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Toroidal Common Mode Line Chokes – Standard & High L Series

  • Available in two series: standard inductance and high inductance
  • Single layer windings provide highest common mode impedance over the widest frequency range
  • Ideal for switching power supplies in the 100 – 300 kHz range of switching frequencies
  • UL1446 Class B (130°C) Insulation System (UL File E83628)
  • Creepage and clearance = 3.2 mm
  • 1250 Vrms, one minute isolation between windings
  • Refer to Designing Common Mode Filters for design guidance.
  • RoHS-compliant. Tin-silver over copper terminations.
  • Samples of several values are available in Coilcraft Designer's Kit P402

SPECIFICATIONS – Standard Series


Parts in red type are included in Coilcraft Designer's Kit P202
P3213-AL 3.5 mH 1.3 62 500 kHz 0.15 1250 0.051/1,29 15.8
P3214-AL 1.7 mH 2.0 32 850 kHz 0.065 1250 0.051/1,29 16.1
P3215-AL 1.0 mH 3.2 22 1250 kHz 0.036 1250 0.051/1,29 16.9
P3216-AL 0.75 mH 5.0 19 1300 kHz 0.022 1250 0.051/1,29 17.6
P3217-AL 0.425 mH 8.1 10 1750 kHz 0.012 1250 0.040/1,02 18.2
P3218-AL 0.275 mH 13 8 2000 kHz 0.008 1250 0.051/1,29 19.8
1 DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
2 All parts have #16 AWG solder coated copper wire leads except P3217-A, which has #18 AWG leads.
3 Ambient temperature range: –40°C to +85°C
4 Storage temperature range: Component: –40°C to +85°C
Packaging trays: –40°C to +80°C
5 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

SPECIFICATIONS – High Inductance Series

P3219-AL 10.8 mH 1.3 165 125 kHz 0.29 1250 0.051/1,29 36.0
P3220-AL 7.0 mH 2.0 100 225 kHz 0.15 1250 0.051/1,29 38.3
P3221-AL 3.7 mH 3.2 60 400 kHz 0.08 1250 0.051/1,29 38.7
P3222-AL 2.2 mH 5.0 35 600 kHz 0.04 1250 0.051/1,29 40.4
P3223-AL 1.1 mH 8.1 20 900 kHz 0.02 1250 0.040/1,02 40.9
P3224-AL 0.58 mH 13 10 1150 kHz 0.01 1250 0.051/1,29 40.9
1 DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
2 All parts have #16 AWG solder coated copper wire leads except P3223-A, which has #18 AWG leads.
3 Ambient temperature range: –40°C to +85°C
4 Storage temperature range: Component: –40°C to +85°C
Packaging trays: –40°C to +80°C
5 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: September 01, 2016