

81pF/m(24.7pF/Ft)

74pF/m(22.6pF/Ft)

71pF/m
(21.7pF/Ft)

63pF/m(19.2pF/Ft)

57pF/m
(17.4pF/Ft)

56pF/m(17.1pF/Ft)

1-3

110pF/m(33.6pF/Ft)

79pF/m(24.1pF/Ft)

1-2

106pF/m(32.3pF/Ft)

93pF/m(28.4pF/Ft)

83pF/m(25.3pF/Ft)

76pF/m(23.2pF/Ft)

74pF/m(22.6pF/Ft)

1-2

110pF/m(33.6pF/Ft)

99pF/m(30.2pF/Ft)

86pF/m(26.2pF/Ft)

78pF/m(23.8pF/Ft)

76pF/m(23.2pF/Ft)

1-3

Voltage Breakdown
Insulation Resistance
Emigration of Jacket Material
Applicable Temperature
Roll Sizes

3103

Material

Weight per 100m (328Ft) roll

2972

2972

90pF/m(27.5pF/Ft)

78pF/m(23.8pF/Ft)

67pF/m(20.4pF/Ft)

61pF/m
(18.6pF/Ft)

59pF/m(18.0pF/Ft)

Must withstand at DC 500V/ 15sec.
104 MΩ・m Minimum at DC 125 V, 20℃
Non-Emigrant to ABS resin-20℃~+70℃(-4°F~ +158°F )2972

3103/3104

100m ( 328Ft ) /300m ( 984Ft )100m ( 328Ft ) /250m (820 Ft )UL13 CL2X 75℃

Remarks: Connecting the conductors as diagonal pairs greatly reduces mutual inductance, even thoughcross-talk interferance is negligible.

31

SPEAKER CABLES
SUPERFLEXIBLE STUDIO SPEAKER CABLESSPECIFICATIONS AND CHARACTERISTICS
Configuration

Part No.

2921

No. of Conductor
Conductor

468

2.53mm2 ( #14AWG)

Size

3.4φ(0.134"φ) PVC

Ov.Dia. (mm)11.3φ(0.445"φ)12.5φ(0.492"φ)15.7φ(0.618"φ)

18kg

26kg

38kg

Flexible PVC, Matte Black

Material

Weight per 100m (328Ft) roll
DC Resistance (20℃)
Inductance(20℃, 1kHz)(Refer to the figures
shown in the capaci‐tance data.)

2941

7/32/0.12 OFC (bare)

Details

Insulation Ov. Dia. (mm)Jacket

2919

1-2
1-3

0.5μH/m(0.15μH/Ft)
0.6μH/m(0.18μH/Ft)

0.008Ω/m Typ. (0.0024Ω/Ft)

0.5μH/m(0.15μH/Ft)
0.6μH/m(0.18μH/Ft)

0.5μH/m(0.15μH/Ft)
0.6μH/m(0.18μH/Ft)

0.7μH/m(0.21μH/Ft)

1-4

0.7μH/m(0.21μH/Ft)
0.8μH/m(0.24μH/Ft)

1-5
Capacitance(effective value) (20℃)

2921

2919

6
5

2941

1

4

3
1
4

2

Frequency
1-2
1-3
1-2

2
3

1-3
1-4
1-2

1 2
8
3
7
4
6 5

COMMON SPECS.

1-3
1-4
1-5

Voltage Breakdown
Insulation Resistance
Emigration of Jacket Material
Applicable Temperature
Roll Sizes
Standard

100Hz

1kHz

10kHz

50kHz

100kHz127pF/m(38.7pF/Ft)

110pF/m(33.6pF/Ft)

101pF/m(30.8pF/Ft)

92pF/m(28.1pF/Ft)

90pF/m(27.5pF/Ft)

126pF/m(38.4pF/Ft)

102pF/m(31.1pF/Ft)

87pF/m(26.5pF/Ft)

80pF/m(24.4pF/Ft)

78pF/m(23.8pF/Ft)

102pF/m(31.1pF/Ft)

94pF/m(28.7pF/Ft)
82pF/m(25.0pF/Ft)
113pF/m(34.5pF/Ft)
77pF/m(23.5pF/Ft)
68pF/m(20.7pF/Ft)
93pF/m(28.4pF/Ft)

89pF/m(27.1pF/Ft)

72pF/m
(22.0pF/Ft)
62pF/m(18.9pF/Ft)
100pF/m(30.5pF/Ft)
67pF/m(20.4pF/Ft)
60pF/m(18.3pF/Ft)
81pF/m(24.7pF/Ft)

89pF/m(27.1pF/Ft)

61pF/m
(18.6pF/Ft)
52pF/m(15.9pF/Ft)
90pF/m(27.5pF/Ft)
61pF/m
(18.6pF/Ft)
54pF/m(16.5pF/Ft)
74pF/m(22.6pF/Ft)

74pF/m(22.6pF/Ft)

56pF/m(17.1pF/Ft)
48pF/m
(14.6pF/Ft)
84pF/m(25.6pF/Ft)
56pF/m(17.1pF/Ft)
50pF/m(15.3pF/Ft)
69pF/m
(21.0pF/Ft)

71pF/m
(21.7pF/Ft)

55pF/m(16.8pF/Ft)
46pF/m
(14.0pF/Ft)
80pF/m(24.4pF/Ft)
55pF/m(16.8pF/Ft)
49pF/m(14.9pF/Ft)
67pF/m(20.4pF/Ft)

Must withstand at DC 500V/ 15sec.
104 MΩ・m Minimum at DC 125 V, 20℃
Non-Emigrant to ABS resin ABS-20℃~+70℃ (-4°F~ + 158°F )100m ( 328Ft ) /153m (500 Ft )/300m ( 984Ft )UL13 CL2X 75℃

Remarks: Connecting the conductors as diagonal pairs greatly reduces mutual inductance, even thoughcross-talk interferance is negligible. For 8-cond. version P/N 2941, connect it as close as todiagonal combination.

32

VIDEO CABLES & HIGH FREQUENCY COAXIAL CABLESSUBMINIATURE & MINIATURE COAXIAL CABLES
Part No.2381

abs〔Z〕ohm
300

arg〔Z〕 rad
0200Part No.3351

100

1000 10000
freq. KHZ

abs〔Z〕ohm
600
400
200
0
10

Part No.2895

100

1000 1e+04
freq. KHZ

abs〔Z〕ohm
400

-1
10

0.01
100

1000 10000
freq. KHZ

100

1000 1e+04
freq. KHZ

Part No.2546

abs〔Z〕ohm
300

Part No.3200

100

1000 1e+04
freq. KHZ

abs〔Z〕ohm
100

100

1000 1e+04
freq. KHZ

100

100

1000 1e+04
freq. KHZ

-1
100.00011000 10000
10freq. KHZ

100

1000 10000
freq. KHZ

100

1000 1e+04
freq. KHZ

atten. rad/m
1100

atten. nepar/m
0.01

0.00011000 1e+04
10
freq. KHZ

phase. rad/m
1
0.1
0.01
0.001

100

1000 1e+04
freq. KHZ

0
10

100

atten. nepar/m
0.006

100

1000 1e+04
freq. KHZ

100

1000 1e+04
freq. KHZ

phase rad/m
1
0.01

0.002
0
10

0.0001
101000 1e+04
freq. KHZ

0.1

0.004

-0.5

100

phase rad/m
1

0.001

0.005

arg〔Z〕rad01501000 1e+04
freq. KHZ

0.1

-0.6
-0.8
1000 1e+04
10
freq. KHZ

100

0.01

0.002

100

1000 1e+04
freq. KHZ

0.001
10

0.001

0.004

0
10

phase rad/m
1

0.1

0.2

abs〔Z〕ohm
200

50
10

-1
10

1000 10000
freq. KHZ

0.01

atten. nepar/m
0.006

-0.4

60

Part No.2964

1000 10000
freq. KHZ

arg〔Z〕rad
0

80

40
10

100

-0.5

100

100

0.005
0
10

100

0.01

0.01

arg〔Z〕rad
0

200

0
10

-1
10

0
10

0.001
10
1000 10000
freq. KHZ

0.1

atten. neper/m
0.015

100
1000 10000
freq. KHZ

100

0.01

-0.5

100

0.01

-0.5

300

0
10

0
10

atten. neper/m
0.02

arg〔Z〕 rad
0

200

0.1

arg〔Z〕 rad
0

-1
10

phase rad/m
1

0.02

-0.5

100
010

atten. neper/m
0.03

0.001

100

0.00011000 1e+04
10
freq. KHZ

100

1000 1e+04
freq. KHZ

Superflexible subminiature coaxial cables which cannot be found out in MIL, JIS and other worldwide
popular standards. Standardized coaxial cables are available from any cable manufacturer so that yourchoice is determined by competitive price, which means there is no chance for a Japanese cablemanufacturer in the world market. However, there are lots of cases where those standard cables will not
do the job. MOGAMI superflexible subminiature coaxial cables may have a chance in such case. All
these coaxial cables were also originally made for custom applications and remained long thereafter
finding unfixed multiple users all over the world.

33

HIGH FREQUENCY COAXIAL CABLESSUBMINIATURE & MINIATURE COAXIAL CABLES

CABLE SPECIFICATIONSPart No.

Characteristic Impedance

Details

Conductor

Size

Insulation

Ov. Dia . (mm)Shield

3351

2895

2546

3200

2964

50Ω

75Ω

75Ω

75Ω

50Ω

75Ω

17/0.08A

7/0.14A

50/0.12 OFC

20/0.12 OFC

1/0.10 Copper Plated 0.20mm CopperPiano Wire
Covered Steel Wire
6/0.10A Served Cond.

0.047mm2 (#32AWG) 0.0314mm2(#33AWG) 0.085mm2 (#28AWG) 0.107mm2 (#27AWG) 0.565mm2 (#20AWG) 0.226mm2 (#24AWG)

0.9φ(0.035")

1.3φ(0.051")

Material

XLPE

Type

SERVED

Details

Approx. 30/0.10A Approx. 50/0.08A

Ov. Dia . (mm)Jacket2381

1.6φ(0.063")

1.7φ(0.067")

1.95φ(0.077")

XLCPE

CPE

Roll Sizes

XLCPE

16/5/0.10A

16/4/0.12A

Approx. 66/0.12 OFC, Approx. 72/0.12 OFC

3.0φ(0.118")

3.3φ(0.130")

4.8φ(0.189")

2.0φ(0.0787")

PVC
Black

Colors305m (1,000Ft )1.5kg

2.65φ(0.104")

Double Served Shield

BRAIDED

Material

Weight Per 305m (1,000Ft ) Roll

2.6φ(0.102")

Gray

153m (500Ft )/305m (1,000Ft )305m (1,000Ft )

4.2kg

2.1kg

Black

Black/Red/Yellow/
Green/Blue

50m (164Ft )/100m(328Ft)/200m(656Ft)

5.0kg

3.6kg /100m(328Ft)

3.4kg /100m(328Ft)

2546

3200

2964

ELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.
DC Resistanceat 20℃

2381

3351

2895

Inner Cond.

0.4Ω/m (0.12Ω/Ft )1.6Ω/m (0.49Ω/Ft )0.22Ω/m (0.067Ω/Ft )Shield

0.079Ω/m (0.024Ω/Ft ) 0.08Ω/m (0.024Ω/Ft ) 0.035Ω/m (0.011Ω/Ft ) 0.03Ω/m (0.009Ω/Ft ) 0.012Ω/m(0.0037Ω/Ft ) 0.012Ω/m(0.0037Ω/Ft )Capacitance at 1kHz, 20℃
Characteristic Imperdance at 10MHz

Attenuation (10MHz )Phase Constant (10MHz )102pF/m (31.1pF/ Ft ) 68pF/m (20.7pF/ Ft ) 58pF/m (17.7pF/ Ft )62pF/m (18.9pF/ Ft )95pF/m(29.0pF/ Ft )57pF/m(17.4pF/ Ft )50Ω±10%75Ω±10%75Ω±10%75Ω±10%50Ω±10%75Ω±10%0.15 dB /m(0.046 dB /Ft )0.11 dB /m(0.033 dB /Ft )0.069 dB /m(0.021 dB /Ft )0.051 dB /m(0.016 dB /Ft )0.058dB /m(0.018 dB /Ft )0.047 dB /m(0.014 dB /Ft )0.38rad / m

0.33rad / m

0.28rad / m

0.30rad / m

0.31rad / m

0.3rad / mElectromagnetic Noise＊
Voltage Breakdown

LOD (Limit of Detection)
Must withstand at DC 500V/15sec.

Insulation ResistanceFlex Life＊

Tensile Strength

AC 500V/60sec.

Must withstand at DC 500V/15sec.

10 MΩ・m Min . at DC 250V , 20℃
4

21,000 cycles

14,000 cycles

8,400 cycles

8,600 cycles

12,000 cycles

16,000 cycles

68 N

95 N

196 N

205 N

343 N

274 N

-

-

Emigration

Non-Emigrant to ABS resin

Applicable TemperatureStandard

0.18Ω/m (0.055Ω/Ft ) 0.035Ω/m(0.011Ω/Ft ) 0.083Ω/m(0.025Ω/Ft )-20℃~ +60℃ (-4°F~+140°F )--UL 1354 AWM VW-1 30V 60℃

Attenuation : 1 dB = 0.1151 neper (1 neper = 8.686 dB )＊Using standard testing method of Mogami Wire & Cable Corp .

34

HIGH FREQUENCY COAXIAL CABLES

75Ω COAX. PARALLEL MULTICORE CABLES
The dual 75 ohm parallel "zip style" 2947 was originally developed to maintain maximum video performance while fitting thevery compact 4 pin mini-Din (S-video) connector. Success inthis challenging project required Mogami's highly experienced
design and extremely precise manufacturing technique.
Because this small cable is excellent for audio and video, two(2947) three (3243) and four (3294) conductor versions of thiscable are now available to meet market demands in home andindustrial audio-video, law enforcement, medical imaging, andsecurity environments.

Part No.2947

Part No.3243

CABLE SPECIFICATIONS
Configuration

Part No.
Core Configuration

2947

3243

2×75Ω Coax.

3×75Ω Coax.

Conductor Size

0.126mm2 ( #27AWG )Shield StructureServed Shield

Material

JacketFlexible PVC
2×3.0φ(0.118")

Ov. Dia . (mm)Color

3×3.0φ(0.118")
Black

Roll Sizes

153m/305m (500Ft /1,000Ft )153m (500Ft )

4kg

6.1kg

Weight Per 153m ( 500Ft ) Roll

ELECTRICAL & MECHANICAL CHARACTERISTICS
2947

Part No.
DC Resistance

Inner Cond.

at 20℃

Shield3243

0.15Ω/ m (0.046Ω/ Ft )0.035Ω/ m (0.011Ω/ Ft )59pF/ m (18.0 pF/ Ft )Capacitance at 1kHz, 20℃

75Ω±5%

Characteristic Impedance at 10MHz

0.061dB / m (0.019 dB / Ft )Attenuation (10MHz )0.28 rad / m
LOD (Limit of Detection)

Phase Constant (10MHz )Electromagnetic Noise＊Must withstand at DC 500V/15sec .

Voltage Breakdown

104MΩ・m Min . at DC 500V , 20℃

Insulation ResistanceFlex Life＊

24 ,000 cycles
392 N

Tensile Strength

28 ,000 cycles
530 N

Non-Emigrant to ABS resin

Emigration-20℃ ~ +70℃ (-4°F~ +158°F)

Applicable Temperature

Attenuation : 1 dB =0.1151 neper (1 neper =8.686 dB )＊ Using standard testing method of Mogami Wire & Cable Corp .
atten.neper/m

arg〔Z〕radabs〔Z〕
ohm

0300

phase rad/m
1

0.01

0.1

200

0.01

0.005

-0.5
100

35

0
10

0.001

100

1000

1ｅ+04
freg. KHZ

-1
10

100

1000

1ｅ+04
freg. KHZ

0
10

100

1000

1ｅ+04
freg. KHZ

0.0001
10

100

1000

1ｅ+04
freg. KHZ

HIGH FREQUENCY COAXIAL CABLESMOLDED Y/C CABLE ASSEMBLY WITH 4-PIN MINI DIN CONNECTORSPart No.5139
ASSEMBLY

Part No.
Length ( m )5139-035139-06

5139-125139-205139-30

5139-505139-75

0.9m

1.8m

3.6m

6.1m

9.1m

15.2m

22.8m

( 3 Ft )( 6 Ft )( 12 Ft )( 20 Ft )( 30 Ft )( 50 Ft )5139-100
30.5m( 75 Ft )( 100 Ft )MONITOR CABLE
Specifically designed as a miniature video monitor
cable, it can be easily connected to a rectangular8-pin connector.

Part No.2326
CABLE SPECIFICATIONSPart No.
Core Configuration
Conductor Size
Ov. Jacket Material
Ov. Dia . (mm)Color
Roll Size
Weight per 200m (656Ft ) Roll

2326
4×50Ω Coax.
0.047mm2 (#32AWG )Flexible PVC
6.0φ(0.236”)
Dark Gray
200m (656Ft )8.3kg

ELECTRICAL & MECHANICAL CHARACTERISTICS
DC Resistance at 20℃

Inner Cond.
Shield

0.4Ω/m (0.122Ω/Ft )0.079Ω/m (0.024Ω/Ft )102pF/m (31.1pF/ Ft )50Ω±5%

Capacitance at 1kHz, 20℃
Characteristic Impedance at 10MHz
Attenuation at 10MHz
0.2dB/m ( 0.061 dB /Ft )Velocity Ratio
0.63
Electromagnetic Noise＊
LOD (Limit of Detection)
Voltage Breakdown
Must withstand at DC 500V/15sec .
104 MΩ・m Min . at DC 500V , 20℃
Insulation Resistance
6,500 cycles
Flex Life＊
Tensile Strength
294 N
Non-Emigrant to ABS resin
Emigration
Applicable Temperature-20℃ ~ +70℃ (-4°F~+158°F )＊ Using

standard testing method of Mogami Wire & Cable Corp .

abs〔Z〕ohm
300
200

-0.5

100
0
10

arg〔Z〕rad0

100 1000 10000
freg. KHZ-1
10100 1000 10000
freg. KHZ

atten. neper/m
0.03

phase rad/m
1

0.02

0.1

0.01

0.01

0
10

100 1000 10000
freg. KHZ

0.001
10

100 1000 10000
freg. KHZ

36

HIGH FREQUENCY COAXIAL CABLES

MULTICORE 75Ω COAXIAL CABLES

Part No.3145

Part No.3158

Multicore 75Ω coaxial cables used for HD TV RGB signal, VGA and CRT drive etc. are available in two
versions. One small overall diameter version to meet shrink Dsub 15P connector and another large overall
diameter version with less attenuation for longer runs offer the following outstanding features.
■ Because of used XLCPE (Cross-Linked Cellular polyethylene) insulation, despite its compact overall diameter, lower
attenuation value is realized. To reach the same attenuation level by regular solid PE insulated coax. cable, its overall
diameter has to become more than 50% larger. Also, cross-linking makes this insulation more durable against
soldering heat.

■ All versions have featured MOGAMI flexibility so that they are convenient for handling, and its unique served (spiral)shielding construction and stranded center conductor helps easier wiring and installation.

■ Medium overall diameter version is comprised of MOGAMI standard #2964 (75Ω audio video cable), and one touchPush-Pull BNC male connector specifically designed for #2964 cable is available so that your own original cable
assembly and instant procurement from standard cable assemblies are both available.

Note : Two items in Miniature type（Part No.3146〜3147）are available only on order made production becauseof small demand.

Part No.

Roll Sizes?

77m/153m(250Ft/500Ft)

Ov.Dia.

Cores(Approx. mm)

3147

3

8.0 (0.315")

3146

4

8.9 (0.350")?

9.8 (0.386")

14.8

3145

37

Weight(Kg/153m)(Kg/500Ft)

Nos. of5

Weight(Kg/100m)(Kg/328Ft)

Roll Sizes

14.0 (0.551")

18

10m/20m/30m/

15.5 (0.610")25

40m/50m/

17.5 (0.689")

33

100m/300m

Nos. of

Ov.Dia.

