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DLF Series

Data Line EMI Filters

RoHS compliant AEC-Q flag
Our DLF Series data line EMI filters provide common mode and differential mode filtering in a single component. They reduce conducted noise by a factor of 32 from 5 MHz to 300 MHz and pass data frequencies below 200 MHz with minimal attenuation.
  • 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)
Buy Now:
Count Unit price
1 $5.36
100 $4.28
250 $3.72
500 $3.24
1000 $2.82
2500 $2.41
5000 $2.21

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
Request a Sample:
Designer's Kit:
Kit Values Price
D303 17 (4 of each) $75.00

Specifications

Electrical specifications at 25°C.

Part number 1 Lines Common mode
peak impedance (kΩ)
Cutoff
frequency (MHz) 2
Inductance
min (µH) 3
Irms (mA) DCR max (mΩ) 4 Isolation
Voltage (Vrms) 5
DLF 8000L 8 2.03 @ 8.3 MHz 200 28 100 100 300
DLF 8500L 8 0.60 @ 40 MHz 60.0 25 500 45 300
DLF 4000L 4 2.13 @ 12 MHz 390 28 100 100 300
DLF 4500L 4 1.62 @ 14 MHz 730 24 500 45 300
DLF 3000L 3 1.98 @ 13 MHz 650 28 100 100 300
DLF 3500L 3 1.45 @ 15 MHz 670 24 500 45 300
DLF 2000L 2 2.03 @ 14 MHz 660 28 100 100 300
DLF 2500L 2 1.55 @ 14 MHz 610 24 500 45 300
Notes
  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.

Termination:

  • Tin-silver over tin over phos bronze.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +85°C
Storage temperature range:
Component: –40°C to +85°C.
Tape and reel packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
60 per billion hours / 16,666,667 hours, calculated per Telcordia SR-332

Performance curves

Attenuation (Ref: 50 Ohms)

Typical Attenuation (Ref: 50 Ohms)

Impedance vs Frequency

Impedance vs Frequency

Schematics

dlfs.gif

Physical characteristics

Without Optional Cover 

dlfd.jpg

 

With Optional Cover 

dlfdc.jpg

 
Part Number Weight typ (g) Packaging
DLF 2000L 0.74 75 per tube
DLF 2000CL 1.32 64 per tube
DLF 2500L 0.78 75 per tube
DLF 2500CL 1.36 64 per tube
DLF 3000L 0.83 75 per tube
DLF 3000CL 1.41 64 per tube
DLF 3500L 0.91 75 per tube
DLF 4000L 0.95 55 per tube
DLF 4500L 1.09 55 per tube
DLF 8000L 1.56 27 per tube
DLF 8000CL 2.7 25 per tube
DLF 8500L 2.22 27 per tube
DLF 8500CL 3.36 25 per tube

General specification

Core Material:
Ferrite
Weight:
0.74 g - 3.36 g

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
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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