Amphenol
FilteredConnectors
Filtered ARINC
Connectors
Filtered MIL-C-24308
Connectors
Discrete Filters
Filter Plates
Filter Terminal Blocks

AmphenolAmphenol Canada Corp.
an ISO 9001 company

About The Company
Amphenol Canada, a subsidiary of Amphenol
Corporation, is an international leader in the manufacture of filter connectors and has been pioneering EMI and
EMP technologies for more than 40 years.

solderless technology in tubular, planar, and chipcapacitor designs.
Amphenol Canada is vertically integrated and, with the
exception of diodes, has the capability of manufacturing all
elements of our filter connectors. We also have thesupport of other Amphenol divisions in an integrated
working relationship as one of the largest connector
manufacturing companies in the world.

Located in Toronto, Canada, our modern 60,000 sq. ft.
facility employs approximately 250 people, and isdedicated to the manufacture of filter connectors. We
design, develop and manufacture EMI and EMP filter
connectors which are used world-wide in Military,
Aerospace, Communication and Commercial applications.
Our products are unique, offering stress-isolated,

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Our expertise in understanding and supporting ourcustomers’ filter interconnect needs has earned us a
reputation of quality and excellence among the world’s
leading users of electronic components.

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Amphenol custom products.
Helping to make design
dreams reality.

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Table of Contents
Introduction to Filter Connectors
Advantages of Filter Connectors ................................................................................................................................ 2
Filter Connector Design ............................................................................................................................................. 2
Filter Connector Selection ........................................................................................................................................... 3
Filtered ARINC 600 and 404 connectors (485 series)
Introduction and Design Features ............................................................................................................................... 4
Cross-section and Material Specification ................................................................................................................. 5
Electrical Characteristics ............................................................................................................................................ 6
ARINC 600 Dimensions ..................................................................................................................................... 7 and 8
ARINC 600 Insert Arrangements .............................................................................................................................. 9
ARINC 404 Dimensions .................................................................................................................................. 10 and 11
ARINC 404 Insert Arrangements .............................................................................................................................. 12
ARINC 404 and 600 Termination Styles .................................................................................................................. 12
Transient Suppression for Lightning and EMP Applications ................................................................................ 13
Diode/MOV Electrical Characteristics ..................................................................................................................... 14
Filter/Diode Connector Transient Response............................................................................................................ 15
Termination Module .................................................................................................................................................... 15
ARINC Accessories .................................................................................................................................................... 16
ARINC Part Numbering System ............................................................................................................................... 16
Filtered D-Sub Connectors (308 Series)
Introduction ................................................................................................................................................................... 17308 Series (Planar design)
Cross-section and Material Specification ................................................................................................................ 18
Electrical Characteristics ........................................................................................................................................... 19
Dimensions .................................................................................................................................................................... 20
Termination Styles ........................................................................................................................................................ 21
Mounting Styles ................................................................................................................................................ 21 and 22
Part Numbering System .............................................................................................................................................. 22
Insert Arrangements .................................................................................................................................................... 23
Panel Cutout .................................................................................................................................................................. 23
FX Series
Filter Terminal Blocks, Discrete Filters and Specials ............................................................................................. 24

1

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C o n n e c t o r sAdvantages of Filter Connectors
The integration of the filter elements into theconnector, rather than a board level solution, resultsin many advantages to the user:• reduction in space and weight• reduction in inspection and assembly labour• improved high frequency EMI performance byelimination of parasitic effects associated withboard level filters• superior shielding effectiveness

Filter Connector Design
Filter connectors have been used for over thirty
years to provide cost and space effective solutions to
EMI problems in a wide range of military andcommercial applications including avionics systems,
satellites, missiles, communications, control systems
and tempest equipment. A low pass filter connector
incorporates capacitors and ferrite inductors into
the connector body. The two capacitor types
commonly used in filter connectors for military oravionics applications are planar arrays and tubular
capacitors. Each of these capacitor types is anefficient filter at high frequencies (>1 GHz) and has
been proven to be extremely reliable when suitably
assembled into a connector. Both planar and tubular
designs feature Amphenol’s unique solderlessconstruction which reduces stress on the ceramicelements and results in superior physical andthermal shock capabilities.

Planar Array
Amphenol Canada’s planar design consists of planar
ceramic capacitor arrays and discrete ferrite
inductors assembled concentrically over thecontacts and into the connector shell. The planars
are compressed between rubber gaskets and havecontact springs in each position which form a stressisolated connection with the contact body. The
planars are grounded to the shell via a groundspring.

Planar Ceramic
Capacitor
Contact Spring
Contact
FerriteGround Spring
Connector
Shell

Tubular Capacitor
Amphenol Canada’s tubular design consists of aferrite bead and ceramic tubular capacitor
assembled onto a machined contact.The filter tube
is connected to the contact with conductive rubber
washers to provide a stress-isolated contact
assembly. Grounding is achieved via a ground plate.

Conductive
RubberWasherTubular Ceramic
Capacitor
FerriteContact

FormedGround Plate

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2Connector
ShellFilter Connector Selection
Selection of a particular filter circuit will depend on
the required insertion loss characteristics and thesystem source and load impedances. By arranging
the capacitive and inductive elements in a variety of
combinations a number of equivalent circuits may
be attained. These filter types are available in a

Filter Circuit

wide range of capacitance and voltage values andmay be selected in virtually any combination within
the connector insert. In addition to filter contacts,
insulated contacts, ground contacts and sealingplugs are available.

Best Filtering ApplicationPI

FERRITE

Unknown or medium source and load impedance

LRC

FERRITE

Low source and high load impedance

CLR

FERRITEHigh source and low load impedance

C
THigh source and high load impedance
FERRITEHigh source or load impedance >100ohms

FERRITE

Low source and low load impedance
Low source or load impedance <10ohms

The following factors may affect the filter performance, and should be considered whenselecting a filter connector:
Operating Voltage
As a DC voltage is applied across a capacitor, thedielectric constant decreases resulting in acapacitance decrease and a reduction in filter
performance. The magnitude of the change isdependant upon the type of ceramic material used,the dielectric thickness and the magnitude of thevoltage applied.

