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Data Line EMI Filters

  • Common-mode and differential-mode filtering in a single component
  • Reduce conducted noise by a factor of 32 from 5 MHz to 300 MHz
  • Data frequencies below 200 MHz pass with minimal attenuation
  • Available in 8, 4, 3 and 2 wire versions
  • Meets IEC 695-2-2 needle flame test requirements
  • AEC-Q200 Grade 3 (–40°C to +85°C)
  • RoHS-compliant. Tin-silver over tin over phos bronze terminations.
  • Samples of all values plus surface mount versions are available in Coilcraft Designer's Kit D303

SPECIFICATIONS


Part number1
Click for samples
Lines Common mode
peak impedance
(kOhms)
Cutoff
frequency2
(MHz)
L min3
(µH)
DCR
max4
(mOhms)
Isolation5
(Vrms)
Current
max
(mA)
DLF 8000L1 8 2.03 @ 8.3 MHz 200 28 100 300 100
DLF 8500L1 8 0.60 @ 40 MHz 60 25 45 300 500
DLF 4000L 4 2.13 @ 12 MHz 390 28 100 300 100
DLF 4500L 4 1.62 @ 14 MHz 730 24 45 300 500
DLF 3000L1 3 1.98 @ 13 MHz 650 28 100 300 100
DLF 3500L 3 1.45 @ 15 MHz 670 24 45 300 500
DLF 2000L1 2 2.03 @ 14 MHz 660 28 100 300 100
DLF 2500L1 2 1.55 @ 14 MHz 610 24 45 300 500
1 For optional cover add "C" to part number just before the "L": e.g. DLF 8500CL. Not available on 3500, 4000 and 4500 parts.
2 Frequency at which the differential mode attenuation equals 3 dB.
3 Inductance is per winding.
4 DCR is per winding, measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Interwinding isolation measured for one minute.
6 Ambient temperature range: –40°C to +85°C
7 Storage temperature range: Component: –40°C to +85°C
Packaging trays or tubes: –40°C to +80°C
8 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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Updated: August 29, 2016