CM1394 Series IEEE1394 Common Mode Choke - Coilcraft - (Version JPG) - PDF Catalogue | Technical Documentation

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Ferrite chip inductor, EMI filter, Toroidal transformer, Isolation transformer, Filter coil

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Document 215 -1

IEEE 1394 Common Mode Choke

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The CM1394 provides a low cost, high performance way to virtually eliminate common mode noise from IEEE 1394/FireWire and other twisted pair interfaces.

It provides over 17 dB attenuation of common mode noise at 400 MHz while differential mode signals extend out to 800 MHz before reaching the 3 dB point.

This shielded, 1812 size filter is machine wound, making it less expensive than hand-wound toroid designs. It also assures tighter tolerances between windings for excellent impedance balance. Coilcraft's CM1394 meets the IEEE 1.5 Amp Irms specification and has a maximum DCR of 0.105 Ohms.

To request free evaluation samples, contact Coilcraft or visit www.coilcraft.com.

Part number¹

Inductance²min (uH)

DCR max (Ohms)

Irms³(Amps)

CM1394L_

0.22

0.105

1.5

Insertion loss (dB) common mode/differential mode 100 MHz 200 MHz 400 MHz 500 MHz

9.04/0.19

13.66/0.94 17.75/1.79 17.11 /2.09

1. When ordering, please specify packaging code:

CM1394LC

, 0.057 H 1,45

0.015 0,38

Packaging: C

7" machine-ready reel. EIA-481 embossed plastic

tape (600 parts per full reel).

B :

Less than full reel. In tape, but not machine ready.

To have a leader and trailer added ($25 charge), use code letter C instead.

Pad Detail

0.020 0,51

0.020 0,51 '

0.115

2,92

13" machine-ready reel. EIA-481 embossed plastic

tape (2200 parts per full reel).

2. Inductance measured at 100 kHz.

3. Average current for 15°C rise from 25°C ambient

4. Operating temperature range -40°C to +85°C

5. Electrical specifications at 25°C

II 0.018 ^O^ref

*l r Ö°6 ^0,38

0.030 ±0.002 0,76 ±0,05

0.048

Q^min 1,02

1,22

Recommended Land Pattern


A max	B max	C max	D ref	E ref	F ref	G min	H
0.231	0.196	0.150	0.107	0.100	0.178	0.04	0.03
5,87	4,98	3,81	2,72	2,54	4,52	1,02	0,76

Terminations: Gold over nickel over moly-manganese Weight: 30 mg

Tape and reel: 600/7" reel; 2200/13" reel 12 mm tape width For packaging data see Tape and Reel Specifications section.

Specifications subject to change without notice.

Please check our website for latest information. Document 215-1 Revised 01/26/05

102 Silver Lake Road Cary, Illinois 60013 Phone 847/639-6400 Fax 847/639-1469 © Coilcraft, Inc. 2006 E-mail info@coilcraft.com Web http://www.coilcraft.com

CM1394 Series IEEE1394 Common Mode Choke - Coilcraft - #1

Ferrite chip inductor, EMI filter, Toroidal transformer, Isolation transformer, Filter coil