Cores(Approx. mm)

3156

3

3157

4

Part No.

3158

5

HIGH FREQUENCY COAXIAL CABLES
MULTICORE 75Ω COAXIAL CABLES
3145

abs〔Z〕 ohm

3158

arg〔Z〕 radabs〔Z〕 ohm

0

300
200

010

100

-1

1000 10000
freq. KHZ

atten. neper/m

10

100

100

0.00011000 10000
freq. KHZ

101000 10000
freq. KHZ

1

0.01
0.001

0

1000 10000
freq. KHZ

100

0.1

0.002
100

10

phase rad/m

0.004

0.001

-1

1000 10000
freq. KHZ

0.006

0.01

10

100

atten. neper/m

0.1

0

010

1000 10000
freq. KHZ

1

0.005

-0.5

100

phase rad/m

0.01

0

200

-0.5

100

arg〔Z〕 rad

300

10

100

0.00011000 10000
freq. KHZ

101001000 10000
freq. KHZ

CABLE CORE SPECS (COMMON SPECS)
Type
Conductor

Insulation

MINIATURE MULTI 75Ω COAX. CABLE

MEDIUM SIZE MULTI 75Ω COAX. CABLE

Details

7/0.18A(7×#33AWG)

20/0.12 OFC

Size

0.178mm 2 (#25AWG)

0.226mm2 (#24AWG)

Ov. Dia. (mm)Overall Shield

XLCPE (Cross-Linked Cellular Polyethylene)Type

SERVED

Double Served Shield

Approx.66/0.12OFC / Approx.72/0.12OFC

Approx.70/0.10A

Details

Jacket2.6φ(0.102")2.3φ(0.091")

Material

4.8φ(0.189 ")2.9φ(0.114")

Ov. Dia. (mm)Material

PVC

ELECTRICAL & MECHANICAL CHARACTERISTICSTypeMINIATURE MULTI 75Ω COAX. CABLE

DC Resistance at 20℃

Inner Cond.
ShieldCapacitance at 1kHz, 20℃

0.012Ω/m(0.0037Ω/Ft)

0.035Ω/m(0.011Ω/Ft)

60pF/m(18.3 pF/Ft)

60pF/m(18.3 pF/Ft)

75Ω±10％0.050dB/m (0.015dB/Ft)

0.058dB/m (0.018dB/Ft)

Phase Constant (10MHz)
Electromagnetic

0.083Ω/m(0.025Ω/Ft)

0.104Ω/m(0.032Ω/Ft)

Characteristic Impedance at 10MHz
Attenuation (10MHz)

MEDIUM SIZE MULTI 75Ω COAX. CABLE

Noize ＊LOD (Limit of Detection)

Voltage Breakdown
Insulation ResistanceFlex Life of Inside Core＊
Tensile Strength per Core

0.29rad/m

0.30rad/m

Must withstand at AC 500V/60sec.

10 4 MΩ・m Min. at DC 250V , 20℃

4,100 cycles

16,000 cycles

186 N

Emigration
Applicable TemperatureStandard

274 N

Non-Emigrant to ABS resin-20℃〜+70℃ (-4°F〜+158°F )60℃

UL 20002 AWM 30V VW-1
Attenuation：1dB＝0.1151 neper (1 neper=8.686 dB)＊ Using standard testing method of Mogami Wire & Cable Corp.

38

HIGH FREQUENCY COAXIAL CABLES

NO TWIST REQUIRED!

PUSH-PULL BNC CABLE ASSEMBLIES
Only available combination of Mogami & Tajimi. Both have supplied high quality
products, and for the first time ever, have now introduced cable assemblies that are
perfect for field engineers. This cable is a dream come true for those withprofessional analog and digital video applications. Available in both 50Ω & 75Ω.
One Touch “Push-Pull” locking mechanism is markedly effective in high density patch panels, considerably reduces
installation time, and perfect for applications requiring frequent connection and disconnection.

39

HIGH FREQUENCY COAXIAL CABLES
50Ω/75Ω BNC CONNECTOR SPECIFICALLY DESIGNED FOR P/N 3200/2964 COAXIAL CABLE
It is our pleasure to be able to provide our customers
with REAL "ONE TOUCH PUSH-PULL BNC Connector"
by TAJIMI specifically designed for MOGAMI P/N 3200＆
2964 cables. This very innovative and handy BNC canbe combined with varied cables from single 50Ω＆75Ω
coaxial cables in five colors up to complexed five core
RGB cables. Not only available in raw cables andconnectors independently as well as standard length
cable assemblies, but also custom length with various
connector combinations are made to order.

■ Quick and reliable ONE TOUCH LOCK " PUSH-PULL" connection suitable for dense panel, fast installation andfrequent connection and removal.

■ Equivalent connection strength to conventional BNC, realized by innovative rotary mechanism.

■ Durable 75Ω BNC against gouge strength, reinforced by newly developed open part of the shield contact structure
and the fixed structure of the center pin terminal.

■ Reliable high frequency characteristics with MOGAMI standard superflexible light weight cable assured for 1.2
V.S.W.R. up to 1GHz and acceptable to be bent up to 10mm ( 0.4") as the minimum radius of curvature.

■ Both solder type and crimp type are available. However, we basically recommend solder type for field use because

strength of cable clamp becomes too weak in case of crimp type resulted by the very feature of flexiblity of MOGAMI
cable. We can assure the cable retention strength only up to 98 N in case of crimp type, while up to 147 N can beassured in case of solder type. Therefore, all of our standard cable assemblies are made of solder type.

■ Available in colors :50Ω BNC CONNECTOR : BLACK ONLY

75Ω BNC CONNECTOR : 6 colors (BLACK・RED・YELLOW・GREEN・BLUE・WHITE)

50Ω

Characteristic Impedance
TypePart No.

75Ω

SOLDER TYPECRIMP TYPESOLDER TYPECRIMP TYPE

BNC-3200

BNC-3200C

BNC-2964-�

BNC-2964C-�

Add register color code in □Example : P/N BNC-2964-6 means BLUE

Color
Code No.

BLACK

RED

0

2

YELLOW GREEN BLUE

WHITE

5

9

4

6

40

HIGH FREQUENCY COAXIAL CABLESTERMINATIONS

29.1

φ14.9

Part No.
BNC-TNT-50
BNC-TNT-50S
BNC-TNT-75
BNC-TNT-75S

Frequency Range

Impedance

Color

50Ω

White

Rating

W/Out String
DC 〜 2GHz

75Ω

OptionV.S.W.R. under 1.2

Yellow

With String

1／4W

W/Out String
With String

STANDARD CABLE ASSEMBLIES AVAILABLE FROM STOCKLENGTH■ BNC to BNCPart No. 品番

BB-01

BB-02

BB-03

BB-06

BB-10

BB-16

BB-25

BB-33

BB-50

BB-66

BB-100

長さ

1Ft
0.3m

2Ft
0.6m

3Ft
0.9m

6Ft
1.8m

10Ft
3.0m

16Ft
4.8m

25Ft
7.6m

33Ft
10.0m

50Ft
15.2m

66Ft
20.1m

100Ft
30.5m

LengthCable : Part No. 2964 Standard Color : Black・Red・Yellow・Green・Blue■ BNC to RCA
LENGTHPart No.

BR-03

BR-06

BR-10

BR-16

Length

3Ft
0.9m

6Ft
1.8m

10Ft
3.0m

16Ft
4.8m

Cable : Part No. 2964 Standard Color : Black■ 3×BNC to 3×BNC(Remarks : 3 and 4 core types are available on only order made, not standard stock item. )LENGTH

30cm

Part No.

3B3B-02

3B3B-03 3B3B-05 3B3B-08 3B3B-10 3B3B-15

3B3B-20 3B3B-30

Length

6.55Ft2m

9.83Ft3m

65.5Ft20m

30cm■ 4×BNC to 4×BNC
LENGTH

16.3Ft5m

26.2Ft8m

32.7Ft10m

49.1Ft15m

98.3Ft30m

Cable : Part No. 3156
Part No.

4B4B-02

4B4B-03 4B4B-05 4B4B-08 4B4B-10 4B4B-15

4B4B-20 4B4B-30

Length

6.55Ft2m

9.83Ft3m

65.5Ft20m

16.3Ft5m

26.2Ft8m

32.7Ft10m

49.1Ft15m

98.3Ft30m

Cable : Part No. 3157

30cm

■

30cm

Part No.

5B5B-02

5B5B-03 5B5B-05 5B5B-08 5B5B-10 5B5B-15

5B5B-20 5B5B-30

Length

6.55Ft2m

9.83Ft3m

65.5Ft20m

5×BNC to 5×BNC

16.3Ft5m

26.2Ft8m

32.7Ft10m

49.1Ft15m

98.3Ft30m

Cable : Part No. 3158

LENGTHNOTE : Customised cable Assembly is available to special order. Please refer to Page 6 and
30cm

41

30cm

Page 26

in our general catalogue and or consult your MOGAMI distributor.

HIGH FREQUENCY COAXIAL CABLESCONNECTOR SPECIFICATIONSOLDER TYPECRIMP TYPE

φ14.9

10
WRENCH FLATS（Dimension in mm）

41.0

φ14.9

36.8

CONSTRUCTION
Part No.

BNC-3200

BNC-3200C

BNC-2964-□

BNC-2964C-□TypeSOLDER TYPECRIMP TYPESOLDER TYPECRIMP TYPE

Coupling Ring

Nylon W/Glass Fiber

Nylon W/Glass Fiber

Rotary Shell

Nickel Plated Phosphor Bronze

Nickel Plated Phosphor Bronze

Shell
Clamp Shell
Center Terminal

Nickel Plated Brass

Nickel Plated Brass
Silver Plated Brass

Silver Plated Brass

Gold Plated Brass

Gold Plated Brass

PTFE

PTFE

Insulation
FeruleTin Plated Copper

Nut

Tin Plated Copper
Silver Plated Brass

SpacerNickel Plated Brass

Nickel Plated Brass
Chloroprene

SleeveCHARACTERISTICS
Part No.

BNC-3200

BNC-3200C

BNC-2964-□

BNC-2964C-□TypeSOLDER TYPECRIMP TYPESOLDER TYPECRIMP TYPE

Voltage Rating

AC 500Vrms

AC 500Vrms

Dielectric Withstanding Voltage

AC 1,500Vrms at sea level

AC 1,500Vrms at sea level

Insulation Resistance

1,000 MΩ Min. at DC 500V

1,000 MΩ Min. at DC 500V

Contact Resistance5mΩ Max. at DC 1A

5mΩ Max. at DC 1A

Characteristic Impedance
V.S.W.R.
Minimum Acceptable Radiusof Curvature of Used Cable

1.2 Max. DC ~1GHz

1.2 Max. DC ~1GHz

10mm (0.4")10mm (0.4")

Cable Retention

196 N (44 lbf) Min.

Withstanding Vibration

98m/S2 (10G),10〜500Hz (JIS C5402 6.1 )Connector Durability
Applicable TemperatureStandard

TOOLS

75Ω

50Ω

Crimp ToolCWB-T0276/T0277

117 N (26 lbf) Min.

147 N (33 lbf) Min.

98 N (22 lbf) Min.

98m/S2 (10G) , 10〜500Hz (JIS C5402 6.1 )1,000 times Min.

1,000 times Min.

-40℃〜+85℃ (85%RH Max.)-40℃〜+85℃ (85%RH Max.)IEC 169-8/MIL-C-39012

IEC 169-8/MIL-C-39012

Attach and Detach Connecting Tool
T90-2842

VIDEO CABLESCOMPLEXED COAX. (VIDEO CAMERA) CABLES

Part No.2673

Part No.2537

Part No.3027

Part No.2859

Part No.2543

Many variations of video camera cables which were originally developed for respective customers'
requirements (as each camera needed a different specification) when the camera and the recorderwere separated, these cables remained as a kind of standard stock item with some demand formaintenance and new and different applications in the international world wide market. Some video
camera cables are of course applicable to professional cameras, and feature the same flexibility
and compact size as other MOGAMI cables. Most of these cables are often comprised of 50Ω
coaxial cable cores to make them as miniature as possible (of course it naturally becomes flexible),
because the wave length of video signal is rather long (20m / 66Ft ) the reflection ( impedancemismatch) problem does not become critical as long as it is used within this length (within one
whole wave length) so that compactness and flexibility can be a benefit without any anxiety.
However, for interconnection longer than 20m ( 66Ft ) or when attenuation is of importance, strictly
adjusted 75Ω coaxial cable with larger conductor size must be used. Finally, video camera cables
are destined to be discontinued as their demand decreases, therefore, please ask our distributor
for its availability before you make a decision on its application.

43

VIDEO CABLESCOMPLEXED COAX. (VIDEO CAMERA) CABLES

CABLE SPECIFICATIONSPart No.
Core Configuration

2673

2537

2543

1×50Ω COAX. (＃28AWG)

1×75Ω COAX. (＃28AWG)

4×50Ω COAX. (＃32AWG)

1×Power (＃22AWG)

2×Power (＃16AWG)

2×40Ω COAX. (＃28AWG)

2×Unbalanced (＃24AWG)

1×Signal (＃26AWG)

3×Power(＃22AWG)

2×Signal (＃28AWG)

Overall Shield
Ov. Jacket

Standard

Served (＃16AWG)

Unshielded

Material

Ov. Dia.(mm)Color

Flexible PVC
5.9φ(0.232")

9.0φ(0.354")

7.6φ(0.299")
Dark Gray

Black

─

UL 20002 AWM VW-1 30V 60℃

Emigration

Non-Emigrant to ABS resin

Applicable Temperature-20℃~+70℃(-4°F~+158°F )Roll Size

153m ( 500Ft )Weight Per 153m(500Ft) roll

8.7kg

16kg

3027

2859

1×75Ω COAX. (＃26AWG)

2×75Ω COAX. (＃28AWG)

1×Power (＃18AWG)

1×Balanced (＃28AWG)

9.7kg

CABLE SPECIFICATIONSPart No.
Core Configuration

4×40Ω COAX. (＃26AWG)

2×Power (＃18AWG)

1×Power (＃20AWG)

2×Signal (＃24AWG)

6×Signal (＃26AWG)

Overall Shield
Ov. Jacket

Standard

1×50Ω COAX. (＃28AWG)

3×Signal (＃26AWG)

BraidedMaterial

Ov. Dia.(mm)Color

Emigration

Applicable Temperature

Flexible PVC
11.6φ(0.457")

11.0φ(0.433")

Dark GrayBlack

UL 20124 AWM VW-1 30V 60℃
Non-Emigrant to ABS resin-20℃~+70℃(-4°F~+158°F )Roll Size

Weight Per 153m(500Ft) roll

153m ( 500Ft )
33kg

27kg

More detailed specification or characteristics of the used inside cores are not included in this catalogue as
it is not economical compared with the size of the market for these items. In case of necessity, please ask
our distributor for extended detailed core specifications.

44

DIGITAL INTERFACE CABLES
MIDI SYNCHRO CABLE ASSEMBLIES

SingleDual

MOGAMI MIDI SYNCHRO CABLE ASSEMBLIES are specially designed for use with the MusicalInstrument Digital Interface (MIDI) communication system.
Applications include the latest MIDI patchbays, and interconnection between MIDI equipment and MIDI
served musical instruments. These outstanding professional cables offer the following features:■ SINGLE and DUAL MIDI CABLES are both available from standard stock. NEW DUAL MIDI CABLES are
designed for compact wiring and prevent connection errors when using both Midi-Out and Midi-In ports
simultaneously.

■ One piece molded 5pin Din connectors.

■ Elegant desigh two stage molding for easy handling, reliability and long life.

■ Specially designed, superflexible cable with four #25AWG copper conductors and served (spiral ) shield.
■ Attractive, durable, satin black rubber like PVC jacket.

■ Fast, accurate transmission of MIDI signal via a twisted pair for better electromagnetic noise rejection.
■ Additional two pins wired for tape synchro signal.

■ Interchangeable color rings for easy patch cord identification.

■ Bulk cable also available in 50m (164Ft ) ,100m (328Ft ) rolls and 200m (656Ft ) spools .

Single Cable

Part No. 2948

Dual Cable

Part No. 3033

LENGTHPart No.
Length45

SingleMIDI-015

MIDI-03

MIDI-05

MIDI-10

MIDI-15

MIDI-20

MIDI-30

Dual

MIDI-015D

MIDI-03D

MIDI-05D

MIDI-10D

MIDI-15D

MIDI-20D

MIDI-30D

18"(1.5' )

3Ft

5Ft

10Ft

15Ft

20Ft

30Ft

45cm

90cm

1.5m

3m

4.5m

6.1m

9.1m

DIGITAL INTERFACE CABLES
MIDI SYNCHRO CABLE ASSEMBLIESSPECIFICATIONS

2948

Cable Part No.

3033

8φ(0.315''φ)15(0.591'')5φ(0.197''φ)47.5(1.87'')
12.5(0.492'')(0.630''φ)
16φ(0.654''φ)
16.6φ

13.6φ
(0.535''φ)9.0(0.354'')

PLUG

Conductor

30/0.08A (30×#40) 0.15mm (#26AWG)

Pins

Silver Plated Brass

Insulation

1.2φ(0.047"φ)PVC(BLACK/WHITE/RED/GREEN)

ShieldNickel Plated Brass2

ShieldApprox.100/0.12A(100× #37)Served Shield

Insulation

Polyacetal Resin

Jacket5.0φ(0.197"φ) Flexible PVC (BLACK)

Molding

Flexible PVC ( Two Stage Molding ) ( BLACK)

Weight8.6kg/200m

15kg/200m

ELECTRICAL & MECHANICAL CHARACTERISTICS
Inner Conductor
ShieldDC Resistance (20℃): 0.12Ω/m (0.037Ω/ Ft ): 0.017Ω/m (0.005Ω/ Ft )Between Twisted Pair : 99 pF/m (30 pF/Ft)
Between Shield and one of Twisted Pair : 182 pF/m (56 pF/Ft)
Between Shield and Synchro Conductor : 180 pF/m (55 pF/Ft)
Between One of Twisted Pair and Synchro Conductor : 91pF/m (28 pF/Ft)

Capacitance(1kHz, 20℃)

Approx. 30mm ( 1.18")

Pitch of Twisted Pair

Electromagnetic Noise＊(10kHz)

0.02~0.06mV
Must withstand at DC 500V/15sec.

Voltage Breakdown
Insulation Resistance (DC 125V, 20℃)

104 MΩ・ m Min.

Tensile Strength ( At Cable-Connector Joint )480 N Min.

Flex Life＊: At the connector strain relief

45,000 Cycles
6,700 Cycles: Cable itself(200gr, Bend radius of the cable stopper : 12.7mm)
Non-Emigrant to ABS resin

Emigration＊ Using standard testing methods of Mogami Wire & Cable Corp.
WIRING DIAGRAM : The MIDI signal is transmitted via a twisted pair ( black and white ) and wired to pins 4 & 5.

2
4
1

5
3

GREEN
SHIELD
RED
WHITE
BLACK

1
2
3
4
5

SYNCHROSHIELDSYNCHROTWISTED PAIR (MIDI)NOTE : Transmission lag in MIDI systems is mainly caused by the speed of the photocoupler and the rise time ofthe driver rather than the transmission characteristics of the cable.

46

DIGITAL INTERFACE CABLES

AES/EBU & DMX CABLES

Part No.3159

Part No.3228

3080-FC FERRITE CORE

Part No.3080

Part No.3173

3080-TBFITTING TUBING FOR ITT CANNON XLR CONNECTOR

All of MOGAMI 110Ω AES/EBU digital audio cables are designed with flexibility and handy configuration.
Many variations are available from regular application type up to long distance application types, from single
core up to 12-core types, internal wiring type, and interconnect application types. Strict tolerance control ofimpedance within ±5% up to ±10% at the maximum. All these are applicable for DMX interconnect.

Part No.

