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. 219-3429
Mfr. Part No.RN222-4-02-3M3
BrandSchaffner
HK$23.72
Each
units
3.3 mH 4A Radial 45mΩ -30 → +50% - 31.3mm 18.3mm 29.6mm 31.3 x 18.3 x 29.6mm - - 12.5mm RN
RS Stock No. 170-5030
Mfr. Part No.RN222-4-02-3M3
BrandSchaffner
HK$13.115
Each (In a Box of 300)
units
3.3 mH 4A Radial 45mΩ -30 → +50% - 31.3mm 18.3mm 29.6mm 31.3 x 18.3 x 29.6mm - - 12.5mm RN
RS Stock No. 170-5091
Mfr. Part No.RD5132-6-5M0
BrandSchaffner
HK$118.808
Each (In a Box of 105)
units
5 mH 6A Lead Wire 38mΩ -30 → +50% 50.5mm - - 35.5mm 50.5 (Dia.) x 35.5mm - - - RD
RS Stock No. 465-6174
Mfr. Part No.RD5132-6-5M0
BrandSchaffner
HK$124.44
Each
units
5 mH 6A Lead Wire 38mΩ -30 → +50% 50.5mm - - 35.5mm 50.5 (Dia.) x 35.5mm - - - RD
RS Stock No. 170-5171
Mfr. Part No.RB6132-36-0M4
BrandSchaffner
HK$160.855
Each (In a Box of 32)
units
420 μH 36A Radial 1.4mΩ -30 → +50% - 67.9mm 66.9mm 52mm 67.9 x 66.9 x 52mm - 400Hz 5.08mm RB
RS Stock No. 883-9225
Mfr. Part No.RI406PC
BrandSchaffner
HK$192.667
Each (In a Pack of 300)
units
1.2 mH 6A Lead Wire, Through Hole 53mΩ - - 28.5mm 28.5mm 21.5mm 28.5 x 28.5 x 21.5mm - - 10 mm, 20 mm RI
RS Stock No. 170-5174
Mfr. Part No.RB8532-36-0M8
BrandSchaffner
HK$225.457
Each (In a Box of 16)
units
830 μH 36A Radial 2.3mΩ -30 → +50% - 63mm 63mm 82mm 63 x 63 x 82mm - 400Hz 5.08mm RB
RS Stock No. 883-9134
Mfr. Part No.RD6137-16-1M5
BrandSchaffner
HK$138.195
Each (In a Pack of 14)
units
1.5 mH 16A Lead Wire, Through Hole 8.3mΩ -30 → +50% 60mm - - 35mm 60 (Dia.) x 35mm - - - RD
RS Stock No. 883-9159
Mfr. Part No.RD7127-36-1M0
BrandSchaffner
HK$191.168
Each (In a Pack of 10)
units
1 mH 36A Lead Wire, Through Hole 3.3mΩ -30 → +50% 70mm - - 40mm 70 (Dia.) x 40mm - - - RD
RS Stock No. 170-4964
Mfr. Part No.RN114-1.2-02
BrandSchaffner
HK$14.915
Each (In a Box of 500)
units
10 mH 1.2A - 200mΩ -30 → +50% - 22.8mm 21.8mm 13.5mm 22.8 x 21.8 x 13.5mm - - 20.1mm RN
RS Stock No. 170-5019
Mfr. Part No.RD8137-36-1M5
BrandSchaffner
HK$332.185
Each (In a Box of 24)
units
1.5 mH 36A Lead Wire 3.65mΩ -30 → +50% 80.5mm - - 50.5mm 80.5 (Dia.) x 50.5mm - - - RD
RS Stock No. 465-6168
Mfr. Part No.RD5122-16-2M0
BrandSchaffner
HK$115.55
Each
units
2 mH 16A Lead Wire 9.5mΩ -30 → +50% 50.5mm - - 35.5mm 50.5 (Dia.) x 35.5mm - - - RD
RS Stock No. 883-9229
Mfr. Part No.RI415
BrandSchaffner
HK$227.311
Each (In a Pack of 77)
units
300 μH 15A Lead Wire, Through Hole 8mΩ - - 49mm 35mm 34mm 49 x 35 x 34mm - - 30 mm, 36 mm RI
RS Stock No. 883-9137
Mfr. Part No.RD6127-6-15M0
BrandSchaffner
HK$127.197
Each (In a Pack of 14)
units
15 mH 6A Lead Wire, Through Hole 66.65mΩ -30 → +50% 50mm - - 35mm 50 (Dia.) x 35mm - - - RD
RS Stock No. 162-0580
Mfr. Part No.RB6522-50-0M3
BrandSchaffner
HK$138.463
Each (In a Box of 60)
units
250 μH 50A Radial 900µΩ -30 → +50% - 50mm 43.4mm 58mm 50 x 43.4 x 58mm - 400Hz 5.08mm RB
RS Stock No. 173-5993
Mfr. Part No.RN114-1.2-02
BrandSchaffner
HK$17.44
Each
units
- - - - - - - - - - - - - -
RS Stock No. 219-3205
Mfr. Part No.RS622-4-02
BrandSchaffner
HK$99.10
Each
units
15 μH 4A Radial 30mΩ - - 31.3mm 18.3mm 29.6mm 31.3 x 18.3 x 29.6mm - 13MHz 12.5mm RS
RS Stock No. 769-0562
Mfr. Part No.RB6122-25-0M6
BrandSchaffner
HK$105.76
Each
units
640 μH 25A Radial 2.7mΩ -30 → +50% - 53.3mm 51.34mm 41.5mm 53.3 x 51.34 x 41.5mm - 400Hz 15.24mm RB
RS Stock No. 219-3233
Mfr. Part No.RN102-0,3-02
BrandSchaffner
HK$17.45
Each
units
- - - - - - - - - - - - - -
RS Stock No. 769-0574
Mfr. Part No.RB6122-50-0M3
BrandSchaffner
HK$138.82
Each
units
250 μH 50A Radial 900µΩ -30 → +50% - 61mm 57.8mm 38mm 61 x 57.8 x 38mm - 400Hz 5.08mm RB