Document 306-1
USB 2.0 Common Mode Filter – 0805
These Coilcraft filters are designed to eliminate virtually
all common mode noise in high-speed, differential mode
signal transmission applications such as USB 2.0,
IEEE1394 and LVDS. Most provide greater than 25 dB
common mode attenuation and greater than 100 ohms
impedance.
The low profile design and standard 0805 footprint make
it the ideal solution for designs where board space is at
a premium.
These dual-wound filters feature very low DC resistance
and are available in eight values to meet your specific
requirements.
To request free evaluation samples, contact Coilcraft or
visit
www.coilcraft.com.
Part
number
1
Common mode
impedance typ (Ohms)
10 MHz 100 MHz 500 MHz
Common mode
attenuation typ (dB)
Inductance
2
10 MHz 100 MHz 500 MHz
min (nH)
DCR max
(Ohms)
Irms
3
(mA)
0805USB-421MB_
0805USB-901MB_
0805USB-172MB_
0805USB-262MB_
0805USB-372MB_
0805USB-502MB_
0805USB-672MB_
0805USB-902MB_
1. Specify
packaging
code:
14
28
57
85
118
148
246
294
42
90
170
260
370
500
670
900
70
154
303
435
641
945
1231
1715
1.1
1.4
2.3
3.0
4.5
4.9
8.4
8.7
2.3
4.2
6.7
8.6
11.9
14.5
16.6
18.7
8.4
16.9
22.0
27.8
34.3
31.3
30.0
30.5
27.0
54.0
96.0
177.0
216.0
312.0
345.0
450.0
2
0.12
0.17
0.25
0.26
0.32
0.37
0.45
0.65
500
500
500
500
500
500
500
400
1
0805USB-902MBC
Packaging: C
= 7″ machine-ready reel. EIA-481 embossed plastic
tape (2000 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 (7500 parts per full reel).
2. Inductance measured at 100 MHz using an Agilent/HP 4286A
impedance analyzer and a Coilcraft SMD-A fixture.
3. Average current for a 20°C rise from 25°C ambient.
4. DCR and
Irms
are specified per winding.
5. Operating temperature range
−40°C
to 85°C.
6. Electrical specifications at 25°C.
3
4
Tape and reel:
2000/7″ reel; 7500/13″ reel 8 mm tape width
For packaging data see Tape and Reel Specifications section.
Specifications subject to change without notice. Document 306-1
Revised 01/29/04
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