3159

3228

Suggested Maximum applicable length

3080

3135

3173

3160〜3163

150m

300m

150m

492Ft

1,000Ft

492Ft

Part No.3159 is for internal wiring material, Part No.3160〜3163 are multicore cables and other cables are forregular interconnect application. Part No.3228 is compact size, flexible and durable configuration to meet tiny

telephone plug cable clamp, therefore it is recommended for use with rough applications. And, Part No.3173 is
specially designed for long distance application assured over 300m.

However, above suggested maximum applicable length is based on use with any device that meets AES standard
requirement without equalizer. In the case of use with an equalizer, the maximum applicable length can be expand-

ed up to 1.5 times longer than assured length above. We have also prepared CAD program to see the changes of
eye-diagram and transmitted wave form at the receiving end for various working conditions, so you can check it

yourself at http://www.mogami-wire.co.jp/ before purchasing cables. Since AES/EBU digital audio cable is low
capacitance characteristics, it can result in high quality analog audio transmission in general especially for highfrequency range.

Bantam Patch CordLENGTHPart No.

PJD-12

PJD-18

PJD-24

PJD-36

PJD-48

PJD-60PJD-72

Length

12"
30cm

18"
45cm

24"
60cm

36"
90cm

48"
120cm

60"
150cm

72"
180cm

Cable : Part No .3228 standard Color : Black only

47

DIGITAL INTERFACE CABLES
AES/EBU & DMX CABLESSPECIFICATIONS
Configuration

Part No.

3159

3228

3080

3135

No. of Conductor

2

2

2

2

Conductor

DetailsSize（mm2）
Ov. Dia.（mm）Insulation

7/0.20A（7 ×#32AWG）

36/0.08OFC（36×#40AWG）

7/0.18A（7 ×#33AWG）

7/0.18A（7 ×#33AWG）

1.4φ（0.055"）

1.35φ（0.053"）

1.5φ（0.059"）

1.5φ（0.059"）

Ov. Dia.（mm）DetailsSize（mm2）

Served ShieldOv. Dia.（mm）Material

CPP

Red/Clear

Red/Clear

7/0.18TA（7 ×#33AWG）

7/0.18TA（7 ×#33AWG）

20/0.18TA（20×#33AWG）

Flexible PVC

Flexible PVC

Flexible PVC

77m（250Ft）305m（1,000Ft）

300m（983Ft）

2.6Kg/250 Ft Roll

27Kg/300m

Red/White

1.87φ（0.0736"）
LDPE（Clear）

7/0.20A（7 ×#32AWG）
0.22mm2（#24AWG）

Approx. 90/0.10A（Approx.90/#39AWG）
3.3φ（0.130"φ）

Approx. 97/0.10A（Approx.97/#39AWG）
4.8φ（0.189"φ）

Black/Gray

Black

Color

0.178mm2（#25AWG）

0.178mm2（#25AWG）
0.509mm2（#21AWG）
Approx. 70/0.12A
Approx. 70/0.12A
Approx. 95/0.18A（Approx.70/#37AWG）（Approx.70/#37AWG）（Approx.95/#33AWG）
5.0±0.3φ（0.197±0.0118"φ） 5.0±0.3φ（0.197±0.0118"φ） 7.8±0.5φ（0.307±0.0197"φ）

Flexible PVC

PVCBlack/BlueBlack

50 m （164Ft） 100m （328Ft） 200m（656Ft）

Roll Sizes

2Kg/100m Roll

Weight

3.0Kg/100m Roll

3.3Kg/100m Roll

ELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

DC Resistanceat 20℃

2.8φ（0.110"）

Fiber

Material

Drain Wire

0.932mm2（#18AWG）

XLPE

XLPE

Red/Clear

Red/Light green

219/0.25A（19 ×#31AWG）

0.178mm2（#25AWG）

0.178mm2（#25AWG）

XLPE

CPP

ColorsOv. Jacket

0.18mm2（#25AWG）

0.22mm2（#24AWG）

Material

Monofilament
Filler

3173

Black

3159

3228

3080

3135

3173

Inner Conductor

0.081Ω/m（0.0247Ω/Ft）

0.1Ω/m（0.031Ω/Ft）

0.11Ω/m（0.034Ω/Ft）

0.11Ω/m（0.034Ω/Ft）

0.02Ω/m（0.006Ω/Ft）

Shield Conductor

0.021Ω/m（0.0064Ω/Ft）

0.025Ω/m（0.0076Ω/Ft）

0.02Ω/m（0.0061Ω/Ft）

0.02Ω/m（0.0061Ω/Ft）

0.007Ω/m（0.0021Ω/Ft）

46pF/m（14 pF/Ft）

53pF/m（16 pF/Ft）

46pF/m（14 pF/Ft）

46pF/m（14 pF/Ft）

50pF/m（15.3pF/Ft）

0.8μH/m（0.24μH/Ft）

0.8μH/m（0.24μH/Ft）

1.0μH/m（0.31μH/Ft）

1.0μH/m（0.31μH/Ft）

0.7μH/m（0.21μH/Ft）

110Ω±10%110Ω±5%110Ω±5%110Ω±5%110Ω±10%0.065dB/m

0.069dB/m

0.069dB/m

0.069dB/m

0.0347dB/m（0.020dB/Ft）（0.021dB/Ft）（0.021dB/Ft）（0.021dB/Ft）（0.0106dB/Ft）

0.17rad/m

0.20rad/m

0.20rad/m

0.20rad/m

0.17rad/m

Capacitance at 1kHz, 20℃( effective capacitance value between inner twin )Inductance
Characteristic Impedance
Attenuation（6MHz）
Phase Constant（6MHz）
Electrostatic Noise ＊50mV Max.

Electromagnetic Noise At 10kHz ＊Microphonics＊
Voltage Breakdown

2.0mV Max.
60mV

40mV Max.

40mV Max.

DC 500V/15sec.

AC 500V/60sec.

DC 500V/15sec.

Insulation Resistance

104MΩ・m Min. at DC 250V, 20℃

Flex Life ＊2,900 cycles

33,000 cycles

10,000 cycles

10,000 cycles

16,000 cycles

303 N

441 N

343 N

362 N

Over 980 N

Tensile Strength
Emigration

Non-Emigrant to ABS resin-20℃〜+60℃（-4°F~+140°F）

Applicable Temperature
AES3-100X（ANSI S. 4. 40-199-X）
AES3-100X（ANSI S. 4. 40-199-X）
EBU Rech, 3250-E
EBU Rech, 3250-E
CEI / IEC 958 / CCIR Rec. 647
CEI / IEC 958 / CCIR Rec. 647
UL AWM 20124, 30V, 60℃, VW-1

Standard

AES3-100X（ANSI S. 4. 40-199-X） AES3-100X（ANSI S. 4. 40-199-X） AES3-100X（ANSI S. 4. 40-199-X）
EBU Rech, 3250-E
EBU Rech, 3250-E
EBU Rech, 3250-E
CEI / IEC 958 / CCIR Rec. 647
CEI / IEC 958 / CCIR Rec. 647
CEI / IEC 958 / CCIR Rec. 647
UL13 CL2X, 30V, 60℃
UL444, CM, 300V, 60℃, #25AWGUL AWM 2552, 30V, 60℃, VW-1

＊ Using standard testing methods of Mogami Wire & Cable Corp.

3159

abs〔Z〕 ohm
300

3080

arg〔Z〕 rad0

abs〔Z〕 ohm
300

-0.2

-0.4

200

-0.6
100

10

100

atten.neper/m
0.021000 10000
freg. KHZ

-0.8
10

100

1000 10000
freg. KHZ

phase rad/m
1

100

10

100

atten.neper/m
0.01

0.1

10

100

0.0001
101000 10000
freg. KHZ

Option1000 10000
freg. KHZ

-0.8
10

100

1000 10000
freg. KHZ

phase rad/m
1

200

-0.5

100

10

100

atten.neper/m
0.02

0.1

1000 10000
freg. KHZ

0

10

100

0.0001
101000 10000
freg. KHZ

-1
101000 10000
freg. KHZ

0

10

100

100

1000 10000
freg. KHZ

phase rad/m
10.0001
101000 10000
freg. KHZ

-0.2

120
100

10

100

atten.neper/m
0.0061000 10000
freg. KHZ

0

-0.4
10

100

1000 10000
freg. KHZ

phase rad/m
1
0.01

0.002
100

1000 10000
freg. KHZ

0.1

0.004

0.001
100

arg〔Z〕 rad
0

140

0.01

0.01

0.001
100

1000 10000
freg. KHZ

3173

abs〔Z〕 ohm
160

0.1

0.01

0.005

0.001
0

arg〔Z〕 rad
0

-0.6

0.01

0.01

abs〔Z〕 ohm
300

-0.2

-0.4

200

3135

arg〔Z〕 rad
0

0.001
10

100

0.0001
101000 10000
freg. KHZ

100

1000 10000
freg. KHZ

: FERRITE CORE is available for Part No.3080 and No.3135 to eliminate EMI noise. FITTING TUBING for ITT CANNON XLR connector
is available for Part No.3080 and No.3135 cable.

48

DIGITAL INTERFACE CABLES

MULTICORE AES/EBU & DMX SNAKE CABLES

Part No.3163

Like the world standard MOGAMI multicore microphone "Snake" cable, very flexible and compact
design makes these multicore AES/EBU & DMX cables easy for wiring, installation and handling.

■ Because of employed cellular PP (polypropylene) insulation material, regardless of its compact overall diameter,larger conductor size is used, which naturally results in lower attenuation.

■ Besides, there are the following outstanding features similar to the standard analog multipair cables:● Easy cable core identification system, such as numbered cable core ( please refer to Page 26 )● Easy wiring assisted by the same conductor size drain wire
● Flexible and good low temperature characteristic

3160.

49

freq kHzabs(z)ohm

arg(z)radatten npr/m

phase rad/m

10253.053778-0.666284

0.0004850.00061720

186.122587-0.559186

0.000611

0.00097850

140.097832-0.348423

0.00074

0.002038100

127.900865-0.206205

0.000811

0.003876200

123.592395-0.124331

0.000951

0.007596500

120.029543-0.080112

0.001498

0.0185081000

117.020927-0.0671

0.002361

0.0361642000

114.290764-0.0558

0.003866

0.0706175000

111.573232-0.04365

0.007263

0.173456

10000

110.521001-0.0358

0.012238

0.351575

abs〔Z〕 ohm

arg〔Z〕 rad

300

0

-0.2
-0.4

200

-0.6
100
10

100

1000 10000
freg. KHZ

atten. neper/m

-0.8
10

100

1000 10000
freg. KHZ

phase rad/m

0.02

1

0.1
0.01

0.01

0.001
0
10

100

0.00011000 10000 10
freg. KHZ

100

1000 10000
freg. KHZ

DIGITAL INTERFACE CABLES

Part No.

Nos. of Cores.

O.D.
(Approx. mm)

Jacket Thickness(Approx. mm)

3160

2-CR

9.0(0.354")

1.0(0.039")

8

3161

4-CR

10.5(0.413")

1.2(0.047")

14

305m

3162

8-CR

13.8(0.543")

1.4(0.055")23(1,000Ft)

3163

12-CR

17.0(0.669")

1.6(0.063")30

Weight(Kg/100m)(Kg/328Ft)

Maximum Length available

CABLE CORE SPECS
Conductor

7/0.20A (0.22mm2)#24AWG(7×#32AWG)

Insuration

1.4φCPP (Cellular polypropylene)

Drain Wire

7/0.20A (Exactly same as conductor)

ShieldApprox. 90/0.10A Served (Spiral) Shield

Jacket(covering)

3.3φ Flexible PVC

Identification

Similar to analog snake cable (Ref. Page #26) except for insulation
color of other wire in all pair is chartreuse green(0.055")(0.130")ELECTRICAL & MECHANICAL CHARACTERISTICS
DC Resistance

Inner Pair Conductor

0.081Ω/m(0.0247Ω/Ft)

Shield

0.021Ω/m (0.0064Ω/Ft)

Capacitance at 1kHz 20℃(effective capacitance value between inner twin)

Inductance
Characteristic Impedance
Attenuation (6MHz)
Phase Constant (6MHz)
Electrostatic Noise ＊46pF/m (14pF/Ft)
0.8μH/m (0.24μH/Ft)
110Ω±10%0.065dB/m(0.020dB/Ft)
0.17rad/m
50mV MAX.

Electromagnetic Noise at 10kHz ＊2.0mV MAX.

Microphonics ＊60mV MAX.

Voltage Breakdown
Insulation Resistance at DC 125V. 20℃
Tensile Strength of one Core
Emigration

Must Withstand at DC 500V/15sec.
104MΩ・m MIN.
303 N
Non-Emigrant to ABS resin

Applicable Temperature-20℃〜+70℃ (-4°F〜+158°F)

Standard

AES3-100X(ANSI S.4.40-199X)EBU Rech. 3250-E
CEI/IEC 958/CCIR Rec. 647
UL13 CL2X 60℃＊ Using standard testing methods of Mogami Wire & Cable Corp.

50

DIGITAL INTERFACE CABLESANSI/EIA 232 CABLE

EIA 232 was originally developed as an interface between DTE( data terminal equipment ) such as computers and DCE (datacircuit-terminating equipment ) such as MODEM to transmit 20
kbit/sec. serial data within 15m( 50Ft ). Today it is widely used
as a standard interface for a computer system as well as GP-IB
interface. However, different from GP-IB, it has directional rulefor data path, and further the definition of the control signals
and the pin assignment differs between each device,
therefore, special care for necessary numbers of conductors
and wiring diagram is needed in choosing a cable.

EIA 232 CABLE

EIA 232 CABLE is an interface cable to connect DTE ( data terminal equipment ) and DCE (data circuit-terminating
equipment ) to transmit 20kbit / sec. serial data within 15m (50 Ft ) distance based on EIA 232 standard.

EIA 232 CABLE

DTE

DCE

COMMUNICATION LINE

For ordering, specify the following informations:PART NO : EIA 232 CABLE
CABLE LENGTH :COMBINATION OF CONNECTORS AT BOTH ENDS : Generally male to male
WIRING DIAGRAM : Select correct wiring from the following five options.

OPT.1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

OPT.2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

1
2
3
4
5
6
7
8
15
17
20
22
24

OPT.3
1
2
3
4
5
6
7
8
15
17
20
22
24

FOR JIS C6361 MODEM( M1,2,3,4 ALL COVERED )

1
2
3
4
5
6
7
8
11
12
15
17
20
22
23

OPT.4
1
2
3
4
5
6
7
8
11
12
15
17
20
22
23

MOST OF AMERICAN
MODEM COVERED

1
2
3
4
5
6
7
8
20

1
2
3
4
5
6
7
8
20

FOR ASYNCHRONOUS MODEM

OPT.5
1
2
3
7

1
2
3
7

FOR LOCAL TERMINAL

ALL WIRED
Remarks : ANSI/EIA 232 standard is almost same contents as CCITT V.24 and JIS C6361.

51

DIGITAL INTERFACE CABLESSERVICE INFORMATIONNUL MODEM CABLE

NUL MODEM CABLE is a tool to solve a contradiction or collision generated when the same type ofequipment, DTE and DTE or DCE and DCE, are connected. Because it looks like modem from DTE
side without substance, it is called so " NUL MODEM "NUL MODEM CABLE

EIA 232 CABLE

DTE

DTE

For ordering, specify the following informations:PART NO : NUL MODEM CABLEWIRING DIAGRAM : Select correct wiring from the following six options.

Also, in case of special requirement, specify necessary cable length ( generally 1m/3.28Ft )and combination of connectors at both ends ( generally male to female ) .

OPT.1
FG

TXD

RXD
RTS
CTS

DSR

SG

DCD
DTR

1
2
3
4
5
6
7
8
20

OPT.2
1
2
3
4
5
6
7
8
20

1
2
3
4
5
6
7
8
20

OPT.3
1
2
3
4
5
6
7
8
20

1
2
3
4
5
6
7
8
20

OPT.4
1
2
3
4
5
6
7
8
20

1
2
3
4
5
6
7
8
20

OPT.6

OPT.5
1
2
3
4
5
6
7
8
20

1
2
3
4
5
6
7
8
20

OPT.6
1
2
3
4
5
6
7
8
20

1

1
?

All the wiring except for Pin No. 1 can be designated at your free choice.

LOOP BACK CONNECTOR
In case the system wired by EIA 232 interface does not work or there is any anxiety in operation of DTE( data terminal equipment ) , the easiest and important test is the loop back test. It works as a mirror
against DTE when it is connected in place of DTE or DCE. In other words, it looks like corresponding
from a reproduction of the DTE itself by returning the output data or control signals from itself, so it cantest its own transmitter-receiver and control function.

LOOP BACK CONNECTOR

EIA 232 CABLE

DTE

For ordering, specify the following informations:PART NO : LOOP BACK CONNECTORWIRING DIAGRAM : Select correct wiring from the following three options.

Also, in case of special requirement, specify sex distinction of the connector ( generally female ) .

FG

TXD

AXD
RTS
CTS

DSR

SG

DCD
DTR

OPT.1

OPT.2

1
2
3
4
5
6
7
8
20

1
2
3
4
5
6
7
8
20

OPT.3
1
2
3

All the wiring except for Pin No. 2 & 3 can be designated at your free choice.

52

DIGITAL INTERFACE CABLESANSI/EIA232 CABLE

There are some variations in EIA 232 interface as explained in the beginning, therefore, thefollowing four types of raw cables are prepared to match respective cost and those raw cables arealso available from stock. All those cables are approved as UL SUBJECT 758 AWM 2626 VW-1.

CABLE SPECIFICATIONS

Configuration

Part No.
No. of Conductor
Conductor
Insulation

2691

2690

2689

2579

3

8

14

24

Details

17/0.16TA ( 17 ×#34AWG)

7/0.16TA ( 7 ×#34AWG)

Size

0.34mm2 (#22AWG)

0.14mm2 (#26AWG)

1.4φ(0.055")

1.0φ(0.0394")

Ov. Dia. (mm)Material

Drain Wire

PVC

Details
Size

Braided Shield
JacketOv. Dia. (mm)17/0.16TA (17×#34AWG)

20/0.18TA (20×#33AWG)

0.34mm (#22AWG)

0.51mm 2 (#21AWG)

2

16/ 6/ 0.12TA

24/ 7/ 0.12TA

24/ 8/ 0.12TA

24/ 8/ 0.12TA

6.0φ ( 0.236"φ)8.1φ ( 0.319"φ)9.2φ ( 0.362"φ)9.3φ ( 0.366"φ)Material

Flexible PVC

Color

Gray

Roll Size
Weight per 153m ( 500Ft) Roll

153 m (500Ft)
8.0Kg

13.5Kg

20Kg

21Kg

2690

2689

2579

ELECTRICAL & MECHANICAL CHARACTERISTICS

Part No.

2691

0.06Ω/m(0.018Ω/Ft)

DC Resistance at 20℃
Voltage Breakdown

Must withstand at AC 500V/60sec.

Insulation Resistance

10 MΩ・m Min. at DC 500V , 20℃

4

Non-Emigrant to ABS resin

Emigration-20℃~+70℃ ( -4°F~+158°F)

Applicable TemperatureStandard

UL Subject 758 AWM 2626 VW-1 30V 80℃
Option53

0.14Ω/m(0.043Ω/Ft): FERRITE CORE is available as a countermeasure against EMI noise.

DIGITAL INTERFACE CABLESHIGH SPEED SERIAL TRANSMISSION CABLE

High speed serial transmission cable is a specifically designed cable for higher speed and or
longer cable transmission is required such as for 115.2 kbps ISDN-TA. This cable enables foruse at five times higher rate transmission or five times longer cabling, comparing with regularcable. Feature of this cable can be described as shown below. For detailed information such astransmitted wave form etc., please ask for technical data.

■ Higher speed transmission and or longer cabling becomes possible.

■ Compact overall diameter to meet Dsub 9P connector used for IBM-PC.

■ This very flexible cable is available in both raw cable and cable assembly.

OVERALL SPCIFICATION
3227

Part No.

