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. 191-1169
Mfr. Part No.B82144A2474J000
BrandEPCOS
€0.604
Each (In a Pack of 5)
units
470 μH 280mA Axial 2.5Ω ±5% 5.2mm 14.8mm - - 5.2 (Dia.) x 14.8mm Ferrite 1.5MHz - LBC
RS Stock No. 162-0212
Mfr. Part No.B82144A2474J000
BrandEPCOS
€0.296
Each (On a Reel of 1500)
units
470 μH 280mA Axial 2.5Ω ±5% 5.2mm 14.8mm - - 5.2 (Dia.) x 14.8mm Ferrite 1.5MHz - LBC
RS Stock No. 172-7285
Mfr. Part No.2301-V-RC
BrandBourns
€3.075
Each (In a Bag of 50)
units
10 μH 20A Radial 5mΩ ±15% 32.51mm - 16.51mm 16.51mm 32.512 (Dia.) x 16.51mm - - 14.224mm 2300
RS Stock No. 736-0958
Mfr. Part No.2301-V-RC
BrandBourns
€3.50
Each
units
10 μH 20A Radial 5mΩ ±15% 32.51mm - 0.65in 16.51mm 32.512 (Dia.) x 16.51mm - - 14.224mm 2300
RS Stock No. 736-0961
Mfr. Part No.2305-H-RC
BrandBourns
€3.22
Each
units
22 μH 16.4A Radial 7mΩ ±15% 32.51mm - - 16.51mm 32.512 (Dia.) x 16.51mm - - 29.972mm 2300
RS Stock No. 172-7291
Mfr. Part No.2305-H-RC
BrandBourns
€2.281
Each (In a Bag of 36)
units
22 μH 16.4A Radial 7mΩ ±15% 32.51mm - 16.51mm 16.51mm 32.512 (Dia.) x 16.51mm - - 29.972mm 2300
RS Stock No. 172-9911
Mfr. Part No.2305-V-RC
BrandBourns
€2.481
Each (In a Bag of 50)
units
22 μH 16.4A Radial 7mΩ ±15% 32.51mm - 16.51mm 16.51mm 32.512 (Dia.) x 16.51mm - - 14.224mm 2300
RS Stock No. 736-0964
Mfr. Part No.2305-V-RC
BrandBourns
€3.20
Each
units
22 μH 16.4A Radial 7mΩ ±15% 32.51mm - 0.65in 16.51mm 32.512 (Dia.) x 16.51mm - - 14.224mm 2300
RS Stock No. 811-8809
Mfr. Part No.RLB0914-220KL
BrandBourns
€0.189
Each (In a Bag of 10)
units
22 μH 1.9A Radial 90mΩ ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 9MHz 5mm RLB
RS Stock No. 172-7287
Mfr. Part No.2306-V-RC
BrandBourns
€3.075
Each (In a Bag of 50)
units
27 μH 15.6A Radial 8mΩ ±15% 32.51mm - 16.51mm 16.51mm 32.512 (Dia.) x 16.51mm - - 14.224mm 2300
RS Stock No. 167-8366
Mfr. Part No.B78108S1684J000
BrandEPCOS
€0.119
Each (On a Reel of 5000)
units
680 μH 150mA Axial 10Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 1.9MHz - BC
RS Stock No. 860-4004
Mfr. Part No.2313-V-RC
BrandBourns
€3.22
Each
units
120 μH 6.7A Radial 40mΩ ±15% 32.51mm 45.21mm - 16.51mm 32.51 (Dia.) x 16.51mm - 1kHz 13.21mm 2300
RS Stock No. 860-3944
Mfr. Part No.2109-V-RC
BrandBourns
€1.416
Each (In a Pack of 154)
units
47 μH 3.6A Radial 55mΩ ±15% 21.84mm 34.5mm - 11.43mm 21.8 (Dia.) x 11.43mm - 1kHz 7.87mm 2100
RS Stock No. 874-9784
Mfr. Part No.2300HT-220-V-RC
BrandBourns
€4.44
Each
units
22 μH 19A Radial 8mΩ ±15% 32.51mm 45.21mm - 16.5mm 32.512 (Dia.) x 16.51mm - - 14.22mm 2300HT
RS Stock No. 736-0977
Mfr. Part No.2306-V-RC
BrandBourns
€3.50
Each
units
27 μH 15.6A Radial 8mΩ ±15% 32.51mm - 0.65in 16.51mm 32.512 (Dia.) x 16.51mm - - 14.224mm 2300
RS Stock No. 167-8369
Mfr. Part No.B78108S1475J000
BrandEPCOS
€0.136
Each (On a Reel of 5000)
units
4.7 mH 55mA Axial 78Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 700kHz - BC
RS Stock No. 484-6399
Mfr. Part No.7447728
€0.776
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. 736-1201
Mfr. Part No.RLB0914-221KL
BrandBourns
€0.189
Each (In a Bag of 10)
units
220 μH 700mA Radial 600mΩ ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 2.4MHz 5mm RLB
RS Stock No. 191-0699
Mfr. Part No.B78108S1684J000
BrandEPCOS
€0.225
Each (In a Pack of 10)
units
680 μH 150mA Axial 10Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 1.9MHz - BC
RS Stock No. 163-3350
Mfr. Part No.7447728
€0.648
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