Operating Temperature Range
Capacitance and insertion loss performance areoshown at 25 C. Depending on the type of ceramicmaterial being used, capacitance can drop by up to
80% at temperature extremes. However, commonlyused dielectrics have temperature coefficients ofoo+/- 15% from -55 C to +125 C.

Operating Currents
Operating currents cause magnetic saturation of
inductive elements (ferrites). Therefore filters withferrite inductors (Pi, CLR, LRC and T) will perform
much like C filters as the ferrite approaches
saturation.

Transient Voltage Requirements
Some transient voltage requirements may necessitate
the addition of diodes or MOV’s to the PCB or in theconnector.

3

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C o n n e c t o r s485 Series Introduction and Design Featuresconnector designs incorporate planar capacitor
array technology in a solderless, stress-isolated
configuration. This results in superior thermal andphysical shock performance and unparalleled longterm reliability. These products have been
extensively qualified to the requirements of ARINC
600-9 and MIL-C-81659 and there are numerous
qualification test reports available for review.

The Amphenol 485 series is a range of filtered
ARINC 404 and 600 rack and panel connectors
designed to provide space and cost-effective
solutions to EMC compliance issues in avionics
products. Amphenol’s filtered ARINC connectors
are used extensively on Boeing, McDonnell Douglas
and Airbus avionics equipment and a wide range ofother military and commercial applications. The
majority of the Amphenol filtered ARINC

Front Removable Socket Contact Stability
One significant feature of the Amphenol filtered
ARINC connector is the ability to remove thefront socket contact. This is an important design
feature as the size 22D socket contacts in
ARINC 404 and 600 connectors are exposed
and therefore susceptible to damage. This is oneof the most common in-service problems ofstandard ARINC connectors. A front removable
socket contact avoids the potential cost andinconvenience of removing the connector fromthe avionics box and results in long term
improvements in maintainability and reduction
in life cycle costs. It is important that the front

removable socket be designed such that the contact
is mechanically stable and properly positioned tomeet the connector interface and mating
specifications. The Amphenol design provides forexcellent true position location and contact stability
by virtue of the solderless design. The Amphenol
contact is stabilized at the front by a plastic
stabilization insert, through the length of theconnector and at the rear engagement area. Thisapproach provides for the best possible contact
location and stability and is further augmented by
the use of an environmental seal at the connector
mating interface.

Retention Insert

Silicone rubber
environmental faceseal
(Enhances contactalignment)A m p h e n o l

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Plastic
stabilization insert

4

Solderlessfilter section

Rear epoxy
seal
Rear engagementarea

ARINC Filter Connector Construction and Material Specifications
Machined aluminum alloy shell per QQ-A225, plated in accordance with
1. Electroless nickel per MIL-C-26074
2. Cadmium per QQ-P-416 withyellow or clear chromate finish

Beryllium copper EMI
grounding spring

Fixed rear
termination contact

Ferrite inductor

Beryllium copper
contact spring, gold
plated per
MIL-G-45204

Sealing and stressisolating elastomericgaskets

Stainless steel
socket contact
hood
Front removable
machined copper
alloy contact, gold
plated per
MIL-G-45204
Beryllium copper
contact retention clip

Monolithic planar
capacitor array

Silicone rubberinterfacial seal
High temperature dielectric insert,
glass-filled polyethersulfone
thermoplastic per MIL-P-46185

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C o n n e c t o r sElectrical Characteristics
Filter Circuit
Filter TypeCapacitance (pF)(@ 25˚C, 1kHz & 1.0 VRMS)

PA4PI
P02 P04

P08

CA2

C,CLR,LRC,T
C01 C02 C04

400 to800

1800 to3600

8000 to16000

200 to400

900 to1800

1800 to3600

4000 to
8000

C22

C50

4000 to 22000 to 50000 to
8000
40000
100000Insertion Loss* (dB min.).1 MHz

–

–

–

–

–

–

–

–

–

3

(per MIL-STD-220

1 MHz

–

–

2

5

–

–

–

–

10

15

at 25˚C & no load)

10 MHz

2

10

15

18

–

4

8

13

26

35

100 MHz

20

38

50

55

10

20

25

33

45

50

1000 MHz

58

60

60

63

25

35

40

50

50

52

Working Voltage (VDC)(@ 25˚C & sea level)

200

100

Dielectric Withstanding Voltage (VDC)(@ 25˚C & 50 mA max. charging current)

500

300

Insulation Resistance (Gohms)(@ 25˚C & working voltage)

10

Current Rating by Contact Size(continuous max., DC amperes)#22 = 5 Amps
#20 = 7.5 Amps

#16 = 13 Amps
#12 = 23 Amps

Filter RF Current Rating (amperes)(max. @ any frequency)

3Note: Other capacitance values, mixed capacitance arrangements, ground and insulated contacts are available.
Consult the factory for your particular application.
* Acceptance testing performed to 500MHz maximum

Typical Insertion Loss Performance

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6ARINC 600 Style Filter Connectors
Receptacle Shell Size 1

Receptacle Shell Size 2* This dimension is for all filter styles with PCB, wire wrap or solder cup
terminations. For environmental class connectors with rear releasecontacts, add .600” (15,24mm). Shorter length designs are available. Consult
the factory for details.

7

Note: Size 22D contacts are supplied installed and are removable with Amphenol
insertion/removal tool 485-905. Cavity C and F power contacts are packaged
separately. Coax and triax contacts may be ordered separately.
† Cavity C dimension is shown unfilteredA m p h e n o l

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C o n n e c t o r sARINC 600 Style Filter Connectors
Receptacle Shell Size 3

MIL-C-83527 Style Filter Connectors
Receptacle Shell Size 3* This dimension is for all filter styles with PCB, wire wrap or solder cup
terminations. For environmental class connectors with rear releasecontacts, add .600” (15,24mm). Shorter length designs are available. Consult
the factory for details.