Part No.3227

Ov. Dia.(mm)7.3φ (0.287"φ)Conductor Size

17/0.08A (#28AWG)

ShieldOverall Braided Shield

Capacitance

37pF/m (Signal Line-All other conductors)
87pF/m (Control Line-All other conductors)

Mutual Capacitance

3pF/m (Between Signal Lines)
6pF/m (Signal Line-Control Line)
32pF/m (Between Control Lines)

Weight per 153m (500Ft) Roll

9.3kg
UL758 STYLE 20124 60℃ 30V VW-1 28AWG

Standard

Remarks : Capacitance value determines distortion of transmitted wave.
Mutual capacitance value is the largest factor to determine cross-talk level.

Typical Pin Assignment■ Please assign inside core conductor Red, White and Blackto TxD, RxD and SG respectively for your own original
cable assembly, otherwise expected characteristics cannot
be realized. Other inside core conductors can be wired toany signal line.

Dsub 25P
1
2
3
4
5
6
7
8
20
22

Dsub 9P
─
3
2
7
8
6
5
1
4
9

Circuit
FG
TXD
RXD
RTS
CTS
DSR
SG
DCD
DTR
RI

Function Name
Protective Ground
Transmitted Data
Receive Data
Request to Send
Clear to Send
Data Set Ready
Signal Ground
Received Line Signal Detector
Data Terminal Ready
Ring Indicator■ Cable assembly is available to order in 10cm(0.394'')interval. Specify required length at XX part of the cable assemblypart number of 5016-XX.

Example: In case of 6m, it is 5016-60, while in case of 8.5m, it is 5016-85. In addition, we need to know used connector
and wiring diagram variations as well as type of screw of the connector case you actually need.

54

DIGITAL INTERFACE CABLES

RS-422 BALANCED VOLTAGE DIGITAL INTERFACE CABLE
MOGAMI #2997 is designed to meet EIA Standard RS-422 general applications, with 2 balanced
cores and 4 signal conductors. Overall diameter of 7mm (0.276") enables it to fit into most of the
D-sub 9-pin connectors available. All the conductors are designed same the size (#25AWG)
including the drain wire which can be crimped by the same size contact. Numbering print systemon the balanced cores is the same as Mogami snake cables and serves as an efficient identification
system together with color coded remaining four signal conductors.

Part No.2997

2997-FC FERRITE CORE

55

DIGITAL INTERFACE CABLESSPECIFICATIONS
Configuration

2997

Part No.

2 × BALANCED CORE
4 × SIGNAL CONDUCTOR

No. of Conductor
Conductor

Details

7/0.18A(7 × #33AWG)

Size(mm2)0.178mm2 (#25AWG)(The same size in all conductor)

Insulation

Ov. Dia. (mm)Material
ColorsDrain Wire

DetailsSize(mm2)

1.05φ(0.0413")

0.178mm2 (#25AWG)Approx.65/0.10A(Approx.65×#38AWG)

Served Shield
Core Jacket
BinderOv. Jacket

1.2φ(0.0472")
PVC
Brown/Red
Orange/Yellow

XLPE
Brown/Clear
Red/Clear
7/0.18TA(7×#33AWG)

Ov. Dia. (mm)Material
Color
Thickness

2.7φ(0.106")
PVC
Black ( with number print )0.025mm (0.001")

Material
Ov. Dia. (mm )Material

Paper Tape
7.0φ Max. (0.276" Max.)
Flexible PVC

Color

Black

153 m (500Ft) / 305m (1.000Ft)

Roll Sizes

9.6Kg/153m (500Ft) Roll

WeightELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

DC Resistanceat 20℃

0.105Ω/m(0.032Ω/Ft)

Shield Conductor

0.028Ω/m(0.0085Ω/Ft)

Capacitance at 1kHz, 20℃( effective capacitance value between inner twin )65pF/m(19.8 pF/Ft)
95Ω±10%Characteristic Impedance
Attenuation(1MHz )0.031dB/m(0.0095dB/Ft)
0.043rad/m
0.5mV Max.
Must withstand at DC 500V/15sec.
104 MΩ・m Min. at DC 500V , 20℃
705 N
Non-Emigrant to ABS resin-20℃~+70℃ ( -4°F~+158°F )Phase Constant(1MHz )Electromagnetic Noise At 10kHz
Voltage Breakdown
Insulation ResistanceTensile Strength (26℃,65%RH )Emigration
Applicable TemperatureStandard
Option

0

200

0
10

100

1000 10000

freg. KHZ

-1
10

:

phase rad/m
1

0.1

0.02

0.01

0.01
100

1000 10000

freg. KHZ

RS-422

FERRITE CORE is available to eliminate EMI noise.

0.03

-0.5

100

EIA

atten. neper/m

arg〔Z〕 radabs〔Z〕 ohm
300

2997

Inner Conductor

0
10

0.001
100

1000 10000

freg. KHZ

0.0001
101001000 10000

freg. KHZ

56

DIGITAL INTERFACE CABLESETHERNET CABLE

Part No. 3306

Mogami Ethernet Cable is specifically designed for
demanding mobile applications. It is flexible enough tolay flat on a floor, yet rugged enough for reliable
performance ─ even with the frequent set ups neededin live sound and commercial venues. Fully meets
TIA/EIA-568B Category 5e performance characteristics.

ELECTRICAL & MECHANICAL CHARACTERISTICS(Measured Value on an average for a length of 100 m at 100 MHz)

Nominal Characteristic Impedance100ΩAttenuation

24dB

Return Loss

22dB

Propagation Delay

480ns
5ns

Delay Skew

Tensile Strength connector to cable

Minimum 300 N

Tensile Strength of cable itself

Minimum 700 N

Overall Diameter

9.2mm (0.362")

NEXT

44dB

Overall Jacket Material

PVC

PS NEXT

44dB

Color

Black

ELFEXT

33dB

Weight per 100 m Roll

PS ELFEXT

32dB

8.3 Kg
UL758 Style 20124
60℃ 30V VW-1

Standard

COMBINATION OF TWISTED PAIR COLORS AND RECOMMENDED WIRING DIAGRAMCOLOR COMBINATION OF A PAIRPIN NUMBER OF RJ45

White/Green1, 2

Blue/Grey3, 6

Yellow/Orange

4, 5

Natural/Brown

7, 8

3306-TB

Tube set for both ends

This cable is available in complete assemblies, wired for straight or cross connection format. Please specify which
format when ordering. Bulk cable is also available in lengths up to 300m (1,000 Ft). Factory assemblies carry a one
year warranty against failure. Service outside of warranty is available from the factory at nominal cost.

57

DIGITAL INTERFACE CABLES

LAN CABLE FOR INSTALLATION & EVENT SET UP APPLICATION
3367 LAN cable is designed to be limp in order to be easy to handle and lay out flat. This solves asignificant problem with standard data cables, which lay about as flat as barbed wire!
Performance meets the TIA/EIA-568B Cat-5e standard up to approximately 295 feet (90 meters).
Please note that precise usable length depends greatly on the electrical characteristics of theconnected devices, so if there is any doubt it is best to verify performance with the specific devices
before installation.
Complies with UL VW-1 flame propagation standard. Three standard colors, Blue, Grey, and Yellow areavailable.
3381 features a reinforcement fiber cord in the center of the cable for enhanced tensile strength. This
makes it approximately 30% stronger than 3367. The additional strength combined with the limp,
no-memory handling characteristic mean 3381 is perfect for live event set up. Available in Black jacket.

Part No.3381

Part No.3367

SPECIFICATION S & ELECTRICAL CHARACTERISTICS
Configuration

3367

Part No.
Characteristic Impedance
Conductor
Insulation
Filler Thread
Ov．Jacket
Flex Life ＊Breaking Strength
Roll Sizes
WeightStandard

DetailsSize
Ov. Dia.
Material
Ov. Dia.
Material
Colors3381

100Ω

7/0.203A

0.22mm2 (#24AWG)
0.98mm (0.039”)
PE-

6.2mm (0.24”)

Blue/Grey/Yellow
470N

PVC

4,300 cycles

153m (500Ft) / 305m (1,000Ft)
12.7Kg/305m (1,000Ft)

UL 2552 AWM VW-1 30V 60℃

Fiber

Black
610N

305m (1,000Ft)

13Kg/305m (1,000Ft)

UL 20124 AWM VW-1 30V 60℃＊Using standard testing methods of Mogami Wire & Cable Corp.

58

MULTICORE CABLESMECHATRO OVERALL SHIELD CABLES

Part No.
2862

Part No.
2842

Multi purpose #28AWG superflexble overall shielded cable available in twisted pair configuration forelectromagnetic noise rejection as well as in economy and easy wiring general round configuration incompact gray jacket. All these cables are approved as UL SUBJECT 758 AWM 20002 VW-1.
ELECTRICAL & MECHANICAL CHARACTERISTICSCABLE SPECIFICATIONS
Conductor Details

0.088mm2 (#28AWG)

Size
Insulation

Ov. Dia. (mm)0.95φ(0.0374")
PVC

Material
Overall Shield TypeOv. Jacket

DC Resistance at 20℃
Voltage Breakdown
Insulation Resistance＊
Chracteristic Impedance＊Cable Skew
Delay Time＊
Velocity Ratio＊
Emigration
Applicable TemperatureStandard

7/0.127TA (7×#37AWG)

Braided shield

Coverage

Minimum 85%

Material

Flexible PVC

Color

Dark Gray＊Data for Twisted Pair Type Only.

0.21Ω/m( 0.064Ω/Ft )Must withstand at AC 500V/60sec.

104MΩ・m M in. at DC 500V , 20℃
90~115Ω (at 10MHz )0.517nS/m

5.5~6.1nS/m
0.55~0.60

Non-Emigrant to ABS resin-20℃~ +70℃ (-4°F~+158°F )UL 758 AWM 20002 VW-1 30V 80℃

ROUND TYPE
Part No .

No. ofConductor

Ov. Dia.
( mm )

Roll size andweight per roll

2861
2862
2863
2835
2864
2865
2866

7
12
24
30
40
50
64

5.2φ(0.205")
6.4φ(0.252")
8.4φ(0.331")
9.0φ(0.354")
10.3φ(0.406")
11.0φ(0.433")
12.3φ(0.484")

6kg/153m ( 500Ft )9kg/153m ( 500Ft )15kg/153m ( 500Ft )17kg/153m ( 500Ft )20kg/153m ( 500Ft )25kg/153m ( 500Ft )30kg/153m ( 500Ft )Basical structure

TWISTED PAIR TYPE
Part No .

No. ofPair

Ov. Dia.
( mm )

Roll size andweight per roll

2840
2841
2842
2843
2845
2847
2848
2849
2851

5-PR
7-PR
8-PR
10-PR
13-PR
18-PR
20-PR
25-PR
32-PR

7.4φ(0.291")
7.8φ(0.307")
8.4φ(0.331")
9.5φ(0.374")
10.0φ(0.394")
11.5φ(0.453")
11.8φ(0.465")
13.0φ(0.512")14.5φ(0.571")

11kg/153m ( 500Ft )12kg/153m ( 500Ft )13kg/153m ( 500Ft )17kg/153m ( 500Ft )19kg/153m ( 500Ft )24kg/153m ( 500Ft )26kg/153m ( 500Ft )15kg/77m ( 250Ft )19kg/77m ( 250Ft )Option59: FERRITE CORE is available as a countermeasure against EMI noise.

Basical structureMULTICORE CABLES

0.15mm2(#26AWG) CONDUCTOR OVERALL SHIELD CABLE SERIESPart No.2814

Part No.2642

Part No.2789

0.15mm2 (#26AWG) conductor overall shield cable series is comprised of about two times larger
conductor size as mechatro overall shield cable series. There is no community in design policy, as
they were originally custom-made cables and remained as standard items one by one, however,they are suitable where larger conductor size, flexibility and compactness are all required. Available
from five up to nine conductor, not in twisted pair configuration.

SPECIFICATIONS
Conductor

Details

30/0.08A ( 30 ×#40AWG)

Size

0.150 mm2 (#26AWG)

Insulation

Ov. Dia. (mm)Overall Shield
Ov. Jacket

1.0φ(0.0394")

Material

PVC
See Each Spec.

Type

Coverage

85% (Braid )~ 100%( Served )Flexible PVC

Material

Color

Dark Gray or BlackELECTRICAL & MECHANICAL CHARACTERISTICS
DC Resistance at 20℃

0.13Ω/m(0.040Ω/Ft)

Electromagnetic Noise

0.1mV Max.

Voltage Breakdown
Insulation ResistanceMust withstand at AC 500V/60sec.
104 MW・m Min. at DC 500V, 20℃

Emigration

Non-Emigrant to ABS resin

Applicable Temperature-20℃~+70℃ ( -4°F~+158°F)

Standard

UL 758 AWM 20002 VW-1 30V 80℃
Except for Part No. 2642-08 / No. 2789-00

Part No .

No. ofConductor

Ov. Dia.
( mm )

Type of
ShieldColor

Roll size andweight per roll

2757-00
2814-00
2642-082789-00
2871-00567895.0φ(0.197")
5.4φ(0.213")
5.1φ(0.201")
5.6φ(0.220")6.0φ(0.236")

Braid
Braid
ServedServedServed

Black
Black
Gray
Black
Black

5.5kg/153m ( 500Ft )6.2kg/153m ( 500Ft )8.8kg/200m ( 656Ft )9.0kg/200m ( 656Ft )8.0kg/153m ( 500Ft )Option : FERRITE CORE is available as a countermeasure against EMI noise.

60

GUITAR CABLESGUITAR CABLES/HIGH IMPEDANCE TRANSMISSION CABLES

Part No.2319

Part No.2524

Most musical instrument sound pick-ups such as those in electric guitars are comprised of highimpedance circuits driven by voltage, in other words by very small electrical current flow. Therefore,so-called MICROPHONICS (noise) becomes a critical problem. (Microphonics means noise that is
generated when the cable is moved and or tapped when the cabling circuit is a high impedance
link.) Guitar cables must be counter-measured against this, so, a conductive PVC layer is placed
under the shield conductor in most cases even though it may have a bad affect on audio soundquality. Therefore, the conductive PVC (black carbon PVC) layer must be removed together with theshielding conductor when wiring, otherwise we receive a strange claim that the cable is shorting.

SPECIFICATIONSPart No.

Conductor
Insulation

2319

Sub-Shield

Main-Shield
JacketDetailsSize(mm2 )Ov. Dia. (mm)Material
Color
Ov. Dia. (mm)Material
Color

2319

2524

12/0.18A

50/0.12OFC

0.305mm2 (#23AWG)

0.565mm2 (#20AWG)

1.6φ(0.063")

1.8φ(0.071")

2.7φ(0.106")

PE
Clear

3.4φ(0.134")

Conductive PVC (Carbon PVC)
Black

Served-Shield

Approx.48/0.12A

Approx.57/0.18OFC

Ov. Dia. (mm)Material
Color

5.0φ(0.197")

6.0φ(0.236 ")Roll Sizes
Weight per 100 m ( 328 Ft ) roll

PVC
Black
100 m (328Ft) / 200m (656Ft)

3.5Kg

5.1Kg

ELECTRICAL & MECHANICAL CHARACTERISTICS
2524

Part No.

DC Resistanceat 20℃

2319

2524

Inner Conductor

0.06Ω/m(0.018Ω/Ft)

0.033Ω/m(0.010Ω/Ft)

Shield Conductor

0.032Ω/m(0.010Ω/Ft)

0.013Ω/m(0.0040Ω/Ft)

Capacitance at 1kHz, 20℃
InductanceElectrostatic Noize＊
Electromagnetic Noise At 10kHz＊
Microphonics＊
Voltage Breakdown
Insulation ResistanceFlex Life＊
Tensile Strength (26℃,65%RH )Emigration
Applicable Temperature

155pF/m(47.3 pF/Ft)
130pF/m(39.7 pF/Ft)
0.16μH/m(0.049μH/Ft)
0.2μH/m(0.061μH/Ft)
LOD (Limit of Detection)
LOD (Limit of Detection)
0.3mV Max

0.3mV Max
Must withstand at DC 500V/15sec.
105 MΩ・m Min. at DC 500V , 20℃

11,000 cycles
303 N

15,000 cycles
578 N

Non-Emigrant to ABS resin-20℃~ + 60℃ ( -4°F~ +140°F )＊Using standard testing methods of Mogami Wire & Cable Corp.

61

GUITER CABLES

Low Capacitance Guitar Cable

3368 is a new cable designed for truly highperformance sound while simultaneously being
rugged enough for live stage and performance use.
This large diameter cable is designed with lower
capacitance for the purest possible sound, while
not being so low to cause performance problems
by being outside the design range of available
instrument pickups.
Part No.3368
Coaxial configuration gives the most accurate tone.
A challenge for large diameter coaxial cables is that the center conductor must move inside thestructure when the cable is flexed, so such cables can be delicate when handled roughly.
The proprietary composite braid shield structure of 3368 makes the cable quite rugged, and thisnew design maintains flexibility and performance even when used in a stage and touring
environment.
A new method has been used to keep handling noise extremely low, so this cable can be used forany application where high impedance circuits (guitar pickups, sensor cables) with very low loss
are needed.

CABLE SPECIFICATIONSPart No.

Conductor
Semi-Conductive
Layer

Insulation
3368

Sub-Shield

ShieldJacketDetailsSize
Ov. Dia. (mm)Material
Color
Ov. Dia. (mm)Material
Color
Ov. Dia. (mm)Material
Color
Type
Details
Ov. Dia. (mm)Material
Color

Roll Sizes
Weight per 100m ( 328 Ft ) roll

3368
50/0.12OFC
0.565mm2 (#20AWG)
1.5φ (0.059”)
Conductive PE
Black
5.3φ (0.209”)CPE
Natural5.7φ (0.224”)
Conductive PVC (Carbon PVC)
Black
Composite Braid Shield
0.12OFC/7/12 + 167Dtec/2/12
8.0φ (0.315”)
PVC
Black
100m(328Ft)/153m(500Ft)
6.2 Kg

ELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

DC Resistanceat 20℃

Inner Conductor

Shield Conductor

Capacitance at 1kHz, 20℃
InductanceElectrostatic Noize＊
Electromagnetic Noise At 10kHz＊
Microphonics＊
Voltage Breakdown
Insulation ResistanceFlex Life＊
Tensile Strength (26℃,65%RH )Emigration
Applicable Temperature

3368
0.033Ω/m(0.010/Ft)

0.024Ω/m(0.0073/Ft)
70pF/m(21.4pF/Ft)

0.4μH/m (0.12 μH/Ft)
LOD (Limit of Detection)
LOD (Limit of Detection)
LOD (Limit of Detection)

Must withstand at DC 500V/15sec.
105 MΩ・m Min. at DC 500V, 20℃
15,000 cycles
540N
Non-Emigrant to ABS resin-20℃〜+60℃ (-4°F〜+140°F)＊Using standard testing methods of Mogami Wire & Cable Corp.

62

HI-FI AUDIO CABLES
Hi-Fi Interconnection Cables

2803

2497

Part No.2803 / 2497

2803 has been evaluated as the world's highest resolution and rich detailed cable in the world market.
Because of pursuit of reducing the effect of the cable to improve resolution to the utmost limit, it may
not suit all systems depending on the situation. This cable works well when a vivid original soundimage, without any colouration to the signal, is wanted. Since the only degradation of a 2803 cable will
be caused by the RCA phono plug used this must be carefully selected.
The key point of the plug lies in its size to keep metal parts, other than cable itself, as short and small
as possible.
2497 has been available for a long time before 2803 was developed. Its larger cable structure makes it
easier to use than 2804 and so is preferred in some applications.
ELECTRICAL CHARACTERISTIC data are just for reference.

Part No.

DC Resistance

Capacitance

Characteristic Impedance

O.D.

2803

160 mOhm/m

108 pF/m

50 Ohm3.6mm (0.142")2497

55 mOhm/m

67 pF/m

75 Ohm8.0mm (0.315")

Preassembled cables are also available from us in Japan. In case of 2803, an exclusive moulded RCA plug isused, and in case of 2497, Mogami Part No. 7553 RCA plug is used. Ordering information for 1 meter is2803PP-10, 2 meter becomes 2803PP-20 and so on.

