CM1394_15 Datasheet, PDF (1/2 Pages) Coilcraft lnc. – IEEE 1394 Common Mode Choke

Document 215 -1
IEEE 1394 Common Mode Choke
The CM1394 provides a low cost, high performance way
to virtually eliminate common mode noise from IEEE 1394
and other high-speed 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
CM1394L_
  _Inductance2
min (µH)
0.22
  _{DCR max}3
(Ohms)
0.105
  _Irms4
(Amps)
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
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.
D = 13″ machine-ready reel. EIA-481 embossed plastic
tape (2200 parts per full reel).
2. Inductance measured at 100 kHz.
3. DCR is for each winding
4. Current that causes a 15°C rise from 25°C ambient
5. Electrical specifications at 25°C
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Core material Ferrite
Terminations  RoHS compliant gold over nickel over moly-manganese
Weight:  30 mg
Ambient temperature  –40°C to +85°C
Storage temperature  Component: –40°C to +85°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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
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 with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Document 215-1  Revised 01/26/05