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Note: Size 22D contacts are supplied installed and are removable with Amphenol
insertion/removal tool 485-905. Cavity C and F power contacts are packaged
separately. Coax and triax contacts may be ordered separately.
† ARINC 600 Cavity C and F and MIL-C-83527 Cavity B and D dimensions
are shown unfiltered.

8

ARINC 600 Insert Arrangements
Shell Size 2 or 3, Cavity A, B, D or E

Insert 121
110 #22 Contacts
5 #16 Contacts
6 #20 Contacts

Insert 150
150 #22 Contacts

Insert 71C1
70 #22 Contacts
1 #1 Coax Contact

Insert 71C1A
70 #22 Contacts
1 #1 Coax Contact

Insert 120T2
118 #22 Contacts
2 #8 Triax/Coax Contacts

Insert C2
2 #1 Coax Contacts

Insert C4
4 #1 Coax Contacts

Insert 10T10
10 #8 Triax/Coax Contacts

Shell Size 2 or 3,

Cavity C or F

Shell Size 1
Cavity A or B

Insert 6T6
6 #8 Twinax/Coax Contacts

Insert 13C2
4 #12 Contacts
3 #16 Contacts
4 #20 Contacts
2 #5 Coax Contacts
Insert 60
60 #22 Contacts

Insert 100
100 #22 Contacts

Insert 85
80 #22 Contacts
4 #20 Contacts
1 #16 Contact

Cavity C

Insert 5C2
1 #12 Contact
2 #16 Contacts
2 #5 Coax Contacts

Note: Consult the factory for other insert patterns.

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C o n n e c t o r sARINC 404 and MIL-C-81659 Filtered Connectors
Receptacle Shell Size 1

Receptacle Shell Size 2* This dimension is for all filter styles with PCB, wire wrap or solder cup
terminations. For environmental class connectors with rear releasecontacts, add .600” (15,24mm). Shorter length designs are available. Consult
the factory for details.

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Note: Size 22D contacts are supplied installed and are removable with Amphenol
insertion/removal tool 485-905. Pin contacts are not removable. Coax and triax
contacts may be ordered separately.

10

ARINC 404 and MIL-C-81659 Filtered Connectors
Receptacle Shell Size 3

Receptacle Shell Size 4* This dimension is for all filter styles with PCB, wire wrap or solder cup
terminations. For environmental class connectors with rear releasecontacts, add .600” (15,24mm). Shorter length designs are available. Consult
the factory for details.

11

Note: Size 22D contacts are supplied installed and are removable with Amphenol
insertion/removal tool 485-905. Pin contacts are not removable. Coax and triax
contacts may be ordered separately.

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C o n n e c t o r sARINC 404 and MIL-C-81659 Insert Arrangements

Insert 32C2
30 #20 Contacts
2 #5 Coax Contacts

Insert 26
26 #16 Contacts

Insert 32C4
24 #20 Contacts
4 #16 Contacts
4 #5 Coax Contacts

Insert 40C1
39 #20 Contacts
1 #5 Coax Contact

Insert 33C4
25 #20 Contacts
4 #16 Contacts
4 #5 Coax Contacts

Insert 36C7
29 #22 Contacts
7 #5 Coax Contacts

Insert 45
45 #20 Contacts

Insert 40
40 #20 Contacts

Insert 57
57 #20 Contacts

Insert 67
64 #20 Contacts
3 #16 Contacts

Insert 106
106 #22 Contacts

Insert C8
8 #9 Coax Contacts

Note: Consult the factory for other insert patterns.

ARINC 404 and 600 Termination Styles.148 [3,76] Mounting Hole or
6-32 UNC Self-locking clinch nut (Arinc 600)

Rear Crimp Removable.120 [3,05] Mounting Hole or(Arinc 404)
4-40 UNC Self-locking clinch nut

Solder Cup

Printed Circuit Tail

Wire Wrap Tail** Various lengths are available.
Consult the factory for details.

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12Transient Suppression for Lightning and EMP Applications
Designing for Lightning Induced Transient Susceptibility
In addition to designing for control of steady stateelectromagnetic interference (EMI/EMC), modern
avionics engineers must also design for the recent
advent of much stricter requirements for immunity
to lightning induced transient susceptibility. These
requirements vary by equipment type andenvironmental area and are defined by a variety of
military and commercial specifications including
RTCA/DO-160 C Section 22. The nature of thetransient events ranges from very low level
disturbances requiring little or no protection, tohigh frequency and high energy events that can be
disruptive or destructive to the avionics equipment.

In general, practices which are good for control of
EMI/EMC will also serve to mitigate the effects oflightning induced transients but further measures
must often be taken to ensure proper system
operation and survivability. One of the more
effective methods available is the inclusion of circuit
protective devices in the circuit at the input of the
LRU.The most common types of devices employed
are Zener suppression diodes and metal oxide
varistors (MOV’s). These non-linear V-I devices
conduct very little current at low voltage levels, but
once above the breakdown voltage, the voltage
across the device remains fairly constant.

Filter Connectors with Transient Supressors
While conventional EMI filter connectors have beenshown to be effective in providing protection
against low energy transients, they offer little
protection from high voltage/high energy transientsthat may result from lightning, load switching,electrostatic discharge (ESD) or electromagnetic
pulse (EMP). For those applications requiring
protection of sensitive circuitry from such overvoltage events, Zener suppression diodes or MOV’s
can be incorporated into the connector body in
combination with EMI filtering or alone. Combining
the transient suppression device into the connector

provides several advantages:• saves space and weight versus placing discrete
components onto a PCB• reduces system design time
• reduces number of components• improves voltage clamping performance byeliminating parasitic lead resistance andinductance of board level components• allows for retrofit of existing equipment requiring
lightning or EMP hardening• improves system repairability and maintenancelogistics

Amphenol Diode Protected Connectors
The approach employed by Amphenol to incorporate
diode protection into the connector body is to installa custom diode/contact assembly into an insert witha ground plate. This design provides for a 600 W
device to be installed on each contact in theconnector while minimizing the package size and13weight. In the ARINC connector products this design
still allows for easy removal and replacement of thefront socket contacts. In addition, each diode isindividually replaceable at the factory in the eventthat repair is necessary.