63HI-FI AUDIO CABLES

Hi-Fi Speaker Cables

2804

2477

Part No.2804 / 2477

Despite a very small overall diameter 2804 delivers marvellous resolution and rich detail. It's main
application is for making short speaker cables when a power amplifier is placed close to a speaker,
in separate pre/power amplifier configurations.
2477 has been available for a long time before 2804 was developed. Its larger cable structure makes
it easier to use than 2804 and so is preferred in some applications.

ELECTRICAL CHARACTERISTIC data are just for reference.

Part No.

DC Resistance

Capacitance

Characteristic Impedance

O.D.

2804

94 mOhm/m

590 pF/m

15 Ohm3.6mm (0.142")2477

15 mOhm/m

550 pF/m

16 Ohm8.0mm (0.315")

Preassembled cables are also available from us in Japan. Connector pin (5cm/1.97" long 1mm/0.039" O.D.

wire) for speaker terminal is connected at the both ends of cable. Ordering information for 1 meter is2804SS-10, 2 meter becomes 2804SS-20 and so on.

64HI-FI AUDIO CABLES

Hi-Fi Hook-Up Wire
Internal wiring lead wires for Hi-Fi devices. Those
hook-up wires are made of fine conductor andinsulation materials for those applications. Black, Red,
Orange, Yellow, Green, Blue and Clear are available.

Part No.2514/2515/2516

ELECTRICAL CHARACTERISTIC data are just for reference.

Part No.

Conductor

Ov. Dia.

DC ResistanceRoll Size

2514

19/0.18 0.483mm2 (#21AWG)

1.7mm (0.067") 36 mΩ/m (11mΩ/Ft)

100m

2515

30/0.18 0.763mm2 (#19AWG)

2.0mm (0.079") 23 mΩ/m (7mΩ/Ft)

100m

2516

52/0.18 1.323mm2 (#16AWG)

3.3mm (0.130") 13 mΩ/m (4mΩ/Ft)

100m

Hi-Fi Sub-Miniature Coaxial Cables
Very fine coaxial cable that can be used in place of leadwire for a record player cartridge. Red and White areavailable for stereo.

Part No.2526/2520

ELECTRICAL CHARACTERISTIC data are just for reference.

65

Part No.

Ov. Dia.

DC Resistance

CapacitanceRoll Size

2526

1.2mm (0.047")

630 mΩ/m (192 mΩ/Ft)

150 pF/m (46 pF/Ft)

100m

2520

2.3mm (0.091")

290 mΩ/m (88 mΩ/Ft)

100 pF/m (31 pF/Ft)

50m

HI-FI AUDIO CABLES

Hi-Fi Cable NEGLEX 2803 & 2804 - Historical Review
Part No. 2803 and 2804 are difficult to manufacture and have a very low yield rate. So we can makerelatively small amounts of them. These present the paradox that if they became very popular it would
take too many factory resources which could be used more profitably in making other products. Frankly
most companies would discontinue them as too much trouble for the revenue they generate.
How they came about and why we have continued production for so many years is an interesting story.
The reader must remember that for many years it was assumed that audio cable did not affect the soundof audio systems. This is taken for granted by most people today.
Then, back in April 1974 Mr. Akihiko Kaneda of Akita University presented in the technical magazine foramateur "MUSEN TO JIKKEN" (Wireless & Experimentation) that the sound quality of an amplifier could
be changed even by wire or cable. Further, sonic effect was assumed to be caused by skin effect, andalso made worse by the common tin plate over copper structure.
At the same time, audio critic Mr. Sabro Egawa presented his experimental results in a music magazine"Record Geijyutsu" (Record Art) in its December, 1975 issue that the sound quality is different between
speaker cables, and he pointed out the possibility of its relation to skin effect as well.
These two statements that I called "Kaneda-Egawa prospect" were in error in the following points:
It is against common sense of electro-acoustical engineering (we knew electrical characteristicof a cable cannot change sound and skin effect at audio frequencies is extremely low,
un-measurable in level.) Since it referred to the electrical property which caused differencein sound definitely as skin effect, it could become a verification and argument subject with
non-ambiguous electrical engineering.
I started engineering calculation and experimentation, assuming at the beginning I could easily provethat skin effect could never affect sound quality. However, before long I was forced to realize that it was
not so easy. In fact, I had to recognize the fact that sound is changed by cable, as a result of the very
experiments by the discoverers in front of me, so that I was compelled to research it seriously.
Skin effect is a part of eddy current nature, and although it is not possible to measure it at audio
frequency range, it can be calculated electromagnetically and the calculated result can be verified byseveral methods. Therefore I did listening tests myself and asked many people for double blind tests,
making many cable models that had different eddy current loss. These listening tests made me sure thatskin effect has a rather large role in the sound differences.
Given this result, the next question became if we human-beings could detect such minute differencesthat they could not be measured by electrical measurement. On the other hand, we can identify thesame sound source even though it is quite different in electrical characteristics. Therefore, it became
understood that our brain percepts sound by a different mechanism from electrical measurement.
What became apparent after many experiments was that "Frequency Derivative of the transfer function"(system function - magnitude and phase response) of an audio system was deeply related to this issue.
If so, humans are very sensitive to the difference between close frequencies and not good atcomparison between greatly separated frequencies. These are quite different characteristics fromelectrical measurement.

66

HI-FI AUDIO CABLES

The reason for this difference seems to relate to the fact that the transmission system from ear to brain is
two-dimensional, and operation is done at orthotomic surface; further, total brain operation is processed
three-dimensionally. However, an electrical measuring system is a one-dimensional operation, so that it
becomes hard to make frequency derivative operation of the transfer characteristic. (In an opticalcomputing system using lens and mirror with laser light, this kind of operation can be easily realized).
Two products which resulted from huge amount of theoretical study, computation, measurement andexperimental research by double blind test are the 2803 interconnect and 2804 speaker cable. These
have been judged by countless listeners to have extremely high sound quality.
Because of difficult to manufacture cable design and resulting very low yield rate, these are not"practical" products, so that we are always urged by our accountants to discontinue them. However, we
think we are going to continue with the challenge of making them. We hope critical listeners continue toenjoy them.
Incidentally, to this day most audio makers and electrical cable designers deny skin effect. Sadly there
are many gimmicky goods on the market, with marketing suggesting countless "voodoo" factors that
simply cannot be understandable by science and engineering, for example purity of conductor material.
Of course, there are some upright and serious makers like Panasonic that are indifferent to thosegimmicks. We salute the latter, while recalling the often cited advice to "let the buyer beware."67

ULTRAFLEXIBLE MINIATURE CABLESULTRAFLEXIBLE MINIATURE CABLES

2912

2943

2784

2754

2739

2780

2880

Most of these miniature cables were originally developed one by one as custom cable for amagnetic head lead which must be swiftly moved to speficified position precisely by small energy
such as a floppy disk drive. And then, some of them remained as continued items close to standard
stock products, finding out unfixed varied demand in long period of time. For such application,these cables are indispensable, even thanked.

□LEAD WIRE
Part No.

Conductor Size

Ov. Dia.

2680-0X#33AWG (0.0314mm )0.6mm (0.0236")

2912-0X#28AWG (0.0854mm2)

0.85mm (0.0335")

2

Available Color

Standard 10 Colors□SHIELDED CABLES#33 AWG SERIES

Nos. of
Conductor

Part No.

Ov. Dia.

122784-0X

32754-08

42739-0X

52780-00

62880-00

1.8mm(0.0709")
1.95mm(0.0768")2.1mm(0.0827")#32 AWG SERIESPart No.

Ov. Dia.

1.0mm#28 AWG SERIESPart No.

Ov. Dia.

1.5mm

2444-0X(0.0394")2943-00(0.0591")2490-08(0.0669")2794-00(0.0906")

2879-08(0.0709")2790-00(0.0965")(0.0787")2929-00(0.106")

1.7mm
1.8mm
2.0mm

2769-0X

2.3mm

2.45mm
2.7mm

2.2mm

(0.0866")
2.5mm(0.0984")

Flexibility / Flex Life

1

3

2

Easiness of cable end

3

2

1

Low cost

2

1

3

treatment

ESTIMATION ：CAUTION ：1：TOP

2：MEDIUM

3：LOW

Extremely weak against Tensile Strength.

68

ULTRAFLEXIBLE MINIATURE CABLES
Because of drastic changes in UL standards effective from May, 2008, two versions of each cable are
now available; either the new UL rated version or non-approved original specification version.
This is because the UL standard now requires a physical strength test on both the insulation and jacket
materials, in addition to a fire protection property test. This physical strength test was not previously
required for low voltage application cables. To pass the test the insulation and or jacket materials must
be revised to more physically durable types in most cases. Since the diameter of the stronger materials
is larger, they are slightly less flexible than the originals. Please carefully review the following
comparison table between the original and new UL approved designs for the best match in yourapplication.

Mogami Part No. Assignment for new UL version Ultraflexible Miniature Cable SeriesPart No.

2680
2912

69

Part No. W/UL Approval Approved UL Style No.

3308
3309

1571
1571

Structure＃33AWG＃28AWG

2444

3324

1682

1×＃32AWG

2490

3314

2725

2×＃32AWG

2879

3315

2725

3×＃32AWG

2769

3316

2725

4×＃32AWG

2943

3325

1571

1×＃28AWG

2794

3311

2725

2×＃28AWG

2790

3312

2725

3×＃28AWG

2929

3313

2725

4×＃28AWG

2784

3317

2725

2×＃33AWG

2754

3318

2725

3×＃33AWG

2739

3319

2725

4×＃33AWG

2780

3320

2725

5×＃33AWG

2880

3321

2725

6×＃33AWG

Revised Part

Past

New

Insulation Material.

FB201

M163A

Insulation O.D.

0.6mm

0.7mm

Insulation Material.

FB201

M163A

Insulation O.D.

No change
No change
0.55mm
0.7mm
1,0mm
1.5mm
No change
0.53mm
0.75mm
1.7mm
2.3mm
No change
0.53mm
0.75mm
1.8mm
2.45mmNo change
0.53mm
0.75mm
2.0mm
2.6mm
FB201
M163A
0.85mm0.85mm
1.5mm
1.63mm
FB201
M163A
0.83mm
0.90mm
2.3mm
2.6mm
FB201
M163A
0.83mm
0.90mm
2.45mm
2.7mm
FB201
M163A
0.83mm0.85mm
2.7mm
2.8mm
FB201
M163A
0.6mm
0.75mm
1.8mm
2.3mm
FB201
M163A
0.6mm
0.75mm
1.95mm
2.4mm
FB201
M163A
0.6mm
0.7mm
2.1mm
2.5mm
FB201
M163A
0.6mm
0.7mm
2.2mm
2.7mm
FB201
M163A
0.6mm
0.7mm
2.5mm
2.9mm

Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.
Insulation Material.
Insulation O.D.
Jacket O.D.

ULTRAFLEXIBLE MINIATURE CABLESSPECIFICATIONS□ LEAD WIRE
SPECIFICATIONS

Conductor

Part No.

Insulation

Details

Size (mm2)2680

25／0.04A

2912

17／0.08A

WeightOv. Dia.(mm)Material

0.0314mm2 (#33AWG)

0.60φ(0.0236")

Flexible PVC

0.0854mm2 (#28AWG)

0.85φ(0.0335")

Flexible PVC

Common Specification

Roll

Color

Size

2,000 Ft spool

0.52kg1.03kg

Details of Colors

10 colours

Black/Brown/Red/Orange/Yellow/
Green/Blue/Violet/Gray/WhiteELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

DC Resistance at 20℃

Tensile Strength

Flex Life2680

0.6Ω／m (0.183Ω／Ft)

8N

36,0000.22Ω／m (0.0672Ω／Ft)

2912(cycles)

16 N

11,800COMMON CHARACTERISTICS
Voltage Breakdown

Spark Test at 500V

Insulation Resistance

103MΩ・m Min. at DC 250V, 20℃
Non-Emigrant to ABS resin

Emigration-20℃〜+80℃ ( -4°F〜+176°F )Applicable Temperature□ SHIELDED WIRE

#32AWG SERIESSPECIFICATIONS
Common Construction

Part No
2444
2490
2879
2769
Exception

Conductor

Insulation

Details

Size (mm2)

Ov. Dia.(mm)Material

7/0.08TA

0.0351mm2 (#32AWG)

0.53φ(0.0209")

Flexible PVC

Nos. of

ShieldConductor

Served Shield

Jacket1

Approx. 23/0.08A

2

Approx. 30/0.10A

3

Approx. 35/0.10A

4

Approx. 40/0.10A

Ov. Dia.(mm)Material

1.0φ(0.0394")
1.7φ(0.0669")

Flexible PVC

1.8φ(0.0709")

Colors

WeightBlack/Gray

0.75 kgGray

1.55 kg

Gray
Black/Gray

2.0φ(0.0787")

Roll Size

305m (1,000Ft)

1.83 kg
2.28 kgOv. Dia. of conductor insulation of Part No.2444 is 0.55φ(0.0217").Also, stranded conductor of 0.08mm dia. bare copper, not tin plated.

ELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.
2444
2490
2879
2769

DC Resistance at 20℃

Flex Life

Inner Conductor

Shield Conductor(cycles)0.53Ω/m(0.162Ω/Ft)

0.16Ω/m (0.0488Ω/Ft)

13,0000.07Ω/m (0.0214Ω/Ft)

22,0000.55Ω/m(0.168Ω/Ft)

0.08Ω/m (0.0244Ω/Ft)
0.06Ω/m (0.0183Ω/Ft)

9,100

20,000COMMON CHARACTERISTICS
Voltage Breakdown
Insulation ResistanceTensile Strength（26℃, 65%RH）
Emigration
Applicable Temperature

Must Withstand at DC 250V/15sec.

103MΩ・m Min. at DC 250V, 20℃
9.8 N (Per One Core Conductor )Non-Emigrant to ABS resin-20℃〜+80℃ (-4°F〜+176°F)

70

ULTRAFLEXIBLE MINIATURE CABLES□ #28AWG SERIESSPECIFICATIONS

CommonConstruction

Conductor

Insulation
Size (mm2)

Details

Part No

Nos. of
1

2943

4

2929

Flexible PVC

2.45φ(0.0965")

Approx. 70/0.08A

Roll Size

Weight1.37kg

305m

Black

(1,000Ft)

2.7φ(0.1063")

Approx. 80/0.08A

Polypropylene

PVC

1.5φ(0.0591")
2.3φ(0.0906")

Approx. 57/0.08A-

Material

Flexible

Color

Material

Ov. Dia.(mm)Approx. 34/0.08A

-

3

2790

Served Shield

-

2

2794

0.83φ(0.0327")

JacketShieldFillerConductor

Ov. Dia.(mm)0.0854mm2 (#28AWG)

17/0.08A

2.55kg3.25kg4.0kg

Exception: Ov. Dia. of conductor insulation of Part No.2943 is 0.85φ (0.0355") .

ELECTRICAL & MECHANICAL CHARACTERISTICS
DC Resistance at 20℃

Part No.
2943( 0.0671Ω／Ft )2790(cycles)0.11Ω／m (0.0336Ω／Ft)

0.22 Ω／m2794

Flex Life

Shield Conductor

Inner Conductor

36,0000.07 Ω／m (0.0214Ω／Ft)

16,0000.054Ω／m (0.0165Ω／Ft)

28,0000.047Ω／m (0.0143Ω／Ft)

2929

21,000COMMON CHARACTERISTICS
Must Withstand at DC 250V/15sec.

Voltage Breakdown

103MΩ・m Min. at DC 250V, 20℃

Insulation Resistance

21 N (per one core conductor )Tensile Strength (26℃, 65%RH)

Non-Emigrant to ABS resin

Emigration-20℃〜+80℃ (-4°F〜+176°F)

Applicable Temperature□ #33AWG SERIESSPECIFICATIONSInsulation

Conductor

Common Construction

Details

Size (mm2)0.0314mm2 (#33AWG)

25/0.04A
Part No

Nos. of

2784
2754
2739
2780
2880

2

Served Shield

Approx. 38/0.08A-

3
5

Polypropylene Approx. 70/0.08A

2.2φ(0.0866")

Polypropylene Approx. 79/0.08A

6

Material

1.8φ(0.0709")
1.95φ(0.0768")

Polypropylene Approx. 59/0.08A

4

Ov. Dia.(mm)Approx. 54/0.08A-

Material

Flexible PVC

JacketShieldFillerConductor

Ov. Dia.(mm)0.60φ(0.0236")

2.1φ(0.0827")

Color

Roll SizeBlack/Gray
Flexible PVC

2.5φ(0.0984")

DC Resistance at 20℃

2.05kgBlack

2.85kgBlack/Gray 305m (1,000Ft)
Black

2784
2754
2739
2780

Flex Life
Shield Conductor(cycles)0.1Ω／m (0.0305Ω／Ft)

20,0000.06Ω／m (0.0184Ω／Ft)

57,0000.048 Ω／m (0.0146Ω／Ft)

50,000Inner Conductor

0.6 Ω／m(0.183Ω／Ft)

2880

0.07 Ω／m (0.021Ω／Ft)

36,0000.054 Ω／m (0.0165Ω／Ft)

35,000COMMON CHARACTERISTICS
Voltage Breakdown

Must Withstand at DC 250V/15sec.

Insulation ResistanceTensile Strength(26℃, 65%RH)

103MΩ・m Min. at DC 250V, 20℃
8.3 N (per one core conductor)

Emigration

Non-Emigrant to ABS resin

Applicable Temperature-20℃〜+80℃ (-4°F〜+176 °F)□ STANDARD COLOUR COMBINATION OF SHIELDED CORES
Nos. of Cores
Core Color

71

Exception

1

White

Part No. 2769

2White/Red

3

White/Red/
Black

White/Yellow/Blue/Green

4

White/Red/

Black/Yellow

5White/Red/Black/
Yellow/Blue

1.56kgGray

ELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

Weight6

White/Red/Black/

Yellow/Blue/Green

2.44kg3.24kgULTRAFLEXIBLE MINIATURE CABLESSPECIFICATIONS□ LEAD WIRE
SPECIFICATIONSPart No.

Conductor

Insulation
Size (mm2)

Details

WeightOv. Dia.(mm)Material

3308

25/0.04A

0.0314 (#33AWG)

0.7φ(0.0276")

Flexible PVC

3309

17/0.08A

0.0854 (#28AWG)

0.85φ(0.0335")

Flexible PVC

Common Specification

Roll

Size

2,000 Ft spool

0.6kg
1.05kgColor

Available Colours

10 colors

Black/Brown/Red/Orange/Yellow/
Green/Blue/Violet/Gray/WhiteELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.

DC Resistance at 20℃

Tensile Strength

Flex Life3308

0.6Ω／m (0.183Ω／Ft)

8.4 N

21,0000.22Ω／m (0.0672Ω／Ft)

3309(cycles)

22 N

32,000COMMON CHARACTERISTICS
Voltage Breakdown

Spark Test at 1,500V

Insulation Resistance

103MΩ・m Min. at DC 250V, 20℃
Non-Emigrant to ABS resin

Emigration-20℃〜+80℃ ( -4°F〜+176°F )Applicable Temperature

UL758 STYLE 1571 80℃ 30V VW-1

Standard□ SHIELDED WIRE

#32AWG SERIESSPECIFICATIONSPart No
3324
3314
3315
3316

Exception:

Insulation

Conductor

Common Construction

Details

Size (mm2)

Ov. Dia.(mm)Material

7/0.08TA

0.0351 (#32AWG)

0.75φ(0.0295")

Flexible PVC

Nos. of

ShieldConductor

Served Shield

Jacket1

Approx. 28/0.08A

2

Approx. 42/0.10A

3

Approx. 50/0.10A

4

Approx. 52/0.10A

Color

Ov. Dia.(mm)Roll Size

Material

1.5φ(0.0591")

Black/Gray

2.3φ(0.0906")

Gray

Flexible PVC

2.45φ(0.0965")

Gray
Black/Gray

2.6φ(0.102")

Weight1.17 kg

305m (1,000Ft)

2.33 kg
2.93 kg
3.30 kgOv. Dia. of conductor insulation of Part No.3324 is 0.7φ(0.0276")

ELECTRICAL & MECHANICAL CHARACTERISTICS
Part No.
3324
3314
3315
3316

DC Resistance at 20℃
Shield Conductor

Inner Conductor(0.168Ω/Ft)(cycles)0.13Ω/m (0.0397Ω/Ft)

18,7000.050Ω/m (0.0153Ω/Ft)

18,6000.53Ω/m(0.162Ω/Ft)
0.55Ω/mFlex Life

0.058Ω/m (0.0177Ω/Ft)
0.048Ω/m (0.0146Ω/Ft)

3,560
13,900COMMON CHARACTERISTICS
Voltage Breakdown
Insulation ResistanceTensile Strength（26℃, 65%RH）
Emigration
Applicable TemperatureStandard
Exception:

Must Withstand at AC 500V/60sec.

