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. 228-618
Mfr. Part No.1447440C
$6.90
Each
units
470 μH 4A Radial 125mΩ ±10% - 31.7mm 29.8mm 21.8mm 31.7 x 29.8 x 21.8mm - 1.4MHz 29mm 1400
RS Stock No. 167-8306
Mfr. Part No.B82722A2302N001
BrandEPCOS
$2.794
Each (In a Box of 600)
units
1.2 mH 3A Radial 56mΩ ±30% - 22.3mm 22.7mm 13.2mm 22.3 x 22.7 x 13.2mm Ferrite - 20mm B82721A
RS Stock No. 288-036
Mfr. Part No.B82722A2302N001
BrandEPCOS
$5.35
Each
units
1.2 mH 3A Radial 56mΩ ±30% - 22.3mm 22.7mm 13.2mm 22.3 x 22.7 x 13.2mm Ferrite - 20mm B82721A
RS Stock No. 489-0318
Mfr. Part No.744824101
$9.31
Each
units
1 mH 10A Radial 7mΩ ±30% - 27.5mm 18.5mm 33mm 27.5 x 18.5 x 33mm - - 10mm WE-CMB
RS Stock No. 240-618
Mfr. Part No.22R473C
$1.025
Each (In a Pack of 10)
units
47 μH 770mA Radial 220mΩ ±10% - 7.7mm - 10.5mm - - 10.9MHz 3mm 2200R
RS Stock No. 675-5201
Mfr. Part No.ELC10D221E
BrandPanasonic
$1.828
Each (In a Pack of 5)
units
220 μH 1.1A Radial 210mΩ ±10% - 13mm 10mm 15mm 13 x 10 x 15mm - - 5mm ELC10D
RS Stock No. 106-7745
Mfr. Part No.22R473C
$0.909
Each (In a Bag of 100)
units
47 μH 770mA Radial 220mΩ ±10% - 7.7mm - 10.5mm - - 10.9MHz 3mm 2200R
RS Stock No. 163-3398
Mfr. Part No.744824101
$9.345
Each (In a Box of 25)
units
1 mH 10A Radial 7mΩ ±30% - 27.5mm 18.5mm 33mm 27.5 x 18.5 x 33mm - - 10mm WE-CMB
RS Stock No. 110-1341
Mfr. Part No.ELC10D221E
BrandPanasonic
$0.757
Each (In a Bag of 500)
units
220 μH 1.1A Radial 210mΩ ±10% - 13mm 10mm 15mm 13 x 10 x 15mm - - 5mm ELC10D
RS Stock No. 638-7785
Mfr. Part No.22R104C
$1.04
Each (In a Pack of 10)
units
100 μH 670mA Radial 390mΩ ±10% - 7.7mm - 10.5mm - - 7MHz 3mm 2200R
RS Stock No. 167-8436
Mfr. Part No.B82111B0000C021
BrandEPCOS
$2.412
Each (On a Reel of 150)
units
5 μH 10A Axial 5mΩ - 9.5mm 34mm - - 9.5 (Dia.) x 34mm Ferrite 175MHz - B82111B
RS Stock No. 213-1819
Mfr. Part No.B82111B0000C021
BrandEPCOS
$3.50
Each
units
5 μH 10A Axial 5mΩ - 9.5mm 34mm - - 9.5 (Dia.) x 34mm Ferrite 175MHz - B82111B
RS Stock No. 106-7755
Mfr. Part No.22R104C
$0.909
Each (In a Bag of 100)
units
100 μH 670mA Radial 390mΩ ±10% - 7.7mm - 10.5mm - - 7MHz 3mm 2200R
RS Stock No. 228-179
BrandRS PRO
$4.69
Each
units
100 μH 550mA Axial - - 3.3mm 9.14mm - - 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309
RS Stock No. 166-0208
Mfr. Part No.B82134A5202M000
BrandEPCOS
$1.196
Each (On a Reel of 1000)
units
20 μH 2A Axial 150mΩ ±20% 7.5mm 30mm - - 7.5 (Dia.) x 30mm Carbonyl Iron 59MHz 32.5mm VHF
RS Stock No. 880-7171
Mfr. Part No.B82134A5202M000
BrandEPCOS
$3.256
Each (In a Bag of 5)
units
20 μH 2A Axial 150mΩ ±20% 7.5mm 30mm - - 7.5 (Dia.) x 30mm Carbonyl Iron 59MHz 32.5mm VHF
RS Stock No. 166-0181
Mfr. Part No.B82144A2225J000
BrandEPCOS
$0.48
Each (On a Reel of 1500)
units
2.2 mH 120mA Axial ±5% 5.2mm 12mm - - 5.2 (Dia.) x 12mm Ferrite 800kHz 15mm LBC
RS Stock No. 163-3309
Mfr. Part No.744743102
$2.41
Each (In a Tray of 100)
units
1 mH 420mA Radial 2.5Ω ±10% 8mm - - 12.5mm 8 (Dia.) x 12.5mm Ferrite - 5mm WE-TI
RS Stock No. 172-9728
Mfr. Part No.RL622-104K-RC
BrandBourns
$1.068
Each (In a Bag of 100)
units
100 mH 20mA Radial 235Ω ±10% 8.5mm - - 11mm 8.5 (Dia.) x 11mm Ferrite 100kHz 5mm RL622
RS Stock No. 489-0122
Mfr. Part No.744743102
$2.794
Each (In a Pack of 10)
units
1 mH 420mA Radial 2.5Ω ±10% 8mm - - 12.5mm 8 (Dia.) x 12.5mm Ferrite - 5mm WE-TI
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