Power Inductors


Power inductors typically need to support a ripple current AND support a high peak current without saturating. With switch mode power supply frequencies moving upward every year, the demands on inductors are starting to outpace conventional wire wound technologies. That’s why we maintain an active R and D effort focused on switch mode power supply magnetics. With three patents and 1000’s of power inductors currently in use, we are recognized as an industry leader for best in class engineering solutions for this important component. Talk to our highly capable designers about any of your power inductor requirements. More info about our power inductors.


1kW PC Mount transformer

Shaped Foil Inductor (WCM319 Series)

Designed for buck/boost differential SMPS applications
  • Inductance: 7uH to 380 uH
  • Frequency: 10-500 kHz
  • Max current: 55 amp
  • Power: to 5kW

Power Inductors (WCM320 Series)

Designed for buck/boost differential SMPS applications
  • Inductance: 12uH to 230 uH
  • Frequency: 10-500 kHz
  • Max current: 55 amps
  • Power: to 10kW

Compact Shaped Foil Inductor (WCM318 Series)

Designed for buck/boost differential SMPS applications
  • Inductance: 3uH to 112 uH
  • Frequency: 50-500 kHz
  • Max current: 55 amp

Compact Shaped Foil Inductor (WCM317 Series)

Designed for buck/boost differential SMPS applications
  • Inductance: 2uH to 63 uH
  • Frequency: 50-500 kHz
  • Max current: 55 amp
305 50 Amp common mode choke

High Temperature 50 Amp Choke (WCM305 Series)

  • DC Current to 50 amps
  • Low EMI toroidal design
  • Temperature rating of 200°C
  • Inductance from 1µH to 500µH
306 high current power inductors

High Current Power Inductor (WCM306 Series)

  • DC or Rms current to 75 Amps
  • Inductance to 590 µH
  • High ripple at frequencies to 500 KHz
307 shaped foil chassis inductor

Shaped Foil Chassis Inductor (307 Series)

  • Compact Size
  • High Current Rating
  • Shaped Foil TechnologyTM
  • 200C Temperature Rating
308 shaped foil chassis inductor

Shaped Foil SMD Inductor (308 Series)

  • Compact Size
  • Low Cost
  • High Current Rating
  • Shaped Foil TechnologyTM
  • 200C Temperature Rating
323 high current inductors

High Current Inductors (323 Series)

  • RoHS Compliant
  • 200 degree C rating
  • Low EMI due to toroidal design
high power inductor

70 uH 220 amp Chassis Mount

Chassis Mount 75 uH, 220 Amp.- Used in a wireless charging system for a zero emission all electric bus, this boost inductor manages 100 kW of high ripple current at 10 kHz. Incorporating WCM’s patented foil technology this design has low AC loss and low DC resistance and the core has a high Bsat to handle over 200 amps of peak current.

750 uH 8 amp Toroidal

Toroidal: This 1 mH, 8 amp powdered core toroidal inductor is ideal for buck boost applications at power levels up to 10 kW, and frequencies up to 250 kHz. With a soft roll off of L vs. Ipk, very low EMI and low distributed capacitance, this inductor is suitable for applications with up to 10% peak to peak ripple. Different core options and winding options are available depending on the specific design objectives.
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