103MΩ・m Min. at DC 250V, 20℃
10 N (Per One Core Conductor)
Non-Emigrant to ABS resin-20℃〜+80℃ (-4°F〜+176°F)

UL758 STYLE 2725 80℃ 30V VW-1

UL approval of Part No.3324 is STYLE 1682 60℃ 30V VW-1 32AWG.

72

ULTRAFLEXIBLE MINIATURE CABLES□ #28AWG SERIESSPECIFICATIONS

CommonConstruction

Conductor

Insulation
Size (mm2)

Details

Part No
3325
3311
3312
3313

Nos. of
Conductor

ShieldServed Shield

1

Approx. 35/0.08A

1.63φ(0.0642")

Approx. 72/0.08A

2.70φ(0.106")2
3
4

Approx. 60/0.08A
Approx. 85/0.08A

Material

Ov. Dia.(mm)0.0854 (#28AWG)

17/0.08A

0.9φ(0.0354")

JacketFlexible

Roll Size

PVC
WeightMaterial

Ov. Dia.(mm)1.48kg2.6φ(0.102")

Flexible PVC

Black305m (1,000Ft)

2.8φ(0.110")3.03kg3.47kg4.15kgException: Ov. Dia. of conductor insulation of Part No.3325 and 3313 is 0.85φ(0.0335")

ELECTRICAL & MECHANICAL
CHARACTERISTICS

Part No.
3325
3311
3312

DC Resistance at 20℃
Inner Conductor
Shield Conductor
0.099Ω／m (0.0302Ω／Ft)

0.22 Ω／m

29,7000.059Ω／m (0.0180Ω／Ft)( 0.0671Ω／Ft )15,2000.053Ω／m (0.0162Ω／Ft)

34,7000.045 Ω／m (0.0137Ω／Ft)

3313

COMMON CHARACTERISTICS

Flex Life(cycles)

32,400Must Withstand at AC 500V/60sec.

Voltage Breakdown

103MΩ・m Min. at DC 250V, 20℃

Insulation Resistance

21 N (per one core conductor)

Tensile Strength (26℃, 65%RH)

Non-Emigrant to ABS resin

Emigration-20℃〜+80℃ (-4°F〜+176°F)

Applicable Temperature

UL758 STYLE 2725 80℃ 30V VW-1

Standard

Exception: UL approval of Part No.3325 is STYLE 1571 80℃ 30V VW-1 28AWG.

□ #33AWG SERIESSPECIFICATIONS

Common Construction

Insulation

Conductor
Details

Size (mm2)0.0314 (#33AWG)

25/0.04A
Part No
3317
3318
3319
3320
3321

Nos. of
Conductor

ShieldServed Shield2

Approx. 42/0.08A

2.4φ(0.0945")

5

Approx. 80/0.08A

2.7φ(0.106")6

Approx. 82/0.08A

Flexible PVC

2.5φ(0.0984")

Roll Size

Color

Material

2.3φ(0.0906")

Approx. 56/0.08A
Approx. 62/0.08A

Material

Flexible PVC

JacketOv. Dia.(mm)34

Ov. Dia.(mm)0.7φ(0.0276")

WeightBlack/Gray

2.23kgBlack/Gray 305m (1,000Ft)

2.91kg2.9φ(0.114")Gray

2.31kgBlack

3.48kg3.70kgBlack

Exception: Ov. Dia. of conductor insulation of Part No.3317 and 3318 is 0.75φ(0.0295")

ELECTRICAL & MECHANICAL
CHARACTERISTICS

Part No.

DC Resistance at 20℃
Inner Conductor

3317
3318
3319
3320

0.6 Ω／m(0.183Ω／Ft)

3321

COMMON CHARACTERISTICS

Voltage Breakdown

Shield Conductor

Flex Life(cycles)

0.085Ω／m (0.0259Ω／Ft)

16,9000.063Ω／m (0.0192Ω／Ft)

32,2000.046Ω／m (0.0140Ω／Ft)

54,0000.065Ω／m (0.0198Ω／Ft)

27,6000.047Ω／m (0.0143Ω／Ft)

49,100Must Withstand at AC 500V/60sec.

Insulation Resistance

103MΩ・m Min. at DC 250V, 20℃

Tensile Strength(26℃, 65%RH)

9.5 N (per one core conductor)

Emigration

Non-Emigrant to ABS resin

Applicable Temperature-20℃〜+80℃ (-4°F〜+176 °F)

Standard

UL758 STYLE 2725 80℃ 30V VW-1 33AWG□ STANDARD COLOUR COMBINATION OF SHIELDED CORES
Nos. of Cores
Core Color

Exception

73

1

White

Part No. 3316

2

White/Red

3

White/Red/
Black

White/Yellow/Blue/Green

4

White/Red/

Black/Yellow

5White/Red/Black/
Yellow/Blue

6

White/Red/Black/

Yellow/Blue/GreenAPPENDIX

How to read catalog data

1.ELECTRICAL CHARACTERISTICS
With regard to electrical characteristic of a cable, necessary parameter changes at low
frequency and high frequency.
Low Frequency (Length of cable is short compared to signal wavelength)
・Direct Current Resistance (heat loss of its conductor is determined)・Capacitance (storable quantity of electrostatic energy is determined)
・Dielectric Power Factor (heat loss of dielectric is determined)
・Insulation Resistance (direct current resistance of insulation)・Inductance (storable quantity of magnetic energy is determined)
High Frequency (Length of cable is long compared to signal wavelength)
・Characteristic Impendance (reflectance of electromagnetic wave is determined)
・Velocity Ratio (propagation velocity of electromagnetic wave is determined)
・Attenuation Constant (heat loss of electromagnetic wave inside cable is determined)
Difference (borderline) between low frequency and high frequency for a cable isdetermined if reflection of transmitted electromagnetic wave matters or not. If it does notmatter it is low frequency, and if it does it is high frequency. This borderline lies in thecable length that is about 1/10 of transmitted electromagnetic wavelength. The reason
why reflection of electromagnetic wave does not matter at low frequency lies in that
affection by reflection is fainted (fade out) while signal does not change almost at all.
When it is looked at from cable side,
Cable Length / Transmitted Electromagnetic Wavelength << 1: Low Freuquency
Cable Length / Transmitted Electromagnetic Wavelength >> 1: High Freuquency
Never forget this, as it is not determined by extent of frequency. In case signal
waveform is other than sine wave, it is compared with the highest frequency component(spectrum) wavelength.
Wavelength of electromagnetic wave is given by following equation.
λ = Vp / f

hereby, λ = wavelength of electromagnetic wave (m)Vp = phase velocity of electromagnetic wave (m/s)
f = frequency of electromagnetic wave (Hz)Phase velocity of high frequency is calculated by following equation.
Vp = c＊Vr
hereby, c = light velocity in vacuum (299,792,458 m/s)
Vr = velocity ratio of cable (0 < Vr <= 1) = 1 / sqrt(εs)εs = (equivalent) relative permittivity of cable dielectric (1 <= εs)74

Relative permittivity of polyethylene is about 2.3, therefore velocity ratio of polyethylene
insulated coaxial cable at high frequency is about 0.66. Velocity ratio at low frequency
range becomes smaller than that at high frequency range.
Electrical characteristic at low frequency is called primary parameters in transmission
line theory and that at high frequency is called secondary parameters.

As far as energy transmission is concerned, above characteristic factors are enough,however, there are cases that the following characteristic must be

considereddepending on applications.
・ Microphonics phenomenon that cable itself becomes a generator
by mechanical vibration
・ Shielding effectiveness Countermeasure against electromagnetic couplingwith other circuit
Microphonics is a noise caused by static electricity generated by mechanical vibration,etc., it becomes problem when a cable is used at high impedance circuit.
Shielding effectiveness involves all of different physical mechanism countermeasureagainst Conductive Coupling (Common Impedance Coupling), Electromagnetic
Coupling (Mutual Inductance Couplig), Capacitive Coupling (Mutual Capacitance
Coupling) and Electromagnetic Wave Coupling (Radiation Field Coupling), therefore
special care is required. Namely, this word itself is obscure.

2.DIRECT CURRENT RESISTANCE
DC resistance of electrical cable is determined by conductor structure and usedtemperature, therefore it is indicated at 20 degree C normally. (Note 1)

Electrical resistance of metal at around normal temperature can be roughly calculated
by following equation.

Rt = R0＊(1 + α＊(t - t0))
hereby,Rt = resistance at temperature t (Ohm)
R0 = resistance at reference temperature t0 (Ohm)t0 = reference temperature ( ℃)t = around normal temperature (℃)
α = constant

Typical value of α are the followings.
α value for common metals

CopperTin

GoldSilverAluminumIron

4.3e-34.5e-34.0e-34.1e-34.2e-3

6.6e-3

In case of alloy, a very small amount of additional element afffects it largely. For
example, in case of 0.3% of tin included copper-tin alloy is about 3.65e -3 / ℃.

When temperature becomes low, electron scattering generated by atomic thermal
motion is reduced which is called phonon scattering, resistance decreases

proportionally to the fifth power of the absolute temperature, and at further lower
temperature, electrical resistance generated by collision between electrons

75

decreases proportionally to the square of the absolute temperature, following relation isknow at wider temperature range which is called Matthiessen's Law.

Rt = Rmin + a＊t^2 + b＊t^5 + c＊t
hereby,Rt = electrical resistance at temperature t(K) (Ohm)Rmin = lowest electrical resistance determined by
impurities (Ohm)t = temperature (K)a, b,c = constant fixed by characteristic of respective metal

However, at further lower temperature, there are some substances that becomessuper-conductive, which is out of this application range.

By the way, since we call it DC resistance, resistance value changes with flown
frequency.

AC resistance is determined by frequency and conductor structure involving its

periphery (surroundings), it is always larger than DC resistance. Majority of its cause isconductor skin effect, and affection of eddy current generated in other conductors is
added to it.

Since AC resistance is proportional to the square root of frequency when frequency
becomes high, there is a distinctive feature that cannot be found in other parts that

attenuation at high frequency also increases proportionally to the square root of
frequency. This becomes the cause that makes it hard to compensate it by general circuitcomponent. However, because of recent development of LSI that can be stuffed withplenty of parts, it became possible to compensate pretty well so that it has become

possible to manage up to very high frequency and or long distance that had been
regarded impossible to transmit signal by cable in the past.
Then, up to how much of frequency DC resistance value can be used, there is anexpedient indicator called skin depth, if thickness of conductor (in case of column it
becomes radius of it) is sufficiently small compared to 1.5 times as large as skin depth,
DC resistance and AC resistance do not differ almost at all.
δ = sqrt(2 / (ω＊μ＊σ)
hereby,δ = skin depth (m)ω = angular frequency (rad/s)= 2＊π＊ff = frequency (Hz)π = 3.141592..
μ = magnetic permeability (H/m) .. in case ofnon-magnetic material 4e7＊π
σ = conductivity (G/m) .. in case of annealed copper
5.80e7.. in case of hard copper 5.65e7

Note 1 - Temperature Correction
For example, in case of JIS C 3005, the following value is used, considering electron
collisions.

R20 / Rt = 1 - (0.003945 - 1.55e-5＊(t - 20))＊(t - 20)
hereby,R20 = electric resistance at 20℃ (Ohm)Rt = electric resistance at t ℃ (Ohm)t = temperature ( ℃)

However, it does not mean that JIS C 3005 used this formula, but it was worked out(calculated) by myself out of the table listed there.

76

3.CAPACITANCE
1. Capacitance of multi-conductor system
In case of a two conductor system that is electromagnetically separated from theexternal space such as coaxial cable, capacitance is simple so that it is enough toindicate capacitance value between internal conductor and outernal conductor in its
specification. However, capacitance of multi-conductor system comprised of over three
conductors is not so easy.
This reason is that capacitance value is not only determined by the structure of thecable, but its effective capacitance value is varied by used circuit structure of thecable.
Therefore, the specification of the cable must describe the cable-specificcharacteristics not depending on how to use.

2. Partial capacitance
The most suitable parameter for this purpose is the partial capacitance which is defined inelectrical engineering as follows. (Note 1)

Q1 = K10＊V1 + K12＊(V1-V2) + .... + K1n ＊(V1-Vn)
Q2 = K20＊V2 + K21＊(V2-V1) + .... + K2n ＊(V2-Vn)………………………………………………………………
Qn = Kn0＊Vn + Kn1＊(Vn-V1) + .... + Kn.n-1＊(Vn-Vn-1)
where, Qr = charge of the r-th conductor (C) (0 <= r <= n)Vrs = potential difference between r-th conductor and0-th conductor (V)(0-th conductor is the overall shield)
Krs = partial capacitance between r-th conductor
and s-th conductor (F) (0 <= r, s <= n)When there is no overall shield, the earth (ground) is considered to be the first (0)conductor.
Krs is called mutual capacitance or partial capacitance between r-th conductor ands-th conductor. Kr0 is called self capacitance or earth capacitance. These parameters
are totally defined by the dielectric properties of the insulator and the geometric positional
relationship. Therefore, it would be proper that all of them are regarded as partial
capacitance as an electrical circuit point of view.
Please note that partial capacitance is interpreted as a circuit about relation between charge andpotential difference of multi conductor system.
For example, in case of a shielded 2-conductor, it becomes as shown in Figure 1.
Hereby, K10 = K20 is held by Green's reciprocity theorem.

K10

K12
1

K20
2

Fig. 1 : partial capacitance of shieded
2-conductor cable773. Partial capacitance measurement and calculation
Since it is not possible to measure partial capacitance directly, it shall be obtained bysolving the linear equation of the combinations of measurable partial capacitancevalues.
For example, We can make following procedure for Fig.1.
1. Measure the capacitance C1 between the first conductor andoverall shield, while the second conductor is shorted with overall
shield.
2. Measure the capacitance C2 between the second conductor andoverall shield, while the first conductor is shorted with overall shield.
3. Measure the capacitance C12 between shorted first and second
conductor and overall shield.
Calculates K10, K12, K20 by next relations.
K10 = (C1 - C2 + C12) / 2
K12 = (C1 + C2 - C12) / 2
K20 = (C2 - C1 + C12) / 2
For general multi-conductor case, see Note 1.
In case of numeric calculation, proceed these partial capacitance value measurement
setting up multiple potential boundary conditions like this.
Calculation itself is just to solve Laplace equation so that it is rather easy. It is usually
done by finite element method. However, in case there is no shielding conductor, it
becomes a problem of open area so that it needs contrivance.

4. Effective capacitance in actual use

K0

K1

K0

Fig. 2 : partial capacitance of shielded
2-conductor cable

Once the partial capacitances are known, effective capacitance in actual use can be calculated

simply as series-parallel circuit. And this becomes the job done by cable users.
For example, in case of shielded 2-conductor like a microphone cable, it can be
rewritten as shown below due to the symmetry.
K0 = K10 = K20
K1 = K12
We can get
differential mode capacitance = K1 + K0 / 2
common mode capacitance = K0 ＊2 (capacitance between
shorted 2-conductor and shield)
capacitance between one conductor and shield that is shortedwith another conductor = K0 + K1

78

5. Frequency and temperature dependency of capacitanceThe capacitance value defined in specification is regularly the value at 20℃ 1kHz. In
case of good high-frequency characteristic material with non-polar molecule, such aspolyethylene, there is very little frequency characteristic so that it stays constant at wide
frequency range and temperature. While in case of many other polar molecule materials
such as PVC compound (polyvinyl chloride blend), both of capacitance and dielectricloss depend on frequency largely and vary at temperature largely, too, you should be
careful.

6. NoteNote 1 - Relation between coefficient of electrostatic capacity and partial capacitance
Relation between the potential and the charge of multi-conductor system is defined bycoefficient of potential or coefficient of capacity in electromagnetic theory. It is shownby coefficient of capacity as follows:
Q1 = C11＊V1 + C21＊V2 + .... + Cn1＊Vn
Q2 = C12＊V1 + C22＊V2 + .... + Cn2＊Vn…………………………………………………
Qn = C1n＊V1 + C2n＊V2 + .... + Cnn＊VnCompared with the aforementioned partial capacitance definition, we get following
relation.
Ki0 = Ci1 + Ci2 + Ci3 + .... + Cin
Kij = -Cij (i != k, k != 0)
It is troublesome to interpret coefficient of capacity as a circuit element, but themeasurement is easy. For example, we can use the following procedure.
1. Measure Ci between i-th conductor and overall shield which is shorted with all otherconductors.
2. Measure Cj between j-th conductor and overall shield which is shorted with all otherconductors.
3. Measure Ci+j between shorted i-th and j-th conductor and overall shield which isshorted with all other conductors.
4. Calculate Cij by the following equation (relation).
Cij = (Ci + Cj - Ci+j) / 2
In other words, Cii, Cjj are directly measurable, Cij can be obtained by simple
calculation, Kij can be obtained by sign inversion of the Cij. As nCr is the number of
combinations to choose r from n, the number of measurements becomes
nC1 + nC2 = n + n!/2/(n-2)!
It becomes lots of work when number of conductors increase. But, there are symmetry
in many cases so that number of measurements could reduce. Since measurement ofcoefficient of electrostatic capacity can be performed with a minimum proceduresystematically, it is easier to measure the coefficient of electrostatic capacity at first, thenconvert into partial capacitance.

79

4.INDUCTANCE
The inductance of electric cable is not usually specified in the data sheets or catalog. The reason lies in thatinductance is not a problem in ordinary electric circuits. (Note 1) But there are still rare cases that need its value.
We have prepared the following explanation on how to estimate this value from catalog data.

1. Meaning of inductanceInductance of the circuit determines the magnetic energy stored in the circuit.
Wl = L ＊ I^2 / 2(1)

where Wl = the magnetic energy stored in the circuit (J)L = the inductance of the circuit (H)I = the current ﬂowing through the inductance (A)Please note that the magnetic energy does not exist if there is no current. This reason
becomes clear when we study the special theory of relativity.
In the case of electric cable, we can understand it clearly by separating total inductanceto two partial inductances in the following way. One is due to the electromagnetic energy
existing in inside conductor, the other is due to the external space of the conductor.
L = Li + Le
where L = the total inductance of wire (H)Li = the internal inductance of wire (H)Le = the external inductance of wire (H)In case of DC (direct current), uniform current flows through the entire cross section of the
conductor. But when the frequency of the current becomes higher, current isconcentrated in the conductor surface by the Skin Effect. As a result, internal inductancedecreases, and the total inductance of a cable converges to the external inductance ofthe cable.
In other words, separation of external and internal inductance is due to the Skin Effectphenomenon.
In addition, it must be noted that the inductance is defined for closed circuit loop.
(Note 2)

2. Estimate of the inductance value of a cableThus, we know inductance has frequency dependency, and the maximum value is theDC (Direct Current) inductance. And total inductance decreases with increased
frequency approaching to Le. Normally, inductance of the electric cable becomesalmost Le at about 10 MHz or higher frequency. There is no significant difference of Le(external inductance) in the value of the DC inductance and HF(high Frequency)
inductance. Therefore, we can make a rough estimate of the inductance value from thevalue at DC current (largest value) and high frequency (smallest value).