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C o n n e c t o r sDiode Contact Characteristics

Min. Nom. Max.

Test
Current
IT

Rated
Stand-off
Voltage
VWM

Maximum
ReverseLeakage
Current
ID @VWM

Maximum*
Peak Reverse
Clamping
Voltage
VC Max.
@IPP

Maximum
Peak
Pulse
Current
IPP

Power
Capability@1 msec Pulse

VDC

VDC

VDC

mADC

V

µADC

V

A

W

6.4

6.8

7.2

10

5.8

1000

10.5

57.0

600

485-D0100

9.5

10.0

10.5

1

8.5

10

14.5

41.0

600

485-D0150

14.3

15.0

15.8

1

12.8

5

21.2

28.0

600

485-D0220

20.9

22.0

23.1

1

18.8

5

30.6

20.0

600

485-D0330

31.4

33.0

34.7

1

28.2

5

45.7

13.2

600

485-D0470

44.7

47.0

49.4

1

40.2

5

64.8

9.3

600

485-D0680

64.6

68.0

71.4

1

58.1

5

92.0

6.5

600

485-D1000

95.0

100.0

105.0

1

85.5

5

137.0

4.4

600

485-D1500

143.0

150.0

158.0

1

128.0

5

207.0

2.9

600

485-D2000

190.0

200.0

210.0

1

171.0

5

274.0

2.2

600

Diode
Contact
Designation

Breakdown Voltage
V(BR)

+

485-D0068

Note: Other diode contacts having different voltage and power capabilities are available. Consult the factory for additional information.
* 10 x 1000 µsec pulse+ Available in undirectional and bidirectional devices

MOV Contact Characteristics
Characteristics (25˚C)

Maximum Ratings (125˚C)
MOVContact
Designation

Continuous

Transient
Peak
Current
Energy(10/1000µs) (8/20µs)

Maximum
Leakage
Current
at 90%VT (DC)

Varistor Voltage@1m ADC
Test Current

Maximum
Maximum
Leakage
Capacitance
Clamping
Current at 90%(pF)
Voltage VC@Test
VT (DC)
Current (8/20µs) f=1 MHz

RMS
Voltage

DC
Voltage

VM(AC)Volts

VM(DC)
Volts

WTM
JoulesITM
Amperes

IL Max
µA

Min.
Volts

VN(DC)
Volts

Max.
Volts

VC
Volts

IP
Amps

Min.

485-M-0160

6.0

8.0

1.5

250

50

12.5

16.0

19.5

34.0

10

485-M-0220

10.0

14.0

1.5

250

50

18.5

22.0

25.5

42.0

485-M-0390

25.0

31.0

1.5

250

50

35.0

39.0

43.0

85.0

IL MaxµA

VT (DC)
Volts

1600 2750

5.0

8

10

1600 2750

5.0

14

5

450

1350

5.0

28

Max.

485-M-0470

30.0

38.0

1.5

250

50

42.0

47.0

52.0

100.0

5

450

1250

5.0

36

485-M-2000

130.0

130.0

2.4

300

100

184.0

200.0 228.0

375.0

5

150

350

5.0

130

485-M-2400

150.0

150.0

2.4

300

100

212.0

240.0 268.0

430.0

5

100

350

5.0

150

Note: Values are for size 22 contacts. Other MOV contacts are available. Consult the factory for additional information.

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14Filter/Diode Connector Transient Response
Incident Transient Pulse

Incident Transient Pulse

Incident Transient Pulse

Transient Pulse not adequately
suppressed by the EMI filter contact

Transient Pulse not clamped quickly
enough due to lead inductance effect

System safe voltage

TIME

EMI Filter

Transient Pulse clamped by EMP contact

System safe voltage

System safe voltage

TIME

TIME

PCB mounted Diode or MOV

Contact/Connector Diode or MOV

Termination Module
A termination module is a removable extensionof the connector which is recommended for use
with ARINC connectors which have transient
suppression devices.The engagement side of thetermination module is designed to mate to therear of the connector and the termination end isdesigned to attach to the PCB or wire harness(PC tails, solder-cups, wire-wrap or crimp).
Proper engagement of the connector andtermination module is guaranteed by guide postsin the connector and front or rear activated jackscrews. Sealing is accomplished with a rubberinterfacial gasket.
Connectors designed to engage to a termination
module are designed with one-piece front
removable socket contacts to minimize thenumber of interconnects.
The use of a termination module provides
several advantages:• simplifies the assembly process by soldering to
the lighter weight termination module rather
than to the connector itself• facilitates repair and rework procedures due
to easy installation and removal from themotherboard

15

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C o n n e c t o r sARINC Accessories
ARINC replacement contacts can be orderedseparately if required. Additional accessories such as
EMI backshells and fibre optic contacts are alsoavailable. Contact the factory for details.
ARINC 600
Contact Size
#22 socket#22 crimp termination

Contact P/N
485-1034*
485-6222

Insertion/Removal tool
485-905
M81969/1-01#20 pin+#16 pin+#12 pin+

485-120
485-116
485-112

M81969/1-02 or M81969/14-10
M81969/1-03 or M81969/14-03
M81969/14-04

Contact P/N
485-1236*
485-4222

Insertion/Removal tool
485-905
M81969/1-01

Crimp tool
N/A
M22520/2-01 or
M22520/7-01
M22520/2-01
M22520/1-01
M22520/1-01

Positioner
N/A
M22520/2-06 or
M22520/7-06
M22520/2-08
M22520/1-02
M22520/1-11

Crimp tool
N/A
M22520/2-01 or
M22520/7-01

Positioner
N/A
M22520/2-06 or
M22520/7-06

ARINC 404
Contact Size
#22 socket#22 crimp termination* Some connectors have custom socket contacts. Consult the factory for details.
+ Cavity C or F contacts

