Coilcraft DW3316 Coupled Power Inductors<
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DW3316 Series Coupled Inductors

  • 2 balanced coupled inductors in a single package
  • Increases efficiency and lowers component count
  • Optimized for xDSL filtering applications
  • Can also be used as common mode choke or 1:1 transformer
  • 500 Vrms interwinding isolation
  • RoHS Compliant. 260°C compatible. Gold over nickel over phos bronze terminals.
  • COTS Plus tin-silver-copper and tin-lead terminations available
  • Custom versions are available


Part number1
Click to get parts
±20% (mH)
DCR max3
SRF typ4
DW3316-155ML_ 1.5 10.8 1.70 300
DW3316-275ML_ 2.7 18.0 1.25 230
DW3316-335ML_ 3.3 20.0 1.10 180
DW3316-395ML_ 3.9 23.0 0.968 160
DW3316-475ML_ 4.7 26.0 0.850 160
DW3316-685ML_ 6.8 42.0 0.690 150
1 When ordering, please specify termination and packaging codes: e.g. DW3316-685MLD
  Termination: L = Gold over nickel over phos bronze
Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) or
= non-RoHS tin-lead (63/37).
  Packaging: D = 13" reel, machine-ready 
EIA-481 embossed plastic tape (750 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.
2 Inductance is per winding, tested at 10 kHz, 0.1 Vrms using an Agilent/HP 4263B LCR meter or equivalent.
3 DCR measured at 25°C on a micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
4 SRF measured using Agilent/HP 8753D network analyzer.
5 Isat: DC current at which the inductance drops 10% (typ.) from its value without current.
6 Ambient temperature range: −40°C to +85°C
7 Storage temperature range: Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C
8 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
9 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.

Your comments and suggestions are welcome. Contact [email protected]
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Updated: April 16, 2018