CM1394_15 [COILCRAFT]
IEEE 1394 Common Mode Choke;
| 型号： | CM1394_15 |
| 厂家： | 
Coilcraft lnc. |
| 描述： | IEEE 1394 Common Mode Choke |
| 文件： | 总2页 (文件大小：434K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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.
Core material Ferrite
Terminations RoHS compliant gold over nickel over moly-manganese
Weight: 30 mg
Part
Inductance2
min (µH)
DCR max3
(Ohms)
Irms4
number1
(Amps)
CM1394L_
0.22
0.105
1.5
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°C.
Insertion loss (dB) common mode/differential mode
Tape and reel packaging: –40°C to +80°C
100 MHz
200 MHz
400 MHz
500 MHz
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
9.04/0.19
13.66/0.94
17.75/1.79
17.11/2.09
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
1. When ordering, please specify packaging code:
CM1394LC
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
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
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.
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
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.
Document 215-1 Revised 01/26/05
Document 215-2
IEEE 1394 Common Mode Choke
Frequency Response
Impedance vs Frequency
0
1000
Differential mode
5
100
Common mode
10
10
1
15
20
1
10
100
0.01
0.1
1
10
100
1000
10000
1000
Frequency (MHz)
Frequency (MHz)
C
D
B
E
1
4
1
4
3
A
F
2
H
G
0.057
1,45
0.015
0,38
1
4
Pad Detail
0.020
0,51
0.020
0,51
0.115
2,92
2
3
0.015
0,38
0.018
0,46
ref
0.030 0.002
0,76 0,05
0.048
1,22
0.040
1,02
min
Recommended
Land Pattern
A max B max C max D ref
E ref
F ref G min
0.178 0.04
H
0.03
0,76
0.231
5,87
0.196
4,98
0.150 0.107 0.100
3,81 2,72 2,54
4,52
1,02
Document 215-2 Revised 01/26/05
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