80

2.1. Inductance at high frequency

For normal electric cable, the following relationship is established at frequency of 10
MHz or more.
Z0 ～ sqrt(L / C)(2)

v ～ 1 / sqrt(L ＊ C)(3)

Vr = v / c ～ 1 / sqrt(εs)(4)

where Z0 = characteristic impedance of the cable (Ohm)v = phase velocity of electromagnetic wave traveling throughthe cable (m/s)
Vr = velocity ratio of the cable (0 < Vr <= 1)c = phase velocity of the electromagnetic wave in vacuum(2.99792458e8 m/s-deﬁned value, not measured value)εs = relative dielectric constant of the cable insulation (1 <= εs)
ZO and Vr are important properties as high frequency characteristics for a cable,
as an electric cable can not be used at high-frequency if ZO or Vr is not a constantvalue, therefore these two properties are always specified in catalogs or data sheets.
Any cable that can be used at high frequency must have a constant ZO and Vr
regardless frequency range. (Note 3)
Following relations are obtained by (2), (3) and (4) at high frequency.
L = Z0 / (c ＊ Vr)(5)

C = 1 / (c ＊ Vr ＊ Z0) (6)2.2. Inductance at direct current

The internal inductance of electric cable is varies by frequency. Maximum internal
inductance is obtained at direct current. For a non-magnetic cylindrical conductor, thismaximum value is as follows.
Li = 0.05e-6 (H/m)(7)

For a two parallel wire cable, we can estimate the DC inductance value by adding (5)and two times (7).
An analytical solution can be obtained easily in case of cylindrical conductor. But inother shapes, this is quite a cumbersome procedure. If interested, you can look at thefollowing text.
Frederick W. Grover,- Inductance Calculations (Dover Publications, Inc) ISDN
0-486-49577-9

It is a classic, but it is still available today.
In our time, it is practical to use a numerical method such as finite element method. The
following book is recommended.
P.Silvester,- Modern Electromagnetic Fields (Prentice-Hall, Inc.)

The author is famous for application of finite element method to electric engineering. It isa marvellous book in a way of clear and concise.

81

3. Note
3.1. Note 1 - The reason why inductance does not matter so much
Energy stored in the capacitance of the circuit is as follows.
Wc = C ＊ V^2 / 2
where

Wc = the electrostatic energy stored in the circuit (J)(8)

C = the capacitance of the circuit (F)V = voltage across the capacitor (V)Combining (8) and (1), we get,Wl / Wc = (I / (Z0 ＊ V))^2(9)

For most electric circuits, the large current is avoided to reduce heat loss (Joule heat).
Therefore, the following relationship is established,
I << (Z0 ＊ V), ie, Wl << Wc
this tends to reduce the effect of inductance compared to capacitance. In the case oflarge current flows such as an electric heater, the electrical resistance is greater than the
inductance, therefore the effect of the inductance is small as well.
In addition, following relation obtained from same (1) and (8) contains a problem worthyof consideration.
Wc ＊ Wl = (V ＊ I / (2 ＊ Vr ＊ c)) ^ 2(10)

3.2. Note 2 - Definition of inductance

It is important to note that the inductance is defined only for a closed circuit loop. In otherwords, the inductance of lead wire (open loop) is meaningless. There are many
misunderstandings on this point, we can see even in IEEE standard.
The inductance of electric cable is specified by inductance per unit length (H/m). This isthe value with both ends shorted and a long enough cable to neglect the end effect ofboth ends
And inductance or capacitance of electric cable is defined only for normal mode.
Capacitance and inductance of the common mode can not be predicted at the time of
shipment of the cable. These parameters depend on the wiring method in the field, which
often generates noise problems.

3.3. Note 3 - The reason why characteristic impedance
and velocity ratio are important

If the characteristic impedance of the transmission line is not uniform, energy loss byelectromagnetic wave reflection and distortion of the transmission waveform are
generated, therefore it is necessary to know the characteristic impedance value and also
velocity ratio to know the propagation time of a signal.
Also, if the propergation speed of electromagnetic waves is changed with frequency, itcauses distortion of the transmission waveform, so it must be constant as well.
On the other hand, Li << Le is formed at high frequency, it can be almost regarded as L
= Le on the whole.

However, inductance itself only plays a role, together withcapacitance, to delay electromagnetic wave propagation and it does not change thewave form. Therefore, non-ferquency-characteristic Le (at non-magnetic material) has no
relation to the distortion of the transmission waveform, and an imperceptible change of Li
by frequency change, in other words, caused eddy current such as skin effect, cause alarge distortion of the transmission waveform.

82

AS SUVENIER FOR ALL MOGAMI LOVERS AND CUSTOMERSSCREEN (SHIELD) MECHANISM FOR WIRE AND CABLE
In case of signal transmission among various cable applications, it is important to preventfrom getting mixed with noise and to reduce affection to external environment in addition
to fast transmission to the atmost without distortion nor large attenuation, so that various
kinds of noise countermeasure technics have been developed from old time.

Basical screen(shield)technique is tried to be explained hereafter. Please note that
there is reversibility between screen(shield) that protects from noise come from out sideand EMI (Electromagnetic Interference) that interferes outside from noise source cable.
Therefore, shield technique and interfering control technique become exactly same. In
other words, it is same to think about either way. (Note: 1)

1. Mechanism of being mixed with noise

The most important point when think about screen (shield) and or countermeasureagainst noise is to grasp the noise mixing mechanism exactly (accurately) which iscomprised of different mechanism. This different mechanism are following based onelectric circuit technique.

Coupling Type

Circuit Element

Noise Source

Coping Method

Conductive Coupling

Common Impedance Coupling

Eurrent or Voltage Source

Circuit Isolation

Capacitive Coupling

Mutual Capacitance Coupling

Voltage Source

Electrostatic Shield

Inductive Coupling

Mutual Inductactance Coupling

Current Source

Cancelling

Electromagnetic Wave

Radiation Field Coupling

Electricmagnetic Wave

Electromagnetic Shield

All of these property are undescribed part in electric circuit and they must be paid
carful attention that they are all different physical mechanism so that countermeasuremethod has to become quite different.

2. Conductive Coupling - Common Impedance Coupling
When multiple circuits such as earth wire, earth plate and or printed circuit board etc.,
share a same circuit element, noise is generated by flown electric current from othercircuits. In case of direct current or low frequency, it is easy to lower the value of common
impedance coupling by increasing earth conductor size. However, in case of highfrequency, it becomes not negligible because common impedance caused byinductance element increases proportionally to frequency.
Therefore, basical countermeasure becomes isolation of circuits so that earth wire isseparated with each circuit and made into single point ground so that GND potentialis
fixed. This method becomes principle.

Interesting point that happens with cable peculiarly among conductive coupling is thecase that external conductor of a coaxial cable becomes common impedance.

83

Noise Source
Outer Conductor
Center Conductor

Zs

Zs

Zc

Es

Z1

V1

Z1

Es

Outer conductor

Noise Source

Fig. 1: Common Impedance Coupling

Fig. 2: Transfer Impedance of a Coaxial Cable (Cross Section of a Coaxial Cable)

It is common case that electric current flows into external conductor of coaxial cablefrom other circuit as shown in figure 2. External conductor of coaxial cable is usually
grounded so that it is difficult to get rid of loop combined with other earth line, and eventhough this external conductor is not included in a loop, if there is electromagnetic wave
in its surrounding, external conductor works (performs) as an antenna so that electric
current flows by electromotive force caused by received electromagnetic wave. Please
remember that long cable becomes a good antenna.
However, as the frequency of transmitted signal and noise increases, majority oftransmitted signal flows inside of external conductor and noise current flows outside ofexternal conductor by skin effect so that this common impedance circuit isautomatically separated.

The following formula is useful to know how deep high frequency current flows in the surfaceof conductor, which is called as skin depth.
δ = sqrt(2 / (ω ＊ μ * σ))hereby,δ = skin depth (m) ..

In case of electrolytic cathode copper, it is 8.46e-2/sqrt(f)ω = angular frequency (rad/s) = 2 ＊ π ＊ f
f = frequency (Hz)π = 3.14519265..
μ = magnetic permeability of conductor (H/m) ..
In case of nonferrous metal, it is 4e-7＊π
σ = conductivity (G/m) ..
In case of electrolytic cathode copper, it is 5.8e7
Surprisingly, resistance value of 1.6＊δ thickness cylindrical conductor and same
overall diameter of columnar conductor does not differ more than several percentage.
For example, δ of electrolytic cathode copper at 100 MHz is 8.5 μm, so how this circuit
isolation mechanism is efficient.
Of course, as flown frequency becomes low, branched current from noise intotransmission line increases, it is necessary to know its frequency characteristic of thismechanism and this indicator so called Transfer Impedance is used for this purpose
which is defined as follows:
Zt = Vt / I
hereby,Zt = transfer impedance (Ohm)Vt = generated voltage on the surface of external
conductor per unit length (V/m)
I = current that flows internal conductor (A)84This is considering that how much signal current affects to other circuits so that thinking
it upside down. However, it does not matter because there is reversibility between
them, and it makes us not necessary to care for other circuits by this way of definition.
In case external conductor structure is cylindrical, current distribution can beshown(expressed) by Bessel function so that Zt can be obtained analytically. And, incase thickness of external conductor is small enough compared to its internal (inside)
diameter,it becomes as follows:
Zt / Rdc 〜 p ＊ t / sinh(p ＊ t)hereby,t = thickness of external conductor (m)Rdc = DC resistance of external conductor (Ohm)p = (1 + j) / δ
j = sqrt(-1)δ = skin depth (m) ..

In case of electrolytic cathode copper, it is 8.46e -2/sqrt(f)If frequency is zero, Zt is equal to DC resistance naturally, and as it becomes high, thisvalue decreases swiftly so that crosstalk with external circuit decreases.
In case of braided shield structure, since inside electromagnetic field leaks throughopenings between conductors, mutual capacitance and mutual inductance between
internal conductor and the surface of external conductor are generated so that transfer
impedance is added proportionally to frequency. Zt is increased proportionally tofrequency from around several MHz normally.
As countermeasure against it, polyester-film-reinforced aluminum foil is inserted
underneath the braided shield in geneal. It gives satisfactory result up to GHz
bandwidth, although cable loses flexibility.
Another interesting method as a countermeasure against conductive coupling for a
coaxial cable is to wind cable itself over a ferrite core so that self-inductance of the noise
circuit including external conductor increases, which is called Coaxial Choke. In thiscase, inductance consists of external conductor and other conductor circuit can beincreased without affecting electrical characteristic between internal conductor andexternal conductor circuit of the coaxial cable, therefore this method can reduce noise
current only without affecting signal circuit. This is same idea as Common Mode Chokethat is often used for countermeasure against common mode noise.

3. Capacitive Coupling - Mutual Capacitance Coupling
Capacitive coupling is caused by electrostatic induction by electric field generated byvoltage generator that arises noise. As an electric circuit, current flows into signal circuitfrom other circuit through (via) mutual capacitance Cm. Cm is normally considerably
small so that this impedance is large, therefore noise source becomes constant current
source for load Zl side. Therefore, when the impedance of the signal circuit is high(large), it becomes problem.

There is an extremely effective method called Electrostatic Shield against capacitive
coupling in addition to (other than) separating (setting apart) from high voltage
generator and reducing impedance Zs of the signal circuit.

85

Em

Noise Source

Noise Source

Em Cm

Shield Conductor

Cm
Zs

Zs
Es

Z1

V1

Es

Z1

V1

Fig. 4: Electrostatic ShieldFig. 3: Capcitive Counpling by mutual capacitanceThis method is to bypass noise current by enclosing signal line with conductor so-called
electrostatic shield and connecting to GND. Since impedance of this electrostatic

shield conductor is extremely low compared to capacitance between signal conductor
and electrostatic shield conductor, this baypass mechanism functions extremely
effective in deed. Of course, if there is openings in this shield conductor, mutual
capacitance between signal conductor and noise generator is arised so that noise
current is increased at high frequency.
Braiding, serving (spiraling) and conductive tape are usual shield structure used forwire and cable. Conductive tape without any opening is the most cost effective
structure, but it's weak point is inflexibility.

Serving (spiraling) is to wind manyannealed copper wires in a row (lay flat), so it becomes flexible and generated
openings between neighbour conductor is much less than braiding structure, but it's
weak point is uneasy production process and possibility of increased cross-talk athigh frequency in case of one layer structure. Brading structure has good balance of
flexibility and shielding effect so that this method has been used for varied cablestructures from coaxial cable's external conductor up to overall shield for multicore
cables from the old time. For counter-measure against openings between conductorsof braiding structure at high frequency, double brading structure or combination ofbrading structure and polyester-film-reinforced aluminum foil are often used.

4. Inductive Coupling (Electromagnetic Coupling) Mutual Inductactance Coupling
Noise Source

Em

Lm

Zs
Es

Z1

V1

Fig. 5: Coupling by Mutual InductanceElectromagnetic coupling is generated when magnetic flux generated by noise source
electrical current interlinks with signal circuit where electromotive force is generated bymagnetic flux so that this coupling is mutual inductance coupling in terms of a circuit. In
this case, noise becomes constant voltage supply so that affection by noise becomeslarger at low impedance circuit and even though feed end side (transfer end

side-sending end side) of a signal line is shorted, noise can be appeared at loadside. In other words,

86• In case load side noise disappears when feed end side
(transfer end side - sending end side) of a signal line is shorted,
it is mutual capacitance coupling• In case load side noise won't disappear when feed end side
(transfer end side - sending end side) of a signal line is shorted,
it is mutual inductance coupling
thus, we can isolate the cause by these judgement.
If magnetic flux generated by noise source electrical current does not interlink withsignal circuit, it is not affected by it, so that we want to think about magnetic shielding,however, there is not any appropriate magnetic material. Therefore, the following two
methods are used for counter-measure against inductive coupling by this reason.
1. Induction field cancellation by generated eddy current insideflat shield conductor
2. Mutual inductance cancellation (negation) by twisted structureor quad structure
The former method is the same structure as electrostatic shield in the point that the signal
conductor is surrounded by conductor, but, what is done is quite different even though it
looks similar because this mechanism is that generated eddy current flow inside shieldconductor cancels (negates) magnetic field penetrating the shield. It is an excellent
method in a point that it can be used for both as electrostatic shield and electromagnetic
shield. However, it cannot be used at low frequency range where generated eddy
current becomes low.
Strategy of the latter method is to utilize existence of plus and minus sign in mutual
inductance unlike mutual capacitance, combining same magnitude with opposite signmutual inductance to deprive (eliminate) mutual inductance in a whole circuit. It
functions well at relatively low frequency range. However, when frequency rises up high,it does not function well because of increased affection by stray capacitance.

Magnetic Flux

Magnetic Flux

Magnetic Flux

Magnetic Flux

Fig. 6: Cancellation of Electromagnetic Coupling by twisted pair structure(Arrow shows directon of electromotive force by noise)

The most often used method is twisted pair structure which is to twist two conductors ofa round trip of transmission line at fixed pitch so that direction of electromotive force
caused by interlinkage magnetic field is inverted at every pitch, so it can be canceledsequentially. As in terms of a circuit, mutual inductance becomes zero by inverting plus
and minus of mutual inductance with noise source at every pitch when it is contour
integrated. Otherwise interlinked magnetic field is same largeness between neighbour
pitch, it does not function. However, interlinkage magnetic field between neighbour
pitch can become very close to zero by making twisted pitch short and distance of two
conductors very close. It costs rather high to twist at short pitch, on the other hand there
are many advantages such as not sacrificing flexibility, so this technique is extensively
used. Besides, though it is touched later on once again, in case a twisted pair is used

87

for balanced transmission line, capacitance coupling with outside induction

voltage source becomes almost same strength so that capacitance coupling is
also canceled at the same time as well as electromagnetic coupling, so

effectiveness of two birds with one stone could be gained. The very reason why lan
cable can be used without overall shield lies in this point.
There are some othe mthods to cancel electromagnetic coupling, star-quadconfiguration is often used for a microphone cable that is used at a close distance froma large current dimmer.

y
3

＋ 2

２

x

１

３
４

4 ＋

Fig. 7: Cancellation of electromagnetic coupling by star-quad connection

1

Fig. 8: Cross section of star-quad connection and direction of induced electromotive force

Idea of this method is to short opposite (diagonal) conductors of a four conductor cable
to use it as one go and return conductor, considering X-direction of magnetic flux in Fig.
8 cross section, direction of induced electromotive force generated in conductor 1 and
2 loop and that in conductor 3 and 4 are reversed so that both induced electromotive
forces are canceld respectively.
This canceling mechanism becomes the same with Y-direction, therefore, canceling isdone in a small geometric scale as about twice as the insulation thickness so that it
becomes considerablly advantageous against non-homogeneity (ununiformity) of
induction field.
Twisted-pair-pitch is about 20 times of overall diameter of insulation even though it is
twisted densely, fineness of cancelling mesh of a quad configuration exceeds roughly
twenty times of star-quad structre so that it can be expected over 26 dB improvement.
This conductor structure and combination of conductors is same as phantom circuit ofa cabled telephone line, however, in case of cabled telephone line (phantom circuit),
diagonal pairs are used independently and they are also used for parallel connection as
the third line.

This technique secures three circuits by two twisted pair cables

preventing from large cross-talk so that it contributes cost down. In case of quad
structure of a microphone cable, it is quite different idea because its strategy is to
reduce mutual inductance by peripheral circuits being aware of cost-up.
Furthermore superior structure with regard to canceling function is a coaxial cable. Aslong as linkage magnetic flux is symmetry about its centre conductor, reversed direction

electromotive force is generated at both side of the outernal conductor of the coaxial
cable so that essentially perfect induced electromotive force cancellation is taken place.
In case of a coaxial cable made of perfect conductor whose electrical resistivity is zero,
electromagnetic field inside its cable does not leak outside of a cable, it can create an
independent space from any other circuit in terms of electromagnetic field, therefore, it
could be understood that there is no mutual inductance with any outside circuits,
considering reversibility.

