Leaded Inductors

Leaded inductors are components with through hole features and leads attached concentrically to the opposite ends of the inductor cores. They act as resistors to changes in currents and absorb EMI (electromagnetic interference) which could affect the status of electrical circuits in devices.

Leaded inductors are composed of coils wrapped around magnetic cores and store energy in the form of a magnetic field.

What are leaded inductors used for?

They are used to suppress asymmetrical interferences in low-voltage and high-voltage circuits.

With low voltages, they act as continuous circuits to keep the current flowing if there are interferences. With high voltages, they are able to prevent current from flowing due to their high resistance, thus are used to protect the circuit from voltage spikes.

Types of leaded inductors

Leaded inductors come in two main categories:

  • VHF (very high frequency) versions are used for line voltage applications to block or filter EMI in small applications or for decoupling in telecom and entertainment electronics.
  • RF (radio frequency) versions are used in low-frequency applications of signal and control circuits and are designed to block radio frequencies while allowing audio signals to be transmitted.

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Description Price Inductance Maximum DC Current Mounting Type Maximum DC Resistance Tolerance Diameter Length Depth Height Dimensions Core Material Maximum Self Resonant Frequency Lead Pitch Series
RS Stock No. 717-3499
Mfr. Part No.DFKH-22-0002
BrandSchurter
$4.81
Each
units
20 mH 1A Radial 500mΩ -30 → +50% - 23mm 13mm 24mm 23 x 13 x 24mm - 250kHz 10 mm, 20 mm DFKH
RS Stock No. 717-3543
Mfr. Part No.DFSG-25-0002
BrandSchurter
$10.81
Each
units
- 3A Radial 100mΩ - - 22.5mm 22.5mm 19mm 22.5 x 22.5 x 19mm Iron - 10 mm, 15 mm DFSG
RS Stock No. 717-3489
Mfr. Part No.DFKH-14-0001
BrandSchurter
$4.83
Each
units
11 mH 600mA Radial 600mΩ -30 → +50% - 15mm 10.5mm 13.5mm 15 x 10.5 x 13.5mm - 500kHz 7.5 mm, 12.5 mm DFKH
RS Stock No. 717-3506
Mfr. Part No.DFKH-22-0005
BrandSchurter
$5.53
Each
units
600 μH 6A Radial 15mΩ -30 → +50% - 23mm 13mm 24mm 23 x 13 x 24mm - 2.5MHz 10 mm, 20 mm DFKH
RS Stock No. 717-3559
Mfr. Part No.DFSG-30-0002
BrandSchurter
$11.22
Each
units
- 6A Radial 60mΩ - - 30mm 30mm 22mm 30 x 30 x 22mm Iron - 10 mm, 20 mm DFSG
RS Stock No. 717-3552
Mfr. Part No.DFSG-33-0002
BrandSchurter
$15.43
Each
units
- 10A Radial 30mΩ - - 33mm 33mm 25.5mm 33 x 33 x 25.5mm Iron - 15 mm, 17.5 mm DFSG
RS Stock No. 717-3528
Mfr. Part No.DFKH-31-0008
BrandSchurter
$6.71
Each
units
2 mH 6A Radial 24mΩ -30 → +50% - 31.5mm 18.5mm 33mm 31.5 x 18.5 x 33mm - 1.2MHz 12.5 mm, 15 mm DFKH
RS Stock No. 717-3483
Mfr. Part No.DFKH-14-0002
BrandSchurter
$5.02
Each
units
4 mH 1A Radial 250mΩ -30 → +50% - 15mm 10.5mm 13.5mm 15 x 10.5 x 13.5mm - 1.2MHz 7.5 mm, 12.5 mm DFKH
RS Stock No. 717-3521
Mfr. Part No.DFKH-31-0005
BrandSchurter
$7.52
Each
units
6.8 mH 2A Radial 150mΩ -30 → +50% - 31.5mm 18.5mm 33mm 31.5 x 18.5 x 33mm - 500kHz 12.5 mm, 15 mm DFKH