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Document 215 -1IEEE 1394 Common Mode Choke
AEC• Designed for IEEE 1394 and other high-speed twisted pairinterfaces.
• Shielded 1812 size filter• Provides over 21 dB attenuation of common mode noise at
400 MHz with a cutoff frequency of 1.2 GHz

Q200 +85°C

Core material Ferrite
Terminations RoHS compliant gold over nickel over moly-manganese
Weight: 30 mg
Ambient temperature –40°C to +85°C with Irms current.
Maximum part temperature +100°C (ambient + temp rise).
Storage temperature Component: –40°C to +100°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /85% relative humidity)
Packaging 600/7″ reel; 2200/13″ reel Plastic tape: 12 mm wide,
0.25 mm thick, 8 mm pocket spacing, 3.9 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additionalaqueous wash. See Doc787_PCB_Washing.pdf.		
Partnumber1Common modepeak impedance(kOhms)Cutofffrequency2(GHz)

CM1394L_0.813 @ 660 MHz

1.2

Common mode		DCRattenuation typ (dB)
Inductance3max4
100 MHz 400 MHz 500 MHz
min (µH)(Ohms)

11.1

21.1

22.7

1. When ordering, please specify packaging code:
CM1394LC
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape (600 parts per full reel). Quantities less than full
reel available: in tape (not machine ready) or withleader and trailer ($25 charge).
D = 13″ machine-ready reel. EIA-481 embossed plastic
tape (2200 parts per full reel).
B = Less than full reel. In an effort to simplify our partnumbering system, Coilcraft is eliminating the needfor multiple packaging codes. When ordering, simply
change the last letter of your part number from B to C.
2 Frequency at which the differential mode attenuation equals −3 dB
3. Inductance measured at 100 MHz
4. DCR is specified per winding.
5. Winding to winding isolation (hipot) tested for one minute.
6. Current per winding that causes a 15°C rise from 25°C ambient.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

0.22

BE4Isolation5 Irms6(Vrms)
(A)

0.105

50

1.5CD

11423A FHG
0.015
0,38

10.0200,51
240.057
1,45

0.020
0,51

3

0.018
0,460.048
1,22

Pad Detail

0.115
2,920.015 ref
0,38

Recommended
Land PatternA max
0.231
5,87

B max
0.196
4,98

C max
0.150
3,81

US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg

D ref
0.107
2,72

E ref
0.100
2,540.040 min
1,02

F ref
0.178
4,52

Document 215-1

0.030 ±0.002
0,76 ±0,05

G min
0.04
1,02

H
0.03
0,76

Revised 07/28/21© Coilcraft Inc. 2021
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.

Document 215 -2IEEE 1394 Common Mode Choke
Typical Attenuation (Ref: 50 Ohms)
0AEC

Q200 +85°C

Impedance (Ohms)

102030Common mode
Differential mode

40

1

10100

1000

10000

Frequency (MHz)

Typical Impedance vs Frequency
1000

Impedance (Ohms)

100

101.0

Common mode
Differential mode

0.1

110100

1000

10000

Frequency (MHz)US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg

Document 215-2

Revised 07/28/21© Coilcraft Inc. 2021
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.