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. 228-179
BrandRS PRO
SGD4.51
Each
units
100 μH 550mA Axial 670mΩ - 3.3mm 67.54mm - 9.14mm 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309
RS Stock No. 173-0063
BrandRS PRO
SGD6.683
Each (In a Box of 36)
units
68 μH 1A Radial 42mΩ ±15% 50mm - - 21mm 50 (Dia.) x 21mm - - - DP
RS Stock No. 104-8447
BrandRS PRO
SGD10.655
Each (In a Pack of 2)
units
68 μH 10A Radial 0.042mΩ ±15% 50mm - - 21mm 50 (Dia.) x 21mm - - - DP
RS Stock No. 228-191
BrandRS PRO
SGD1.25
Each
units
470 μH 240mA Axial 3.4Ω - 3.3mm 67.54mm - 9.14mm 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309
RS Stock No. 104-8448
BrandRS PRO
SGD8.53
Each (In a Pack of 2)
units
100 μH 10A Radial 0.044mΩ ±15% 50mm - - 21mm 50 (Dia.) x 21mm - - - DP
RS Stock No. 173-0065
BrandRS PRO
SGD7.867
Each (In a Box of 36)
units
100 μH 1A Radial 44mΩ ±15% 50mm - - 21mm 50 (Dia.) x 21mm - - - DP
RS Stock No. 228-163
BrandRS PRO
SGD4.73
Each
units
47 μH 760mA Axial 350mΩ - 3.3mm 67.54mm - 9.14mm 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309
RS Stock No. 173-0242
BrandRS PRO
SGD1.816
Each (In a Box of 480)
units
47 μH 2A Radial 90mΩ ±15% 15mm - - 8mm 15 (Dia.) x 8mm - - - DP
RS Stock No. 104-8430
BrandRS PRO
SGD1.492
Each (In a Pack of 10)
units
33 μH 3A Radial 0.038mΩ ±15% 19mm - - 8mm 19 (Dia.) x 8mm - - - DP
RS Stock No. 104-8437
BrandRS PRO
SGD2.24
Each (In a Pack of 5)
units
150 μH 3A Radial 0.107mΩ ±15% 25mm - - 12mm 25 (Dia.) x 12mm - - - DP
RS Stock No. 104-8432
BrandRS PRO
SGD4.304
Each (In a Pack of 5)
units
470 μH 1A Radial 0.18mΩ ±15% 27mm - - 12mm 27 (Dia.) x 12mm - - - DP
RS Stock No. 228-135
BrandRS PRO
SGD2.43
Each
units
4.7 μH 1.7A Axial 68mΩ ±10% 3.3mm 9.14mm - 9.14mm 3.3 (Dia.) x 9.14mm Ferrite 95MHz - APIE0309
RS Stock No. 104-8418
BrandRS PRO
SGD1.909
Each (In a Pack of 10)
units
47 μH 1A Radial 0.063mΩ ±15% 14mm - - 8mm 14 (Dia.) x 8mm - - - DP
RS Stock No. 104-8444
BrandRS PRO
SGD2.236
Each (In a Pack of 5)
units
47 μH 7.5A Radial 0.026mΩ ±15% 31mm - - 14mm 31 (Dia.) x 14mm - - - DP
RS Stock No. 173-0226
BrandRS PRO
SGD1.73
Each (In a Box of 480)
units
47 μH 1A Radial 63mΩ ±15% 14mm - - 8mm 14 (Dia.) x 8mm - - - DP
RS Stock No. 173-0039
BrandRS PRO
SGD1.618
Each (In a Box of 160)
units
68 μH 5A Radial 55mΩ ±15% 26mm - - 12mm 26 (Dia.) x 12mm - - - DP
RS Stock No. 104-8431
BrandRS PRO
SGD1.492
Each (In a Pack of 5)
units
47 μH 3A Radial 0.048mΩ ±15% 20mm - - 8mm 20 (Dia.) x 8mm - - - DP
RS Stock No. 228-141
BrandRS PRO
SGD4.17
Each
units
10 μH 1.5A Axial 95mΩ - 3.3mm 67.54mm - 9.14mm 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309
RS Stock No. 173-0053
BrandRS PRO
SGD3.492
Each (In a Box of 60)
units
150 μH 5A Radial 94mΩ ±15% 41mm - - 13mm 41 (Dia.) x 13mm - - - DP
RS Stock No. 104-8440
BrandRS PRO
SGD1.888
Each (In a Pack of 5)
units
68 μH 5A Radial 0.055mΩ ±15% 26mm - - 12mm 26 (Dia.) x 12mm - - - DP