485 Series Part Numbering Information
485- 6 2 R B

2 00 - 000

SeriesDeviation(assigns insert arrangements.
filtering and custom requirements)

ARINC Series
4 = ARINC 404 or MIL-C-81659
6 = ARINC 600
8 = MIL-C-83527 or EN3682

Key Position
00 = N/A
01 to 99 per ARINC 600 and 404
Shell Size
1,2,3 or 4

ARINC Class
1 = Unsealed
2 = Sealed

Termination Styles
B = P.C. Tails
S = Solder Cup
T = Crimp Removable (UTS)
W = Wire WrapStyle
A = Adapter
P = Plug
R = Receptacle

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16MIL-C-24308 Style (D-Sub) Filter Connectors
Amphenol offers a variety of filtered D–Sub
connectors to address aerospace and commercial
EMI requirements. There are two products inparticular which are designed for aerospace
applications where high reliability and superior
environmental and electrical performance are
required. The 481 series of filtered D–Sub
connectors has been in production for over 20
years using tubular capacitor filter technology. In
the late 1980’s, Amphenol developed a planar filter

capacitor version of the same connector, the 308
series. As a result, Amphenol has the widest
product offering in the industry and can provide
either technology as the application and production
requirements dictate.

308 Series – Planar Capacitor Technology• superior pin–pin cross talk isolation• cost effective for small quantities• can accommodate a wider range of capacitancevalues than planar designs• fully tooled in medium density pin and selected
socket and high density arrangements• short production leadtimes• solderless stress–isolated construction (see page
23 for details)

Quality Conformance Inspection
The 308 series connectors have been extensively
qualified per the requirements of MIL–C–24308.
All products shipped receive the following
inspection tests:• 100% visual and mechanical inspection• 100% capacitance, dielectric withstanding voltage,
insulation resistance and dissipation factor testing• sample insertion loss testing (AQL 1.0%)

For high reliability applications, the following
inspection tests or certifications are also available:• thermal shock• elevated temperature voltage conditioning• elevated temperature insulation resistanceand capacitance• outgassing per JSC–SPR–0022 for spaceborne applications• baseline and single lot date code manufacturing• other tests as required (consult the factory)

308 Special

Filtered D-Sub programmable

EMI Grounded Special

Zinc Nickel Plating
Environmentally friendly, conductive and able
to withstand up to 2000 hours of salt spray
per ASTM-B117

Please consult factory for any custom arrangements
17

A m p h e n o l

F i l t e r e d

C o n n e c t o r sPlanar D-Sub Filter Connector Construction and Material Specifications

Copper alloy
soldercup
termination, gold
plated per
MIL-G-45204
Copper alloy
crimp barrel
termination, gold
plated per
MIL-G-45204

Ferriteinductor

Single piece machined aluminum alloy shell per
QQ-A-225, plated in accordance with
1) Electroless nickel per MIL-C-26074 or2) Tin per MIL-T-10727 or
3) Cadmium per QQ-P-416 with clear chromate or4) Gold per MIL-G-45204 over electroless nickel
per MIL-C-26074

Monolithic
planarcapacitor
array

Beryllium copper
contact springs, gold
plated per
MIL-G-45204
High temperature
dielectric insert polyethersulfone
thermoplastic per
MIL-P-46185
Machined copper
alloy contact, gold
plated per
MIL-G-45204

Beryllium copper
EMI grounding
spring

Sealing and stressisolating elastomericgaskets (3 places)

A m p h e n o l

F i l t e r e d

C o n n e c t o r s

18308 Series Electrical Characteristics
Filter Circuit
Filter TypePA4

Capacitance (pF)(@ 25˚C, 1kHz & 1.0 VRMS)

400 to
800

P02

PI
P04

P08

P16

CA2

C,CLR,LRC,T
C01 C02 C04

1800 to3600

4000 to8000

8000 to 16000 to
16000
32000

200 to400

900 to1800

C22† C50†

1800 to 4000 to 22000 to 50000 to
3600
8000
40000
100000Insertion Loss (dB min.).1 MHz

–

–

–

–

–

–

–

–

–

–

3

(per MIL-STD-220

1 MHz

–

–

2

5

8

–

–

–

–

10

15

at 25˚C & no load)

10 MHz

2

10

15

18

28

–

4

8

13

26

35

100 MHz

20

38

50

55

62

10

20

25

33

45

50

1000 MHz

58

60

60

63

68

25

35

40

50

50

52

Working Voltage (VDC)(@ 25˚C & sea level)

200

100

Dielectric Withstanding Voltage (VDC)(@ 25˚C & 50 mA max. charging current)

500

300

Insulation Resistance (Gohms)(@ 25˚C & working voltage)

10

Contact Current Rating(continuous max., DC amperes)

5Filter RF Current Rating (amperes)(max. @ any frequency)

3Note: Other capacitance values, mixed capacitance arrangements, ground and insulated contacts are available.
Consult the factory for your particular application.
† Not available in high density arrangements

Typical Insertion Loss Performance
PI Filter
P16

P08 P04

70

P02
PA4

C50
C22

60

60

50

50
Insertion Loss (dB)

Insertion Loss (dB)70

C, CLR, LRC and T Filters

40

30

C01
30
CA2
20

10

10

10

100

1000

C02

40

20

10

C04

0.1

1.0

Frequency (MHz)

