Document 149
DataLineEMIFilters–Leaded
These filters are designed to virtually eliminate the
problem of conducted EMI in data line applications.
They provide exceptional common mode noise at-
tenuation from 5 MHz to 300 MHz while passing sig-
nal line data frequencies below 200 MHz with
minimal attenuation.
These low resistance filters have been designed for
excellent electrical isolation, environmental stability,
and low cost. An optional cover makes them compati-
ble with auto insertion equipment.
Coilcraft data line EMI filters come in 8, 4, 3 and
2-wire versions with DC current capacity of 100 mA
(DLF X000 series) or 500 mA (DLF X500 series).
Coilcraft
Designer’s Kit D103
contains samples of
all 100 mA values shown plus surface mount ver-
sions. To order, please contact Coilcraft.
Specifications
Part
Number*
DLF 8000
DLF 8500
DLF 4000
DLF 4500
DLF 3000
DLF 3500
DLF 2000
DLF 2500
Lines
8
8
4
4
3
3
2
2
Max.
DCR
Current L/winding
Max. Isolation
(mA)
(µH)
(mOhms) (Vrms)
100
500
100
500
100
500
100
500
28
25
28
24
28
24
28
24
100
45
100
45
100
45
100
45
300
300
300
300
300
300
300
300
Typical Response*
* For optional cover add “C” to part number. Not available on 4 line parts.
*measured on HP8753D network analyzer.
Specifications subject to change without notice. Document 149 Revised 9/27/01
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