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. 811-8825
Mfr. Part No.RLB0912-102KL
BrandBourns
TWD11.10
Each (In a Bag of 10)
units
1 mH 200mA Radial 4.3Ω ±10% 8.7mm - - 10mm 8.7 (Dia.) x 10mm Ferrite 1.9MHz 5mm RLB
RS Stock No. 172-7064
Mfr. Part No.RLB0912-102KL
BrandBourns
TWD7.50
Each (In a Bag of 200)
units
1 mH 200mA Radial - ±10% 8.7mm - - 10mm 8.7 (Dia.) x 10mm Ferrite 1.9MHz 5mm RLB
RS Stock No. 811-8884
Mfr. Part No.RLB0912-3R3ML
BrandBourns
TWD10.40
Each (In a Bag of 10)
units
3.3 μH 3.6A Radial 18mΩ ±20% 8.7mm - - 10mm 8.7 (Dia.) x 10mm Ferrite 50MHz 5mm RLB
RS Stock No. 172-7062
Mfr. Part No.RLB0914-101KL
BrandBourns
TWD7.60
Each (In a Bag of 200)
units
100 μH 1A Radial - ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 3.5MHz 5mm RLB
RS Stock No. 811-8786
Mfr. Part No.RLB0914-101KL
BrandBourns
TWD11.20
Each (In a Bag of 10)
units
100 μH 1A Radial 280mΩ ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 3.5MHz 5mm RLB
RS Stock No. 172-8373
Mfr. Part No.RLB0912-3R3ML
BrandBourns
TWD7.50
Each (In a Bag of 200)
units
3.3 μH 3.6A Radial - ±20% 8.7mm - - 10mm 8.7 (Dia.) x 10mm Ferrite 50MHz 5mm RLB
RS Stock No. 860-3997
Mfr. Part No.2307-V-RC
BrandBourns
TWD91.50
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. 860-3953
Mfr. Part No.2116-H-RC
BrandBourns
TWD85.00
Each
units
220 μH 2.4A Radial 120mΩ ±15% 21.84mm - - 0.45in 0.86 (Dia.) x 0.45in - 1kHz 0.77in 2100
RS Stock No. 736-1150
Mfr. Part No.RL622-100K-RC
BrandBourns
TWD27.40
Each (In a Bag of 10)
units
10 μH 3A Radial 45mΩ ±10% 8.5mm - - 11mm 8.5 (Dia.) x 11mm Ferrite 14MHz 5mm RL622
RS Stock No. 736-0961
Mfr. Part No.2305-H-RC
BrandBourns
TWD146.00
Each
units
22 μH 16.4A Radial 7mΩ ±15% 32.51mm - - 0.65in 32.512 (Dia.) x 16.51mm - - 29.972mm 2300
RS Stock No. 172-8628
Mfr. Part No.RL875-222K-RC
BrandBourns
TWD27.60
Each (In a Bag of 100)
units
2.2 mH 180mA - - ±10% 7.8mm - - 7.5mm 7.8 (Dia.) x 7.5mm Ferrite 1.5MHz 5mm -
RS Stock No. 172-8362
Mfr. Part No.RLB0912-221KL
BrandBourns
TWD7.50
Each (In a Bag of 200)
units
220 μH 440mA Radial - ±10% 8.7mm - - 10mm 8.7 (Dia.) x 10mm Ferrite 4.5MHz 5mm RLB
RS Stock No. 122-9205
Mfr. Part No.RL622-4R7K-RC
BrandBourns
TWD23.80
Each (In a Pack of 10)
units
4.7 μH 4.3A Radial 30mΩ ±10% 8.5mm - - 11mm 8.5 (Dia.) x 11mm Ferrite 51MHz 5mm RL622
RS Stock No. 860-4004
Mfr. Part No.2313-V-RC
BrandBourns
TWD123.00
Each
units
120 μH 6.7A Radial 40mΩ ±15% 32.51mm - - 16.51mm 32.51 (Dia.) x 16.51mm - 1kHz 0.52in 2300
RS Stock No. 172-7074
Mfr. Part No.RLB0914-221KL
BrandBourns
TWD7.50
Each (In a Bag of 200)
units
220 μH 700mA Radial - ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 2.4MHz 5mm RLB
RS Stock No. 860-4063
Mfr. Part No.78F101J-RC
BrandBourns
TWD7.00
Each
units
100 μH 165mA Axial 4.1Ω ±5% 2.79mm - - 7.11mm 2.79 (Dia.) x 7.11mm Ferrite DR 5.5MHz - 78F
RS Stock No. 135-0100
Mfr. Part No.RLB0913-103K
BrandBourns
TWD17.80
Each (In a Pack of 10)
units
10 mH 50mA Radial 25Ω ±10% 8.5mm - - 12.5mm 8.5 x 12.5mm Ferrite 300kHz 5mm RLB0913
RS Stock No. 736-0964
Mfr. Part No.2305-V-RC
BrandBourns
TWD145.00
Each
units
22 μH 16.4A Radial 7mΩ ±15% 32.51mm - 0.65in - 32.512 (Dia.) x 16.51mm - - 14.224mm 2300
RS Stock No. 860-3938
Mfr. Part No.2105-H-RC
BrandBourns
TWD100.00
Each
units
22 μH 7A Radial 15mΩ ±15% 21.84mm - - 0.45in 0.86 (Dia.) x 0.45in - 1kHz 0.76in 2100
RS Stock No. 736-1191
Mfr. Part No.RLB0914-102KL
BrandBourns
TWD8.60
Each (In a Bag of 10)
units
1 mH 300mA Radial 2.1Ω ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 1.3MHz 5mm RLB