10

100

1000

Frequency (MHz)19

A m p h e n o l

F i l t e r e d

C o n n e c t o r s

308 Series Plug Dimensions

Front View

Rear View

Side View

Dimension
Number ofA

Shell Size Contacts

B Max

C

D Max

E Max

F

G

±.005” ±,13mm inchesmm± .015” ±,38mm inches

mm

inchesmm± .005” ±,13mm ± .005” ±,13mm

E

9 or 15

0.984

24,99

0.685

17,34

1.213

30,81

0.534

13,56

0.434

11,02

0.329

8,36

0.666

16,92

A

15 or 26

1.312

33,32

1.009

25,63

1.541

39,14

0.534

13,56

0.434

11,02

0.329

8,36

0.994

25,25

B

25 or 44

1.852

47,04

1.557

39,55

2.088

53,04

0.534

13,56

0.434

11,02

0.329

8,36

1.534

38,96

C

37 or 62

2.500

63,50

2.205

56,01

2.729

69,32

0.534

13,56

0.434

11,02

0.329

8,36

2.182

55,42

D

50 or 78

2.406

61,11

2.110

53,59

2.635

66,93

0.641

16,28

0.541

13,74

0.441

11,20

2.079

52,81

6

104

2.500

63,50

2.255

57,28

2.729

69,32

0.680

17,27

0.640

16,26

0.503

12,77

2.212

56,18

* For Dimension P, see page 21

308 Series Receptacle Dimensions

Front View

Side View

Rear View

Dimension
Number of
Shell Size Contacts

A

B Max

C

D Max

E Max

F

G

±.005” ±,13mm inchesmm± .015” ±,38 mm inches

mm

inchesmm± .005” ±,13mm ± .005” ±,13mm

E

9 or 15

0.984

24,99

0.685

17,34

1.213

30,81

0.534

13,56

0.434

11,02

0.311

7,90

0.643

16,33

A

15 or 26

1.312

33,32

1.009

25,63

1.541

39,14

0.534

13,56

0.434

11,02

0.311

7,90

0.971

24,66

B

25 or 44

1.852

47,04

1.557

39,55

2.088

53,04

0.534

13,56

0.434

11,02

0.311

7,90

1.511

38,38

C

37 or 62

2.500

63,50

2.205

56,01

2.729

69,32

0.534

13,56

0.434

11,02

0.311

7,90

2.159

54,84

D

50 or 78
104

2.406
2.500

61,11
63,50

2.110
2.255

53,59
57,28

2.635
2.729

66,93
69,32

0.641
0.680

16,28
17,27

0.541
0.640

13,74
16,26

0.423
0.485

10,74
12,32

2.064
2.189

52,43
55,60

6

* For Dimension P, see page 21

A m p h e n o l

F i l t e r e d

C o n n e c t o r s

20308 Series Termination Styles

Termination Style 1

Termination Style 2

Termination Style 3

Termination Style 4

Termination Style 6

Termination Style 7

Termination Style 8

Termination Style 9† This dimension is 0.078” (1,98) for high density arrangements

Termination Style and Shell Length (P Max dimension)
FilterCircuit1 and 2

3

4

6

7

8

9

inchesmm

inchesmm

inchesmm

inchesmm

inchesmm

inchesmm

inchesmm

PI,LRC,CLR,T

0.575

14,61 0.695

17,65

0.575

14,61

0.575

14,61

N/A

N/A

0.470

11,94 0.695

17,65

C

0.450

11,43 0.570

14,48

0.450

11,43

0.450

11,43

0.400

10,16

0.370

9,40

14,48

0.570

308 Series Mounting Styles

Mounting Style 2

Mounting Style 1

21

A m p h e n o l

F i l t e r e d

C o n n e c t o r sMounting Style 3 (two row)

Mounting Style 3 (three row)
Dimension

Number of

A

B Max

C

D

E

F Max

Shell Size

Contacts±.004” ±,11mm inches

mm±.015”±,39mm ± .008” ±,21mm ±.020” ±,51mm inchesmmE

9 or 15
15 or 26
25 or 44
37 or 62
50 or 78

0.331
0.331
0.331
0.331
0.387

6,35
6,35
6,35
6,35
6,35

0.647
0.647
0.647
0.647
0.703

16,43
16,43
16,43
16,43
17,86

21,72
21,72
21,72
21,72
23,12

A
B
C
D

8,41
8,41
8,41
8,41
9,83

0.250
0.250
0.250
0.250
0.250

0.270
0.270
0.270
0.270
0.324

6,86
6,86
6,86
6,86
8,23

0.149
0.149
0.149
0.149
0.149

3,79
3,79
3,79
3,79
3,79

0.855
0.855
0.855
0.855
0.910

308 Series Part Numbering Information
308- B P 1

P 08 1 1 - 000H

SeriesPlanar D-Sub
Deviation
000 = Standard
Shell Size
E(1), A(2), B(3), C(4), D(5), 6

Shell Plating
1 = Electroless Nickel
2 = Tin
3 = Cadmium (clear)
4 = Gold
5 = Zinc Nickel

Contact
P = Pin
S = Socket

Mounting Style
1 - .120“ (3,04mm) mounting hole2 - 4-40 threaded clinch nut
3 - Right Angle mounting bracket
4 - Right Angle mounting bracket
with 4-40 threaded clinch nut

Termination Style
1 - .025“ (,64mm) diameter PCB
2 - .020“ (,51mm) diameter PCB
3 - Solder cup
4 - .900“ (22,86mm) footprint right angle
6 - .590“ (14,99mm) footprint right angle
7 - .328“ (8,33mm) footprint right angle
8 - .025“ (,64mm) diameter PCB with short connector body
9 - Crimp, non-removable
Filter Circuit
P = PiC = Capacitive
L = LRCA m p h e n o lCapacitance (pF)Pi
A4 = 400 to 800
02 = 1800 to 3600
04 = 4000 to 8000
08 = 8000 to 16000
16 = 16000 to 32000

