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. 871-1515
Mfr. Part No.B82731M2112A030
BrandEPCOS
MYR13.777
Each (In a Bag of 3)
units
10 mH 1.1A Radial 400mΩ -30 → +50% - 21mm 15mm 20mm 21 x 15 x 20mm Ferrite 10kHz 12.5mm B82731M
RS Stock No. 191-0582
Mfr. Part No.B78108S1823J000
BrandEPCOS
MYR1.52
Each (In a Pack of 10)
units
82 μH 390mA Axial 1.54Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 6MHz - BC
RS Stock No. 163-3634
Mfr. Part No.744132
MYR10.307
Each (In a Bag of 100)
units
49 μH 5.8A Lead Wire 50mΩ ±20% 21mm - 10.9mm 10.9mm 21 (Dia.) x 10.9mm Ferrite - 8.5mm WE-SI
RS Stock No. 134-9994
Mfr. Part No.RLB0913-1R0K
BrandBourns
MYR1.356
Each (In a Tray of 600)
units
1 μH 10A Radial 13mΩ ±10% 8.5mm - - 12.5mm 8.5 (Dia.) x 12.5mm Ferrite 150MHz 5mm RLB0913
RS Stock No. 228-444
Mfr. Part No.1447423C
MYR12.57
Each
units
470 μH 2.3A Radial 250mΩ ±10% 25.7mm 24mm 24.4mm 14mm 25.7 x 24.4 x 14mm - 2MHz 23.3mm 1400
RS Stock No. 488-9964
Mfr. Part No.744741102
MYR6.216
Each (In a Pack of 10)
units
1 mH 290mA Radial ±10% 8.5mm - - 6.5mm 8.5 (Dia.) x 6.5mm Ferrite - 5mm WE-TI
RS Stock No. 860-3925
Mfr. Part No.2100LL-221-H-RC
BrandBourns
MYR7.718
Each (In a Pack of 864)
units
220 μH 3.5A Radial 53mΩ ±20% 21.84mm 24.13mm - 11.43mm 21.84 (Dia.) x 11.43mm - 1kHz 19.3mm 2100LL
RS Stock No. 816-4830
Mfr. Part No.7448052303
MYR70.80
Each
units
2 x 3 mH 23A Through Hole 2 x 3mΩ -30 → +50% - 36mm 23mm 36mm 36 x 23 x 36mm Nano Crystalline 1 kHz → 300 MHz 25mm WE-CMBNC
RS Stock No. 181-5776
Mfr. Part No.SN14P-770H
BrandKEMET
MYR23.99
Each (In a Tray of 50)
units
550 μH 3A Through Hole 0.085mΩ - 34mm - - 18.7mm 34 (Dia.) x 18.7mm Iron - 30mm SN
RS Stock No. 106-7754
Mfr. Part No.22R106C
MYR3.44
Each (In a Bag of 100)
units
10 mH 63mA Radial 37.4Ω ±10% 7.2mm 7.2mm 8.5mm 10.5mm 7.2 (Dia.) x 10.5mm - 0.62MHz 3mm 2200R
RS Stock No. 772-0212
Mfr. Part No.B82725A2802N001
BrandEPCOS
MYR34.02
Each
units
2.7 mH 8A Radial 22mΩ ±30% - 44mm 42.4mm 25mm 44 x 42.4 x 25mm Ferrite - 15 mm, 40mm B82721A
RS Stock No. 866-1892
Mfr. Part No.ZKD400/800-70
BrandFUSS-EMV
MYR1,205.90
Each
units
1 mH 70A Panel Mount - - - 150mm 130mm 130mm 150 x 175 x 130mm - - - ZKD400/800
RS Stock No. 104-8414
BrandRS PRO
MYR4.20
Each (In a Pack of 10)
units
100 μH 500mA Radial 0.14mΩ ±15% 14mm - - 8mm 14 (Dia.) x 8mm - - - DP
RS Stock No. 669-0371
Mfr. Part No.744842565
MYR39.27
Each
units
65 μH 5A Radial 13mΩ ±30% - 18.5mm 14.5mm 22mm 18.5 x 14.5 x 22mm - - 7.7mm WE-CMB
RS Stock No. 629-9278
Mfr. Part No.22R334C
MYR2.636
Each (In a Pack of 5)
units
330 μH 380mA Radial 1210mΩ ±10% 6.5mm 7.7mm - 10.5mm 6.5 (Dia.) x 10.5mm - 3.7MHz 3mm 2200R
RS Stock No. 715-7320
Mfr. Part No.12LRS684C
MYR3.02
Each
units
680 μH 500mA Radial 1650mΩ ±15% 10.5mm - - 8.5mm 10.5 (Dia.) x 8.5mm - - 5mm 1200LRS
RS Stock No. 899-7034
Mfr. Part No.744750420100
MYR8.55
Each (In a Bag of 5)
units
10 μH 6.2A Radial 15.5mΩ ±20% 12.8mm - - 9mm 12.8 (Dia.) x 9mm Ferrite - 10mm WE-FAMI
RS Stock No. 181-5817
Mfr. Part No.SN8D-300JB
BrandKEMET
MYR12.873
Each (In a Tray of 91)
units
45 μH 2A Through Hole 70mΩ - - 18.5mm 15.5mm 18mm 18.5 x 15.5 x 18mm Iron - 14mm SN-JB
RS Stock No. 871-1420
Mfr. Part No.B82747S6313N061
BrandEPCOS
MYR98.83
Each
units
950 μH 31A Radial 1.5mΩ ±30% 64mm 38.5mm - 35mm 64 (Dia.) x 35mm Ferrite 100kHz - B82747S
New
RS Stock No. 217-7337
Mfr. Part No.7444011480220
MYR11.548
Each (In a Tray of 80)
units
22 μH 8A - 10mΩ 20% - - - - - - 9MHz - WE-HIDA THT