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. 104-8448
BrandRS PRO
PHP282.395
Each (In a Pack of 2)
units
100 μH 10A Radial 44mΩ ±15% 50mm - - 21mm 50 (Dia.) x 21mm - - - DP
RS Stock No. 173-0065
BrandRS PRO
PHP273.494
Each (In a Box of 36)
units
100 μH 10A Radial 44mΩ ±15% 50mm - - 21mm 50 (Dia.) x 21mm - - - DP
RS Stock No. 104-8433
BrandRS PRO
PHP96.194
Each (In a Pack of 5)
units
1 mH 1A Radial 426mΩ ±15% 26mm - - 13mm 26 (Dia.) x 13mm - - - DP
RS Stock No. 173-0046
BrandRS PRO
PHP87.734
Each (In a Box of 160)
units
1 mH 1A Radial 426mΩ ±15% 26mm - - 13mm 26 (Dia.) x 13mm - - - DP
RS Stock No. 769-0574
Mfr. Part No.RB6122-50-0M3
BrandSchaffner
PHP794.90
Each
units
250 μH 50A Radial 900µΩ -30 → +50% - 61mm 57.8mm 38mm 61 x 57.8 x 38mm - 400Hz 5.08mm RB
RS Stock No. 170-5162
Mfr. Part No.RB6122-50-0M3
BrandSchaffner
PHP762.489
Each (In a Box of 64)
units
250 μH 50A Radial 900µΩ -30 → +50% - 61mm 57.8mm 38mm 61 x 57.8 x 38mm - 400Hz 5.08mm RB
RS Stock No. 104-8447
BrandRS PRO
PHP370.52
Each (In a Pack of 2)
units
68 μH 10A Radial 42mΩ ±15% 50mm - - 21mm 50 (Dia.) x 21mm - - - DP
RS Stock No. 173-0063
BrandRS PRO
PHP232.347
Each (In a Box of 36)
units
68 μH 10A Radial 42mΩ ±15% 50mm - - 21mm 50 (Dia.) x 21mm - - - DP
RS Stock No. 850-7271
Mfr. Part No.CTX100-5-52-R
PHP392.049
Each (In a Pack of 32)
units
100 μH 8.2A Radial 27mΩ ±20% 37.8mm - - 16.8mm 37.8 (Dia.) x 16.8mm Iron - 13.6mm CTX
RS Stock No. 489-0318
Mfr. Part No.744824101
PHP271.66
Each
units
1 mH 10A Radial 7mΩ ±30% - 27.5mm 18.5mm 33mm 27.5 x 18.5 x 33mm - - 10mm WE-CMB
RS Stock No. 163-3398
Mfr. Part No.744824101
PHP226.049
Each (In a Box of 25)
units
1 mH 10A Radial 7mΩ ±30% - 27.5mm 18.5mm 33mm 27.5 x 18.5 x 33mm - - 10mm WE-CMB
RS Stock No. 617-1366
Mfr. Part No.744132
PHP170.50
Each
units
49 μH 5.8A Lead Wire 50mΩ ±20% 21mm - 9.5mm - 21 (Dia.) x 9.5mm Ferrite - 8.5mm WE-SI
RS Stock No. 163-3634
Mfr. Part No.744132
PHP120.246
Each (In a Bag of 100)
units
49 μH 5.8A Lead Wire 50mΩ ±20% 21mm - 9.5mm - 21 (Dia.) x 9.5mm Ferrite - 8.5mm WE-SI
RS Stock No. 163-3397
Mfr. Part No.744823601
PHP199.532
Each (In a Box of 90)
units
1 mH 6A Radial 13mΩ ±30% - 25mm 17mm 26.5mm 25 x 17 x 26.5mm - - 10.7mm WE-CMB
RS Stock No. 489-0267
Mfr. Part No.744823601
PHP254.68
Each
units
1 mH 6A Radial 13mΩ ±30% - 25mm 17mm 26.5mm 25 x 17 x 26.5mm - - 10.7mm WE-CMB
RS Stock No. 617-1316
Mfr. Part No.7447036
PHP116.28
Each
units
220 μH 1.6A Lead Wire 220mΩ ±20% 14mm - 7.5mm - 14 (Dia.) x 7.5mm Composite Iron Powder - 6mm WE-FI
RS Stock No. 871-1521
Mfr. Part No.B82731M2351A030
BrandEPCOS
PHP155.38
Each (In a Bag of 3)
units
100 mH 350mA Radial 4.5Ω -30 → +50% - 21mm 15mm 20mm 21 x 15 x 20mm Ferrite 10kHz 12.5mm B82731M
RS Stock No. 106-7755
Mfr. Part No.22R104C
PHP27.846
Each (In a Bag of 100)
units
100 μH 670mA Radial 390mΩ ±10% - 7.7mm - 10.5mm - - 7MHz 3mm 2200R
RS Stock No. 167-0382
Mfr. Part No.B82731M2351A030
BrandEPCOS
PHP86.221
Each (In a Box of 800)
units
100 mH 350mA Radial 4.5Ω -30 → +50% - 21mm 15mm 20mm 21 x 15 x 20mm Ferrite 10kHz 12.5mm B82731M
RS Stock No. 638-7785
Mfr. Part No.22R104C
PHP30.356
Each (In a Pack of 10)
units
100 μH 670mA Radial 390mΩ ±10% - 7.7mm - 10.5mm - - 7MHz 3mm 2200R