R = CLR
T = T Style

F i l t e r e dDensity
H High Density
Blank if medium

C o n n e c t o r s

22

C, CLR, LRC, T
A2 = 200 to 400
A4 = 400 to 620
01 = 900 to 1800
02 = 1800 tp 3600
04 = 4000 to 8000
10 = 10000 to 15000
16 = 16000 to 32000
22 = 22000 to 40000
50 = 50000 to 100000

308 Series Insert Arrangements
Pin Engaging Face Shown
Shell Size 1 (E)Shell Size 2 (A)Shell Size 3 (B)9 #20 Contacts

15 #20 Contacts

25 #20 Contacts

15 #22 Contacts

26 #22 Contacts

44 #22 Contacts

Shell Size 5 (D)Shell Size 4 (C)37 #20 Contacts

50 #20 Contacts

62 #22 Contacts

78 #22 Contacts
Shell Size 6

Note: Consult the factory for other insert patterns.

104 #22 Contacts

Recommended Panel Cutout
Front and Rear Mounting
Dimension
B

A min
Shell Size inches

1 (E)
2 (A)
3 (B)
4 (C)
5 (D)*
5 (D)+
6*

0.801
1.129
1.669
2.321
2.213
2.250
2.360

C min

mm

±.005”±,13mminches

mm

20,35
28,68
42,39
58,95
56,21
57,15
59,94

0.984
1.312
1.852
2.500
2.406
2.406
2.500

24,99
33,32
47,04
63,50
61,11
61,11
63,50

0.449
0.449
0.449
0.449
0.555
0.585
0.630

11,40
11,40
11,40
11,40
14,09
14,86
16,00

* Rear mounting dimensions+ Front mounting dimensions

23

A m p h e n o l

F i l t e r e d

C o n n e c t o r s

FX Series
Filter Terminal Blocks, Discrete Filters and Specials
DESCRIPTION
Amphenol’s FX series of Discrete Feed-thru Filters offer
excellent, low cost filter solutions for telecom, industrial,
military and aerospace electronics applications, especiallywhere small size and high performance are important.
Manufactured to meet the requirements of Mil-F-15733, the FX
filters are available in threaded bushing and solder-mount styles
with capacitance ranges from 10pF to 600nF.
Due to Amphenol’s unique manufacturing process, higher
capacitance values and greater voltage withstand capabilities areachieved with the same industry standard package sizes.
Consult factory for custom filter and/or filter plate requirements.

MATERIALS
Terminals: Copper Alloy, silver plated (filter pins shown aregold plated)
Eyelets/Bushings: Brass, silver plated

ORDERING INFORMATIONFX B - 1 P 152 1 -100
FX
B

Discrete Filter Series
B - Threaded BushingE - Solder-in Eyelet
F - Filter Pin
P - Filter Plate (Consult Factory)1

Mtg StyleP

Circuit Type

1 - .110 Mtg Hole Dia.
2 - .138 Mtg Hole Dia.
3 - .145 Mtg Hole Dia.
4 - .210 Mtg Hole Dia.
0 - Special Size

Deviation code

Bushing Only
5 - 6-32 Thread
6 - 8-32 Thread
7 - 12-32 Thread
8 - 5/16-32 Thread

Termination

P - PiC - Capacitive
L-L

Coax Filter Plate AssemblyFiltered Terminal BlockA m p h e n o l

C o n n e c t o r s

F i l t e r e d

100 - Standard Cataloge Package
Sizes (see page 4)

1 - Straight Lead
4 - P.C. Tail
1
2 - Nail Head (Turret) 5 - Flattened & Pierced
3 - Solder Cup
6 - Hooked Term

Capacitance Code(PF)

Filter Plate Assembly

24

100

101 - 100pF
202 - 2000pF
203 - 20,000pF(Last digit of 3 number code is thenumber of zeros after first 2 digits)

152

Special Filter Plate Shell AssemblyFor EMI/EMP Protection,
Look to the Leader -Amphenol Aerospace

Amphenol Aerospace, the Interconnection Leader, offers advanced EMI/EMP Protection with highreliability. The proven performance of Amphenol® EMI Filter/Transient Protection Connectors
means dependable protection for the costly and sensitive circuitry in sophisticated avionics.
Each circuit of the filter connector is individually filtered and internally housed in the connector, eliminating the need forcostly and bulky exterior discrete protection devices. Amphenol Filter connectors are intermateable and intermountable with MIL-C-38999, MIL-C-27599, MIL-C-83723, MIL-C-26482, MIL-C-24308, MIL-C-5015.
Amphenol offers a broad range of cost saving filter options with versatility in sizes, styles and arrangements.

EMI Programmable Connectors
An alternative to non-removable filter contacts.
Crimp style EMI contacts are insertable andremovable from the rear of the connector. Allows
the user to run diagnostic EMI evaluations ofsystems before going into production, easily
modifying circuitry and pinouts at the test benchlevel. Available in a wide range of capacitancevalues in both Pi and C type filters, crimp andPC termination styles.

EMI/EMP Adapters
Provide cost effective solutions to problems on
existing applications. Designed to be installed
between the existing cable plug and unit receptacle. Circuit protection at MF, HF, VHF, and UHF
levels is available in contact sizes 22 to 12 with all
the popular Mil-specs.

Header Assemblies
For time and cost savings. Can be vapor phaseor wave soldered to flex or printed circuit boards
prior to the receipt of an EMI/EMP connector.
Expensive connector assemblies can be easily
removed from and reattached to the header
assembly as the manufacturing process dictates. Available to fit all major cylindrical Milspec connectors.