885. Electromagnetic Wave Coupling
Both of electric field caused by capacitive coupling and magnetic field caused byelectromagnetic (inductive) coupling becomes weak inversely proportional tosquare of distance from the source, therefore affection becomes low sharply as it parts

from the noise source. In other words, strategy to set a signal circuit apart from a noise
source is very effective, so shielding and or canceling technique is utilized when it(separation) cannot be used.
On the other hand, electromagnetic wave does not attenuate inversely proportional tosquare of distance from the source different from sole electric field or megnetic field, but

it attenuates inversely proportional to distance from the source so that it affects to the

distance up to extremely far away. This nature is utilized for radio communication suchas broadcasting.
This situation can be understood quite well by observing a generated electromagnetic

field inside small loop or infinitesimal dipole whose circuit size is small enoughcompared to wavelength. For example, centre of infinitesimal loop is set to be originof x-y-z coordinates, and loop plane is set on x-y plane, electromagnetic field isexpressed as shown below:
Hr = I＊A/λ＊(j/r^2 + λ/2/π/r^3)＊cos(σ)
Hσ = π＊I＊A/λ^2/r＊sqrt(1 - (λ/2/π/r)^2 + (λ/2/π/r)^4)＊sin(σ)
Eφ = Z0＊π＊I＊A/λ^2/r＊sqrt(1 + (λ/2/π/r)^2)＊sin(σ)
hereby,r = distance from the centre of infinitesimal loop (m)σ = angle between straight line connecting origin andobservation point and Z-axis (rad)φ = angle between straight line connecting origin andobservation point and X-axis (rad)Hr = magnetic field at straight line connecting origin andobservation point direction (A/m)
Hσ = magnetic field at surface direction including straight line
connecting origina and observation point and Z-axis (A/m)
Eφ = electric field at X-Y-axis surface direction (at loop plane) (V/m)
A = area (square measure) of loop (m^2)
I = electrical current flow in loop (A)λ = wavelength (m)= 3e8/f
f = frequency (Hz)r = daistance between centre of loop and observation point (m)Z0 = free space impedance (Ohm)= 120＊π = 377
j = sqrt(-1)
Considering X-Y-axis surface (loop plane) whose electromagnetic field is large, it isseparated into the following two cases:
1. Adjacent area (r << λ/2/π in other words, in case of r << 4.8e6/f)
H = I＊A/4/π/r^3 (A/m)
E = Z0＊I＊A/2/λ/r^2 (V/m)

89

2. Far field (λ/2/π << r in other words, in case of r >> 4.8e6/f)
H = π＊I＊A/λ^2/r (A/m)
E = Z0＊π＊I＊A/λ^2/r (V/m)
Electrostatic induction and electromagnetic induction are the leading factor at adjacentarea, whose strength is weakened inversely proportional to square of distance from thesource, because opposite direction electrical current exists quite close insideinfinitesimal loop, magnetic field from infinitestimal loop at a little far area is canceled and
it attenuates rapidly inversely proportional to cubes of distance from the source. And,electromagnetic field at far field attenuates slowly inversely proportional to distance fromthe source, so it's affection spread out extensively.
In case of tying infinitestimal loops into a row, electrical current component crossing atright angle against the line cancels each other so that it becomes zero and it becomessame as parallel two conductor transmission line, therefore, it becomes sametransmission line characteristics as parallel two conductor cable as it is, so electric field
at far area by round trip current of small conductor distance parallel two conductor cableaccords with the value replacing area (square measure) of round trip conductors withthat of infinitestimal loop as shown below.
E = 120＊π^2＊I＊s＊h/λ^2/r (V/m)
hereby,E = electric field at far area by round trip current of a parallel
two conductor configuration (V/m)
I = current (A)s = length of a parallel cable (m)h = distance between two conductors of a parallel cable (m).. h << λλ = wavelength of round trip curremt of a parallel cable.. 3e8＊coefficient of velocity/frequencyr = distance between central axis of a parallel cable andobservation point (m)Hereafter, when centre of infinitestimal dipole is set origin of Y-axis of x-y-z coordinates,
electromagnetic field is expressed as shown below:

Er = 60＊I＊s＊(1/r^2 - j＊λ/2/π/r^3)＊cos(σ) (V/m)
Eσ = Z0＊I＊s/2/π/r＊(1 - (λ/2/π/r)^2 + (λ/2/π/r)^4)＊sin(σ) (V/m)
Hφ = I＊s/2/λ/r＊(sqrt(1 + (λ/2/π/r)^2)＊sin(σ) (A/m)
hereby,I = current flows in dipole (wire) (A)s = length of dipole (wire) (m)Considering X-Y-axis surface whose electromagnetic field is large, it is separated into
the following two cases:
1. Adjacent area (r << λ/2/π in other words, in case of r << 4.8e6/f)
H = I＊s/4/π/r^2 (A/m)
E = Z0＊L＊s＊λ/8/π^2/r^3 (V/m)

90

2. Far field (λ/2/π << r in other words, in case of r >> 4.8e6/f)
H = I＊s/2/λ/r (A/m)
E = Z0＊I＊s/2/λr (A/m)
Electric field at adjacent area is inversely proportional to cubes of distance from thesource, not inversely proportional to square of distance from the source, lies in that
positive charge and negative charge are set very close dipole structure so that electricfield at a little far away is canceled by them.
Difference between infinitestimal loop and infinitestimal dipole is deeply understoodwhen comparing ratio of electric field and magnetic field E/H (Ohm), in other words,
comparing wave inpedance (surge impedance - characteristic impedance). In case of
infinitestimal dipole, wave impedance is extremely high at short distance, and it
becomes smaller as distance becomes larger and finally it accords with wave
impedance of free space (120＊π) at far field.

On the other hand, in case of

infinitestimal loops, wave impedance at short distance is very low on the contrary, and it
increases as distance becomes larger and finally it accords with wave impedance of
free space (120＊π) at far field. Therefore, in either way, as long as it isapart from origin (source) of electromagnetic wave far away, both segment accord
with each other because of under control of free space in either way. In other words,
they show antithetical characteristic at short distance.
When considering coupling with external circuit, although largeness of electric field andmagnetic field is reversal between infinitestimal loop and infinitestimal dipole at shortdistance, it is far from wave impedance at free space in either way, efficiency asantenna is not good because of mismatching with free space impedance.
The other way, as area (square measure) of loop and or length of dipole becomes close
to 1/4 wavelength of high frequency current, wave impedance at adjacent area
becomes close to the wave impedance at free space, so that it functions as antenna
effectively. Since wire and cable are long, it is common that shield acts as an antenna.
Therefore, commonly ferrite beads are inserted at a certain interval as its
countermeasure to prevent from emission or making hard to flow receiving current.
Only method to screen (shield) from electromagnetic wave is to wrap a whole circuitwith high conductivity case (chassis), joint utilizing electromagnetic wave reflection
generated between outernal space and case and attenuation by eddy current loss
generated inside case material.
Reflection loss among these two factors is determined by ratio of wave impedance
between free space and inside conductor, which is as shown below:
R = 20＊log10(sqrt(σ/(ω＊μ＊ε))/4)
hereby,R = reflection loss (dB)
σ = conductivity (S/m)= σs ＊ 5.80e7 (S/m)σs = conductivity (specific conductivity against cathode copper)
μ = magnetic permeability (H/m)= μs ＊ 4e-7 ＊ π
μs = relative permeability
ε = dielectric constant (F/m)= εs ＊ 1e7 / (4 ＊ π ＊ c^2)εs = relative permittivity

91

c = 299,792,458 m/s (velocity of light in a vacuum)ω = angular velocity (rad/s)=2＊π＊f
f = frequency (Hz)Attenuation loss is determined by skin depth and thickness of used material, which is asshown below:
A = 20 ＊ log10(exp(t / δ))
hereby,A = attenuation loss (dB)t = thickness of shielding material (m)δ = skin depth (m)Total shielding effect is sum of reflection loss and attenuation loss, and reflection
loss is decreased inversely proportional to the square root of frequency, but attenuation

loss radically increases at high frequency so that this mechanism functions effectively athigh frequency. However, if there is a hole inside case, electromagnetic wave leaks
through it, it becomes major problem how to take measure against openings

Moreover, in case of electric field, reflection at exterior surface of shield material is large,
so that attenuation loss effect becomes secondary. On the other hand, in case ofmagnetic field, reflection at interior surface of shield material is large so that attenuation
loss inside becomes more important, because of limitation of available material it is hard
to realize large attenuation. In any case, it can be understood that high conductivity
material is required for this purpose.
Also, as a counter-measure against EMI (Electro-Magnetic Interference), because

distance between shield and object circuit is reversal, it must be paid attention that far
field must be considered in case of shield (screen), and adjacent area must be
considered in case of EMI.

6. Counter-measure against Common Mode
Chassis

I1
R
S

I2

h
S

Cp
I3

Earth
Fig. 9 : Common-mode current (i3) - Impedance of Cp is low because of high frequency

When considering electromagnetic field generated by infinitestimal loop and or
infinitestimal dipole, it is understood that the most efficient method is to make the circuit
size small enough comparing wavelength. However, in case of transmission by cable,
because length of wiring is long, in case of single end (unbalanced) transmission,use coaxial cable or utilize twisted pair cable reducing loop area to reduce current flow
into ground (earth) as its home. Commonly used fundamental countermeasure is to let
it differential circuit (balanced circuit) and use twisted pair cable so that signal current
won't flow through ground (earth) in principle Nevertheless, there remain unbalanced

part of a circuit somewhere, part of signal current will flow through ground (earth), inother words, Common Mode component has to be generated.

92

Because area where common mode current flows is extremely large, even though it is aminute unbalanced part, it occupies majority of general electromagnetic interference,
therefore turning point (critical point) is how to reduce common mode current flow forhigh frequency transmission line.
Only counter-measure against it is to increase degree parallelization of a circuit and touse common mode choke such as ferrite beads and or ferrite core which became to be
used a lot in today's electronic equipment.
Please note that cable shield does not work at all against common mode current hereby.
Because thick conductor becomes excellent antenna, it (shield) has the opposite effect.
There are not a few cases that it expands damage on the contrary by shielding
electromagnetic wave and or overall shielding of a cable as a counter measure against
EMI.

Progress of LSI revolutionized electronic technology, differential transmission like Fig.
9 has been used in wide range of field in cable transmission by widespread Differential
Drivers And Receivers.

Twisted Pair Cable is used in this case to reduce electromagnetic coupling (inductive
coupling), in case of differential transmission and twisted pair cable, it becomes
possible to cancel capacitance coupling with external voltage generator as well as

electromagnetic coupling at the same time, so killing two birds with one stone effectis obtained. This is the reason why shield is not required for LAN cable. (Note: 3)

Further, since electromagnetic coupling becomes lager as frequency becomes larger,
counter-measure by electric circuit to reduce high frequency component included insignal current is important so that those technique are often used such as delaying
pulse risetime and or giving temporal fluctuation to clock to disperse spectrum
constituent of signal waveform.

7. Note
7.1 Reversibility

Reversibility of common impedance, mutual capacitance and mutual inductance isself‐evident (obvious), in case antenna is used for signal transmission and signal
receiver, it can be also verified to be reversibility, so it can be understood it is same
situation to think about shield and emission. For example, please refer the following
book: Name of Japanese book: VHF antenna
Author: Hidenari Uchida, Yasuto Mushiake
Publisher: CORONA

pp33-38, 47-50

7.2 Electromagnetic coupling and wiring method (connection method)

There are interesting comparison data between several wiring method (connection
method) with one end ground (single point ground) of shielded one conductor cable,
twisted pair cable and overall shielded twisted pair cable shown in "Milton, R.T.,- Design
Handbook Electromagnetic Compatibility, N.Y., General Electric Co., 1963.
These data show comparison of electromagnetic coupling (magnetic shield) at
relatively low frequency. Comparison criterion (1) separates capacitance coupling bygrounding shield conductor, however electromagnetic coupling with noise source islarge because of a large loop through (with) earth.

93

(1) 0 dB (Comparison Criterion )(2) -5 dB(3) -57 dB(4) -49 dB(5) -64 dB(6) -64 dB(7) -71 dB((8) -2 dB

7.3 Cancellation of Mutual Capacitance

Capacitance coupling at unbalanced circuit is unrealizable, in case of differential
transmission, conductors are grounded to be capacitance between induced potential
source and two conductors of differential transmission becomes the same, samelargeness induced current flows into both of reciprocating conductor (go and returnconductor), it can become zero by subtracting them at receiving‐end. In other words,
affection by mutual capacitance can be made into only common mode.
Further, when this two conductors are comprised of a twisted pair, as long as distancefrom induced potential source is reasonablly long enough, mean distance from induced
potential source becomes same for these two conductors so that mean mutual
capacitance for these two conductors become same.
This situation is indicated as shown below circuit, current generated by voltage noise
generation source En flow in conductor 1 and 2 through mutaul capacitance C1 and C2
and then back flow current flows through impedance to ground corresponding to eachconductor Z1 and Z2, therefore, as long as C1=C2 and Z1=Z2, noise voltage generated
between these two condcutors becomes zero, consequently it becomes into abalanced state of Bridge Circuit. In other words, it istaken place that capacitancecoupling is canceled by bridge circuit.

En
C1

C2
Vn

1
Z1

2
Z2

94

In case of overall shielded twisted pair structure, because shield conductor

becomes induced potential source, when degree of balance of capacitance between
each conductor and its shield conductor is not good, this cancellation mechanism
become not effective so much, therefore it is supervised (controlled) by indicator called
Capacitance Unbalance as indicated below.

There are some difinitions for thisCapacitance Unbalance, so the value differs depending on standards. In any case, it
is difined that it becomes zero when it is perfectly balanced.
Cu = 400 ＊ (Ca - Cb) / (2 ＊ (Ca + Cb) - Cc)
hereby,Cu = Capacitance Unbalance (%)
Ca = Capacitance between Condcutor 1 and Shield while
Conductor 2 and Shield are shorted (F/m)
Cb = Capacitance between Conductor 2 and Shield while
Conductor 1 and Shield are shorted (F/m)
Cc = Capacitance between Conductor and Shield while
Conductor 1 and 2 are shorted (F/m)

7.4 Physical property of shielding materials
Material

σs

μs

σs＊μs

σs/μs

Copper1

1

1

1

Silver

1.05

1

1.05

1.05

Gold

0.7

1

0.7

0.7

Aluminum

0.61

1

0.61

0.61

Brass

0.26

1

0.26

0.26

Bronze

0.18

1

0.08

0.08

Tin

0.15

1

0.15

0.15

Lead

0.08

1

0.08

0.08

Nickel

0.2

100

20

2e-3

Stainless Steel (SUS-430)

0.02

500

10

4e-5

Carbon Steel (SAE 1045)

0.1

1000

100

1e-4

Super Permalloy (1 kHZ)

0.03

1e5

3000

3e-7

Frequency characteristic of magnetic materials is large and dispersion by material isquite wide so that these yardsticks are not useful so much as a reference.

95

INDEX (PART NO.)
Part No.

Page

2319-00652326-0836
2330-00
15,16
2333-00
15,16
2368-00
15,16
2381-00
33,34
2435-00
11,12
2444
69,70,712447-00
11,12
2477-00
68
2477SSXX
68
2490-08
69,70,712497-00
15,67
2497PPXX
63
2514
65
2515
65
2516
65
2520
65
2524-00
61
2526
65
2534
6,7,8
2537-0843,44
2543-0843,44
2546-08
33,34
2549
9,10
2552-00
6,11,122579-08
53
2582
11,12
2642-0860
2673-00
43,44
2680
69,70,712689-0853
2690-0853
2691-0853
2697-00
13,14
2739
69,70,722754-08
69,70,72
2757-00
60
2769
69,70,712780-00
69,70,72
2784
69,70,722789-0060
2790-00
69,70,722791-00
6,9,102792
11,122794-00
69,70,72
2799-0827,28
2803-00
15,63,66-68
2803PPXX
63
2804-00
64,66-68
2804SSXX
64
2806-0827,282814-0060
2820-0827,28
2835-0859
2840-0859
2841-08592842-08592843-08
59

Part No.

Page

2845-0859
2847-08592848-08592849-0859
2851-08592859-00
43,44
2861-08592862-08592863-08592864-0859
2865-0859
2866-0859
2871-0060
2879-08
69,70,71
2880-00
69,70,722893
2,3,4,5,6,7,8
2895-00
33,34
2901-00
13,14
2912
69,70,712919-00
30,32
2921-00
30,32
2929-00
69,70,72
2930-00
24
2931-00
24
2932-00
24
2933-00
24
2934-00
24
2935-00
24
2936-00
24
2937-00
24
2938-00
24
2939-00
23,24
2941-00
30,32
2943-00
69,70,722944
27,282947-00
35
2948-00
45,462964 2,3,4,5,6,33,34,37,40
2965-00
2972-00
2997-00
2997-FC
3027-08
3031
3033-00
3040-00
3041-00
3042-00
3043-00
3044-00
3045-00
3046-00
3047-00
3048-00
3049-003080
3080-FC
3080-TB
3082-00

2,3,5,6,21
30,31
55,56
55
43,44
13,14
45,46
24
24
24
24
24
24
24
24
24
24
47,48
47
47
29

Part No.

3103-00
3104-00
3106-00
3135-00
3145-00
3146-00
3147-00
3156-00
3157-00
3158-003159
3160-00
3161-00
3162-00
3163-00
3172-00
3173-00
3177-18
3178-18
3200-00
3227-083228-00
3242-00
3243-00
3284
3306-00
3306-TB
3308
3309
3311-00
3312-00
3313-00
3314-08
3315-08
3316
3317
3318-083319
3320-00
3321-00
3324
3325-00
3349-00
3351-00
3367
3368-00
3381
3.5mm Plug
3B3B-02
3B3B-03
3B3B-05
3B3B-08
3B3B-10
3B3B-15
3B3B-20
3B3B-30
4B4B-02
4B4B-03
4B4B-05

Page

30,31
30,31
17,18,21
47,48
37,38
37,38
37,38
37,38
37,38
37,38
47,48
47,49,50
47,49,50
47,49,50
47,49,50
19
47,48
17,18
17,18
33,34,40
54
2,3,47,48
22
35
9,10
57
57
70,73
70,73
70,74
70,74
70,74
70,73
70,73
70,73
70,74
70,74
70,74
70,74
70,74
70,73
70,74
20
33,34
58
62
58
21
41
41
41
41
41
41
41
41
41
41
41

Page

Part No.

Page

4B4B-0841
4B4B-1041
4B4B-1541
4B4B-2041
4B4B-30
415016XX
56
5086XX
595139-03365139-0636
5139-1236
5139-2036
5139-3036
5139-5036
5139-7536
5139-10036
5B5B-0241
5B5B-0341
5B5B-0541
5B5B-0841
5B5B-1041
5B5B-1541
5B5B-2041
5B5B-30
41
BB-01
4,41
BB-02
4,41
BB-03
4,41
BB-06
4,41
BB-10
4,41
BB-16
4,41
BB-25
4,41
BB-33
4,41
BB-50
4,41
BB-66
4,41
BB-1004,41
BNC-2964
39,40,42
BNC-2964C
40,42
BNC-3200
40,42
BNC-3200C
40,42
BNC-TNT-50
41
BNC-TNT-50S
41
BNC-TNT-75
41
BNC-TNT-75S
41
BR-03
4,41
BR-06
4,41
BR-10
4,41
BR-16
4,41
CWB-T0276/T0277 42
IHE-0322
IHE-0522
IHE-10
22
LF-18
3
LF-24
3
LF-36
3
LF-48
3
LF-72
3
LF-TNT
6
MIDI-01545
MIDI-015D
45
MIDI-0345

Part No.

MIDI-03D
MIDI-05
MIDI-05D
MIDI-10
MIDI-10D
MIDI-15
MIDI-15D
MIDI-20
MIDI-20D
MIDI-30
MIDI-30D
PJD-12
PJD-18
PJD-24
PJD-36
PJD-48
PJD-60PJD-72
PJM-12
PJM-18
PJM-24
PJM-36
PJM-48
PJM-60
PJM-72
PJM-TNT
PP-01
PP-03
PP-06
PP-10
PP-15
PP-20
PR-01
PR-03
PR-06
PR-10
PR-15
PR-20
RR-01
RR-03
RR-06
RR-10
RR-15
RR-20
SS-01
SS-03
SS-06
SS-10
SS-15
SS-20
T90-28
WR-01
WR-03
WR-06
WR-10
WR-15
WR-20

45
45
45
45
45
45
45
45
45
45
45
3,47
3,47
3,47
3,47
3,47
3,47
3,47
3
3
3
3
3
3
3
6
4
4
4
4
4
4
4
4
4
4
4
4
3
3
3
3
3
3
4
4
4
4
4
4
42
3
3
3
3
3
3

96

Cables are long term products, and cable failure often results inproblems in which the original cause is extremely difficult to detect.
Choosing a reliable, long life, and multiple application cable from thestart, is the key to safety, efficiency, and getting the best value.
Always select a quality product, and use it at great length to better
coexist with our precious earth.

97

All given characteristic data provided in this brochure are typical values. Product specifications are subject to change without notice.

Special thanks to :Manabu Hirabayashi and Hajime Nakanishi, for providing specifications (technical and graphical data.)
Yasuhiro Nakano, for providing numbers and measured data.
Leonard Marshall, for a substantial business collaboration that made this possible.
John Caldwell, Phil Tennison, and Matthew Fletcher for assistance in the composition of the English copy.
Kazue Akiyama, for additional photographs. Hiroaki Kobayashi, for overall catalog design.
The many colleagues at MOGAMI, our vendors of raw materials and parts, and our global distributors,
working with us today and throughout our past.
All our customers around the world who have continued to support our lives.

The last edition by ©

sales@mogami-wire.co.jp
More detailed technical information on this catalog can be found at the following URL.

http://www.mogami.com