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. 228-618
Mfr. Part No.1447440C
€3.41
Each
units
470 μH 4A Radial 125mΩ ±10% 31.7mm 31.8mm 29.8mm 21.8mm 31.7 x 29.8 x 21.8mm - 1.4MHz 29mm 1400
RS Stock No. 170-9323
Mfr. Part No.11R683C
€0.224
Each (On a Reel of 200)
units
68 μH 400mA Through Hole 850mΩ ±10% 5mm - - 7.5mm 5 (Dia.) x 7.5mm - 1kHz 2mm 1100R
RS Stock No. 106-7915
Mfr. Part No.15222C
€1.417
Each (In a Box of 40)
units
2.2 μH 15A Radial 4.2mΩ ±20% 16.8mm - - 21.3mm 16.8 (Dia.) x 21.3mm - 82MHz 13.6mm 1500
RS Stock No. 106-7781
Mfr. Part No.1430450C
€3.367
Each (In a Box of 15)
units
300 μH 5A Radial 80mΩ ±10% 29.8mm 33.3mm 31.3mm 23.3mm 29.8 (Dia.) x 23.3mm - 1.7MHz 29mm 1400
RS Stock No. 715-7147
Mfr. Part No.15222C
€1.47
Each
units
2.2 μH 15A Radial 4.2mΩ ±20% 16.8mm - - 21.3mm 16.8 (Dia.) x 21.3mm - 82MHz 13.6mm 1500
RS Stock No. 800-4366
Mfr. Part No.11R473C
€0.244
Each (In a Bag of 5)
units
47 μH 500mA - 540mΩ ±10% 5mm - - 7.5mm 5 (Dia.) x 7.5mm - 1kHz 2mm 1100R
RS Stock No. 629-9284
Mfr. Part No.22R106C
€0.71
Each (In a Pack of 5)
units
10 mH 63mA Radial 37.4Ω ±10% 7.2mm 7.7mm - 10.5mm 7.2 (Dia.) x 10.5mm - 620kHz 3mm 2200R
RS Stock No. 106-7754
Mfr. Part No.22R106C
€0.642
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. 170-9319
Mfr. Part No.11R473C
€0.222
Each (On a Reel of 200)
units
47 μH 500mA Radial 540mΩ ±10% 5mm - - 7.5mm 5 (Dia.) x 7.5mm - 1kHz 2mm 1100R
RS Stock No. 715-6787
Mfr. Part No.1430450C
€3.34
Each
units
300 μH 5A Radial 80mΩ ±10% - 33.3mm 31.3mm 23.3mm 33.3 x 31.3 x 23.3mm - 1.7MHz 29mm 1400
RS Stock No. 905-4968
Mfr. Part No.11R683C
€0.228
Each (In a Bag of 5)
units
68 μH 400mA Through Hole 850mΩ ±10% 5mm - - 7.5mm 5 (Dia.) x 7.5mm - 1kHz 2mm 1100R
RS Stock No. 715-6841
Mfr. Part No.1468505C
€2.41
Each
units
6.8 mH 500mA Radial 2810mΩ ±10% - 26.7mm 25.9mm 15.5mm 26.7 x 25.9 x 15.5mm - 500kHz 23mm 1400
RS Stock No. 170-9281
Mfr. Part No.12LRS475C
€0.551
Each (On a Reel of 250)
units
4.7 mH 180mA Radial 10.5Ω ±15% 10.5mm - - 8.5mm 10.5 (Dia.) x 8.5mm Ferrite - 5mm 1200LRS
RS Stock No. 170-9282
Mfr. Part No.12RS103C
€0.66
Each (On a Reel of 250)
units
10 μH 4.6A Radial 23mΩ ±20% 10.5mm - - 10.5mm 10.5 (Dia.) x 10.5mm Ferrite - 5mm 1200RS
RS Stock No. 170-9262
Mfr. Part No.19R473C
€1.219
Each (On a Reel of 80)
units
47 μH 3.4A Radial 38mΩ ±10% 12mm - - 21mm 12 (Dia.) x 21mm - - 6mm 1900R
RS Stock No. 106-7914
Mfr. Part No.1422604C
€3.367
Each (In a Box of 15)
units
22 mH 400mA Radial 6962mΩ ±10% 29.8mm 32mm 31.3mm 23.3mm 29.8 (Dia.) x 23.3mm - 0.2MHz 28.3mm 1400
RS Stock No. 800-4397
Mfr. Part No.13R334C
€0.50
Each (In a Bag of 5)
units
330 μH 580mA - 640mΩ ±10% 9.5mm - - 13.5mm 9.5 (Dia.) x 13.5mm - 1kHz 5mm 1300R
RS Stock No. 715-6747
Mfr. Part No.22R686C
€0.70
Each (In a Pack of 10)
units
68 mH 18mA Radial 242Ω ±10% 6.5mm 7.7mm - 10.5mm 6.5 (Dia.) x 10.5mm - 200kHz 3mm 2200R
RS Stock No. 106-7733
Mfr. Part No.1422435C
€2.127
Each (In a Box of 25)
units
220 μH 3.5A Radial 96mΩ ±10% 24.4mm 27.6mm 25.9mm 15.5mm 24.4 (Dia.) x 15.5mm - 2.8MHz 23.5mm 1400
RS Stock No. 170-9258
Mfr. Part No.15224C
€1.418
Each (On a Reel of 40)
units
220 μH 2.08A Radial 185mΩ ±10% 16.8mm - 16.8mm 21.3mm 16.8 (Dia.) x 21.3mm - 2MHz 14mm 1500