Contact us for your special application requirements: Amphenol Aerospace, 40-60 Delaware Ave., Sidney, NY 13838-1395
Phone: 607-563-5011 Fax: 607-563-5157 Web Site: www.Amphenol-Aerospace.com

Amphenol Canada
20 Melford Drive
Scarborough, ON
Canada M1B 2X6
Phone: 416-291-4401
Fax: 416-292-0647
Amphenol Aerospace
40-60 Delaware Avenue
Sidney, NY 138 38-1395
Phone: (607) 563-5453
Fax: (607) 563-5351

Amphenol-Tuchel Electronics GmbH
August-Haeusser-Strasse 1074080 Heilbronn
Germany
Phone: 49-7131-929-0
Amphetronix Limited
P.O. Box No. 1, Plot No. 105
105 Bhosari Industrial Area
Pune 411026, India
Phone: 91-20-790363

Amphenol Aerospace
22952 Alcade Drive
Suite 110
Laguna Hills, CA 92653
Phone: (949) 855-4454
Fax: (949) 855-9115

Israel
Bar-Tec Ltd.
11 Barliam St., P.O. Box 279
Kfar Saba 44102
IsraelPhone: (972-9) 974097
Fax: (972-9) 974324

Amphenol Aerospace
57 E. Hattendorf Avenue
Suite 150
Roselle, IL 60172
Phone: (630) 893-1713
Fax: (603) 893-3958

Amphenol Australia Limited
2 Fiveways Blvd., Keysboroug
Victoria 3173, Melbourne, Australia
Phone: 61-3-8796-8888

Amphenol Aerospace
7506 East Independence Blvd.
Charlotte, NC 28227
Phone: (704) 531-9053
Fax: (704) 531-9054
Communication and Network
Products Division
One Kennedy Avenue
Danbury, CT 06810
Phone: (203) 743-9272
Fiber Optic Products
1925A Ohio Street
Lisle, IL 60532
Phone: (630) 960-1010
Sine Systems * Pyle Connectors
Corporation
25325 Joy Boulevard
Mt. Clemens, MI 48046
Phone: (810) 465-3131
Chicago Office
650 W. Grand Avenue, Suite 304
Elmhurst, IL 60126
Phone: (630) 832-4600
Spectra Strip
720 Sherman Avenue
Hamden, CT 06514
Phone: (203) 281-3200
Technical Products International
2110 Notre Dame Avenue
Winnipeg, MB, R3H 0K1 Canada
Phone: (204) 697-2222
Times Fiber Communications, Inc.
358 Hall Avenue
Wallingford, CT 06492
Phone: (203) 265-8500
Amphenol Mexico
Presidente Masaryk 61, Piso 2
C.P. 11570 Mexico D.F.
MexicoPhone: (52-5) 254-7283
Fax: (52-5) 531-9659
Advanced Circuit Technology
118 Northeastern Boulevard
Nashua, NH 03062
Phone: (603) 880-6000
Amphenol Scandinavia
P.O. Box 2047
Johannelundsvagen 2
194 02 Upplands Vaesby
SwedenPhone: 46-8-594-10440
Amphenol Socapex S.A.S.
Promenade de l’Arve, BP 29
74311 Thyez Cedex
FrancePhone: 33-4-5089-2800
Amphenol-TFC (Changzhou)
Communications Equipment Co., Ltd.
96 Hehai Road, Changzhou New &HighTech & Industrial
Development Zone
Changzhou 213000, Jiangsu, PRC
Phone: 86-519-510-6004
Amphenol Taiwan
59, Lung-Shou Street, Sec. 1
Lu-Chu-Hsiang, Taoyuan Hsien
TaiwanRupublic of China
Phone: 886-3-379-5677

Amphenol European Sales Operations
Hoofdveste 193992 DHThe Netherlands
Phone: 31-30-635-8001
Amphenol Dae Shin Limited#182-1 Dodan-Dong, Wonmi-ku
Bucheon-City, Kyungki-Do
Korea
Phone: 82-32-680-3800
Amphenol do Brasil LTDA
Morumbi Tower
Avenida Roque Petroni Junior 999
13th Floor CEP 04707-910
Sao Paulo, Brazil
Phone: 55-11-5185-2881
Amphenol East Asia Limited
10/F Wah Luen Industrial Centre
15-21 Wong Chuk Yeung Street
Fotan, Hong Kong
Phone: 852-2669-2663
Amphenol EspanaCalle Cuba No. 6, 2-528820 Coslada Madrid
Spain
Phone: 349-1-673-2235
Amphenol Gesellschaft mbH
Johnstrasse 42
2 Stoch, Top 3A
Vienna, Austria
Phone: 43-1-985-1511
Amphenol Interconnect
Products Corporation
20 Valley Street
Endicott, NY 13760
Phone: (607) 754-4444
Amphenol Italia, S.P.A.
Galleria Gandhi, 2-27
20017 - Mazzo di Rho (Milano)
Italy
Phone: (390-2) 939-04192
Fax: (390-2) 935-03206
Telex: 334623 AMPHIT I
Amphenol Japan, K.K.
2-3-27, Kudan Minami
Chiyoda-ku, Tokyo 102
Japan
Phone: 81-3-3263-5611
Amphenol Limited
Thanet Way
Whitstable, Kent
England CT5 3JF
Phone: 44-1227-773-200
Amphenol Ges mbH
Tautenhayngasse 22
A-1150 Wien (Vienna)
Austria
Phone: (43-1) 985-15-11
Fax: (43-1) 982-61-01
Telex: (847) 132661 AMPHWA
Amphenol East Asia, Ltd.
80 Genting Lane
09-04 Genting Block
Ruby Industrial Complex
Singapore 1334
Phone: (65) 7433022
Fax: (65) 7432466
Telex: RS 23499 AMPHNL

Notice: Specifications are subject to change without notice. Contact your nearest Amphenol sales office for the latest specifications. All statements, information and data
given herein are believed to be accurate and reliable but are presented without guaranty, warranty, or responsibility of any kind, express or implied. Statements or suggestions
concerning possible use of our products are made without representation or warranty that any such use is free of patent infringement, and are not recommended to infringe
any patent. The user should not assume that all safety measures are indicated or that other measures may not be required. Amphenol is a registered trademark.