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. 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. 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. 288-222
Mfr. Part No.SF1122
TWD130.00
Each
units
2.9 mH - Flying Leads 500mΩ ±20% 32mm - 13mm - 32 (Dia.) x 13mm Composite Iron Powder - - SF
RS Stock No. 170-9251
Mfr. Part No.15102C
TWD61.60
Each (On a Reel of 40)
units
1 μH 16.2A Radial 2.76Ω ±20% 16.8mm - - 21.3mm 16.8 (Dia.) x 21.3mm - 142MHz 13.6mm 1500
RS Stock No. 162-1315
Mfr. Part No.760308102210
TWD254.90
Each (In a Tray of 22)
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. 484-6399
Mfr. Part No.7447728
TWD27.40
Each (In a Pack of 5)
units
10 μH 550mA Radial 50mΩ ±20% 7.2mm - - 10mm 7.2 (Dia.) x 10mm Ferrite 20MHz 2.54mm WE-TI
RS Stock No. 123-1535
Mfr. Part No.IHTH1125KZEB1R0M5A
BrandVishay
TWD310.00
Each
units
1 μH 90A Radial 500µΩ ±20% 28.5mm - - 10.7mm 28.5 (Dia.) x 10.7mm - 29.3MHz 14.4mm IHTH-1125KZ-5A
RS Stock No. 860-3997
Mfr. Part No.2307-V-RC
BrandBourns
TWD64.80
Each (In a Pack of 50)
units
33 μH 11.7A Radial 13mΩ ±15% 32.51mm - - 0.65in 1.28 (Dia.) x 0.65in - 1kHz 0.53in 2300
RS Stock No. 173-1584
Mfr. Part No.IHTH1125KZEB1R0M5A
BrandVishay
TWD249.50
Each (In a Tube of 15)
units
1 μH 90A Radial 500µΩ ±20% 28.5mm - - 10.7mm 28.5 (Dia.) x 10.7mm - 29.3MHz 14.4mm IHTH-1125KZ-5A
RS Stock No. 124-1530
Mfr. Part No.7447060
TWD71.40
Each (In a Pack of 5)
units
300 μH 2.5A Through Hole 150mΩ ±20% 21mm - - 11mm 21 (Dia.) x 11mm Ferrite, Iron Powder - 9mm WE-FI
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. 163-3384
Mfr. Part No.744821120
TWD83.70
Each (In a Box of 300)
units
20 mH 500mA Radial ±30% - 15mm 7.5mm 17.5mm 15 x 7.5 x 17.5mm - - 10mm WE-CMB HC
RS Stock No. 489-0289
Mfr. Part No.744823333
TWD144.00
Each
units
3.3 mH 2.5A Radial 60mΩ ±30% - 23.5mm 13.5mm 28mm 23.5 x 13.5 x 28mm - - 7.5mm WE-CMB HC
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. 167-6212
Mfr. Part No.13R226C
TWD18.30
Each (In a Box of 200)
units
22 mH 70mA Through Hole 48Ω ±10% 9.5mm - - 13.5mm 9.5 (Dia.) x 13.5 (H)mm - 1kHz 5mm 1300R
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. 163-3350
Mfr. Part No.7447728
TWD30.40
Each (In a Tray of 120)
units
10 μH 550mA Radial 50mΩ ±20% 7.2mm - - 10mm 7.2 (Dia.) x 10mm Ferrite 20MHz 2.54mm WE-TI
RS Stock No. 167-0188
Mfr. Part No.B82723J2102N001
BrandEPCOS
TWD82.40
Each (In a Box of 320)
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. 124-1528
Mfr. Part No.7447070
TWD108.20
Each (In a Pack of 5)
units
100 μH 6A Through Hole 35mΩ ±20% 25mm - - 11mm 25 (Dia.) x 11mm Ferrite, Iron Powder - 8mm WE-FI
RS Stock No. 191-0598
Mfr. Part No.B78108S1104J000
BrandEPCOS
TWD8.60
Each (In a Pack of 10)
units
100 μH 370mA Axial 1.7Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 5MHz - BC