Leaded Inductors

Leaded inductors are components that 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 as opposed to an electric field, which is stored by a capacitor. These inductors can found in several different shapes, including radial, axial and through-hole components and leads attached concentrically to the opposite ends of the inductor cores or as linear components. At RS Components, we have a varied range of leaded inductors, including axial, radial, through-hole and panel-mount inductors, with products from brands such as Bourns, EPCOS, Murata Power Solutions, Panasonic, Wurth Elektronik and our own RS PRO brand.

What are leaded inductors used for?

Leaded inductors are used to suppress asymmetrical interferences in low-voltage and high-voltage circuits. They typically have ferrite cores, however it is possible to find leaded inductors with cores made of other materials, such as nano crystalline or iron. With low or DC voltages, they act as continuous circuits to keep the current flowing if there are interferences but otherwise have no effect on the signal. With high voltage applications, they are able to prevent the current from flowing due to their high resistance, thus are used to protect the circuit from voltage spikes and prevent damages.

Types of leaded inductors

Leaded inductors come in two main categories, VHF-choke and RF-choke:

  • 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. 163-3405
Mfr. Part No.744825510
SGD8.967
Each (In a Tray of 20)
units
10 mH 5A Radial 55mΩ ±30% - 30.5mm 21mm 35mm 30.5 x 21 x 35mm - - 25mm WE-CMB HC
RS Stock No. 489-0419
Mfr. Part No.744825510
SGD9.94
Each
units
10 mH 5A Radial 55mΩ ±30% - 30.5mm 21mm 35mm 30.5 x 21 x 35mm - - 25mm WE-CMB HC
RS Stock No. 106-7931
Mfr. Part No.19R156C
SGD2.069
Each (In a Box of 80)
units
15 mH 190mA Radial 12Ω ±10% 12mm - - 21mm 12 (Dia.) x 21mm - - 6mm 1900R
RS Stock No. 715-7263
Mfr. Part No.19R156C
SGD2.44
Each
units
15 mH 190mA Radial 12Ω ±10% 12mm - - 21mm 12 (Dia.) x 21mm - - 6mm 1900R
RS Stock No. 228-179
BrandRS PRO
SGD6.33
Each
units
100 μH 550mA Axial - - 3.3mm 9.14mm - - 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309
RS Stock No. 800-4353
Mfr. Part No.11R102C
SGD0.448
Each (In a Bag of 5)
units
1 μH 3A - 20mΩ ±20% 5mm - - 7.5mm 5 (Dia.) x 7.5mm - 1kHz 2mm 1100R
RS Stock No. 106-7940
Mfr. Part No.11R102C
SGD0.404
Each (In a Bag of 200)
units
1 μH 3A - 20mΩ ±20% 5mm - - 7.5mm 5 (Dia.) x 7.5mm - 1kHz 2mm 1100R
RS Stock No. 920-7017
Mfr. Part No.ELC09D151F
BrandPanasonic
SGD0.478
Each (In a Bag of 500)
units
150 μH 740mA Radial 320mΩ ±10% 9.5mm - - 8.9mm 9.5 (Dia.) x 8.9mm Ferrite - 5mm ELC09D
RS Stock No. 110-1314
Mfr. Part No.ELC18B220L
BrandPanasonic
SGD1.607
Each (In a Bag of 500)
units
22 μH 5.4A Radial 25mΩ ±10% - 20mm 18mm 27mm 20 x 18 x 27mm Ferrite - 7.5mm ELC18B
RS Stock No. 162-0235
Mfr. Part No.B82145A1334J000
BrandEPCOS
SGD0.677
Each (On a Reel of 1250)
units
330 μH 630mA Axial 1.3Ω ±5% 6.5mm 12mm - - 6.5 (Dia.) x 12mm Ferrite 2.1MHz 15mm HLBC
RS Stock No. 880-7266
Mfr. Part No.B82145A1334J000
BrandEPCOS
SGD1.309
Each (In a Bag of 10)
units
330 μH 630mA Axial 1.3Ω ±5% 6.5mm 12mm - - 6.5 (Dia.) x 12mm Ferrite 2.1MHz 15mm HLBC
RS Stock No. 233-5370
Mfr. Part No.ELC18B220L
BrandPanasonic
SGD4.06
Each
units
22 μH 5.4A Radial 25mΩ ±10% - 20mm 18mm 27mm 20 x 18 x 27mm Ferrite - 7.5mm ELC18B
RS Stock No. 880-7272
Mfr. Part No.B82145A1684J000
BrandEPCOS
SGD1.155
Each (In a Bag of 10)
units
680 μH 440mA Axial 2.5Ω ±5% 6.5mm 12mm - - 6.5 (Dia.) x 12mm Ferrite 1.5MHz 15mm HLBC
RS Stock No. 751-1790
Mfr. Part No.7G14D-100M
SGD2.607
Each (In a Pack of 10)
units
10 μH 15A Radial 9.2mΩ ±20% - 14mm 9.6mm 16mm 14 x 9.6 x 16mm - - 9.2mm 7G14D
RS Stock No. 191-0532
Mfr. Part No.B78108S1333K000
BrandEPCOS
SGD0.548
Each (In a Pack of 10)
units
33 μH 500mA Axial 920mΩ ±10% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 9MHz - BC
RS Stock No. 167-8355
Mfr. Part No.B78108S1333K000
BrandEPCOS
SGD0.192
Each (On a Reel of 5000)
units
33 μH 500mA Axial 920mΩ ±10% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 9MHz - BC
RS Stock No. 871-1540
Mfr. Part No.B82731M2801A030
BrandEPCOS
SGD5.147
Each (In a Bag of 3)
units
22 mH 800mA Radial 800mΩ -30 → +50% - 21mm 15mm 20mm 21 x 15 x 20mm Ferrite 10kHz 12.5mm B82731M
RS Stock No. 173-2199
Mfr. Part No.PE-92113NL
BrandPulse
SGD6.74
Each (In a Tube of 30)
units
170 μH 5A Radial 50mΩ ±20% 41.91mm - 17.78mm - 41.91 (Dia.) x 17.78mm - - 12.7mm -
RS Stock No. 167-0392
Mfr. Part No.B82731M2801A030
BrandEPCOS
SGD2.751
Each (In a Box of 800)
units
22 mH 800mA Radial 800mΩ -30 → +50% - 21mm 15mm 20mm 21 x 15 x 20mm Ferrite 10kHz 12.5mm B82731M
RS Stock No. 162-0250
Mfr. Part No.B82145A1684J000
BrandEPCOS
SGD0.634
Each (On a Reel of 1250)
units
680 μH 440mA Axial 2.5Ω ±5% 6.5mm 12mm - - 6.5 (Dia.) x 12mm Ferrite 1.5MHz 15mm HLBC