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. 756-8427
Mfr. Part No.7448263505
TWD666.00
Each
units
500 μH 35A Through Hole 2.3mΩ ±30% - 47mm 23.5mm 43mm 47 x 23.5 x 43mm Ferrite 100kHz 10.5mm WE-CMB HC
RS Stock No. 717-3499
Mfr. Part No.DFKH-22-0002
BrandSchurter
TWD100.00
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. 863-1273
Mfr. Part No.760308102210
TWD319.00
Each
units
7.5 μH 3A Axial 200mΩ ±10% - 37mm 1.8mm 37mm 37 x 37 x 1.8mm Ferrite 22MHz - WE-WPCC
RS Stock No. 852-3671
Mfr. Part No.IHD1BH5R6L
BrandVishay
TWD173.30
Each (In a Pack of 50)
units
5.6 μH 3.2A Axial 20mΩ ±15% 6.85mm - - 17.78mm 6.85 (Dia.) x 17.78mm Ferrite 1kHz - IHD
RS Stock No. 228-208
BrandRS PRO
TWD60.00
Each
units
1 mH 160mA Axial - - 3.3mm 9.14mm - - 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309
RS Stock No. 106-7739
Mfr. Part No.1410478C
TWD135.20
Each (In a Box of 15)
units
100 μH 7.8A Radial 40mΩ ±10% - 32.4mm 29.8mm 21.8mm 32.4 x 29.8 x 21.8mm - 3.3MHz 29.3mm 1400
RS Stock No. 923-6239
Mfr. Part No.7447221682
TWD45.00
Each (In a Pack of 10)
units
6.8 mH 280mA Radial 6.6Ω ±5% 11mm - - 17mm 11 (Dia.) x 17mm Ferrite 330kHz 6.5mm WE-TIF
RS Stock No. 167-8360
Mfr. Part No.B78108S1104J000
BrandEPCOS
TWD24,653.00
1 Reel of 5000
Reel(s)
100 μH 370mA Axial 1.7Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 5MHz - BC
RS Stock No. 432-4394
Mfr. Part No.744772470
TWD26.50
Each (In a Pack of 10)
units
47 μH 1.3A Radial 100mΩ ±10% 8.3mm - - 10mm 8.3 (Dia.) x 10mm Ferrite - 5mm WE-TI
RS Stock No. 163-3347
Mfr. Part No.744772470
TWD25.50
Each (In a Tray of 140)
units
47 μH 1.3A Radial 100mΩ ±10% 8.3mm - - 10mm 8.3 (Dia.) x 10mm Ferrite - 5mm WE-TI
RS Stock No. 883-7803
Mfr. Part No.RS614-4-02
BrandSchaffner
TWD138.70
Each (In a Pack of 25)
units
10 (Dual Load) μH, 40 (Dual Load) μH 4A Radial 20 (Dual Load) mΩ, 40 (Single Load) mΩ - - 15.5mm 23mm 25mm 15.5 x 23 x 25mm - 18 (Single Load) MHz, 22 (Dual Load) MHz 10mm RS
RS Stock No. 233-5285
Mfr. Part No.ELC08D681E
BrandPanasonic
TWD21.20
Each (In a Pack of 5)
units
680 μH 320mA Radial 930mΩ ±10% - 10mm 8.5mm 13mm 10 x 8.5 x 13mm Ferrite - 5mm ELC08D
RS Stock No. 715-6747
Mfr. Part No.22R686C
TWD28.10
Each (In a Pack of 10)
units
68 mH 18mA Radial 242Ω ±10% - 7.7mm - 10.5mm - - 200kHz 3mm 2200R
RS Stock No. 163-4251
Mfr. Part No.7448263505
TWD746.20
Each (In a Box of 18)
units
500 μH 35A Through Hole 2.3mΩ ±30% - 47mm 23.5mm 43mm 47 x 23.5 x 43mm Ferrite 100kHz 10.5mm WE-CMB HC
RS Stock No. 489-0302
Mfr. Part No.744823220
TWD140.00
Each
units
20 mH 1.5A Radial 270mΩ ±30% - 23mm 13mm 28mm 23 x 13 x 28mm - - 7.5mm WE-CMB HC
RS Stock No. 772-0183
Mfr. Part No.B82723J2102N001
BrandEPCOS
TWD97.00
Each
units
27 mH 1A Radial 750mΩ ±30% - 28mm 18.6mm 30.5mm 28 x 18.6 x 30.5mm Ferrite - 12.5 mm, 15 mm B82721A
RS Stock No. 163-3306
Mfr. Part No.744742223
TWD26.10
Each (In a Tray of 140)
units
22 mH 100mA Radial 55Ω ±5% 8.5mm - - 10mm 8.5 (Dia.) x 10mm Ferrite - 5mm WE-TI
RS Stock No. 106-7736
Mfr. Part No.1410516C
TWD82.70
Each (In a Box of 25)
units
1 mH 1.6A Radial 419mΩ ±10% - 27.1mm 25.9mm 15.5mm 27.1 x 25.9 x 15.5mm - 1.4MHz 23.2mm 1400
RS Stock No. 715-7100
Mfr. Part No.51505C
TWD93.00
Each
units
5 mH 1.2A Radial 197mΩ - - 21.75mm 10mm 24mm 21.75 x 10 x 24mm - - 12.7mm 5100
RS Stock No. 228-163
BrandRS PRO
TWD33.00
Each
units
47 μH 760mA Axial - - 3.3mm 9.14mm - - 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309