Leaded Inductors

Leaded inductors are components with through hole features and leads attached concentrically to the opposite ends of the inductor cores. They 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.

What are leaded inductors used for?

They are used to suppress asymmetrical interferences in low-voltage and high-voltage circuits.

With low voltages, they act as continuous circuits to keep the current flowing if there are interferences. With high voltages, they are able to prevent current from flowing due to their high resistance, thus are used to protect the circuit from voltage spikes.

Types of leaded inductors

Leaded inductors come in two main categories:

  • 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. 288-238
Mfr. Part No.SF1123
$6.46
Each
units
2.4 mH - Flying Leads 400mΩ ±20% 32mm - 13.5mm - 32 (Dia.) x 13.5mm Composite Iron Powder - - SF
RS Stock No. 122-3311
Mfr. Part No.SMV80
$7.03
Each
units
90 μH 8A Radial 25mΩ - - 32mm 17mm 30mm 32 x 17 x 30mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm SMV
RS Stock No. 288-159
Mfr. Part No.CMV60
$9.30
Each
units
1.4 mH 6A Radial 19mΩ - - 34mm 17.4mm 31mm 34 x 17.4 x 31mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm CMV
RS Stock No. 122-3298
Mfr. Part No.SMV60
$7.72
Each
units
120 μH 6A Radial 40mΩ - - 32mm 17mm 30mm 32 x 17 x 30mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm SMV
RS Stock No. 288-165
Mfr. Part No.CMV80
$8.80
Each
units
740 μH 8A Radial 9.6mΩ - - 34mm 17.4mm 31mm 34 x 17.4 x 31mm Ferrite 440Hz 7.62 mm, 10.16 mm, 25.4 mm CMV
RS Stock No. 288-143
Mfr. Part No.CMV40
$8.39
Each
units
2.4 mH 4A Radial 40mΩ - - 34mm 17.4mm 31mm 34 x 17.4 x 31mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm CMV
RS Stock No. 188-9040
Mfr. Part No.C210
$26.62
Each
units
2 mH 10A Lead Wire - - - 50mm 50mm 30mm 50 x 50 x 30mm - - - C200
RS Stock No. 288-222
Mfr. Part No.SF1122
$5.65
Each
units
2.9 mH - Flying Leads 500mΩ ±20% 32mm - 13mm - 32 (Dia.) x 13mm Composite Iron Powder - - SF
RS Stock No. 188-9107
Mfr. Part No.SMV30
$6.46
Each
units
260 μH 3A Radial 140mΩ - - 32mm 17mm 30mm 32 x 17 x 30mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm SMV
RS Stock No. 288-216
Mfr. Part No.SF1121
$8.01
Each
units
4 mH - Lead Wire 1.9Ω ±20% 25mm - 10mm - 25 (Dia.) x 10mm Composite Iron Powder - - SF
RS Stock No. 122-3282
Mfr. Part No.SMV40
$6.16
Each
units
210 μH 4A Radial 100mΩ - - 32mm 17mm 30mm 32 x 17 x 30mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm SMV
RS Stock No. 288-137
Mfr. Part No.CMV20
$7.84
Each
units
7.5 mH 2A Radial 160mΩ - - 34mm 17.4mm 31mm 34 x 17.4 x 31mm Ferrite 440Hz 7.62 mm, 10.16 mm, 25.4 mm CMV
RS Stock No. 188-9056
Mfr. Part No.C215
$27.98
Each
units
1 mH 15A Radial - - - 50mm 50mm 30mm 50 x 50 x 30mm - - - C200
RS Stock No. 188-9078
Mfr. Part No.CMV10
$6.55
Each
units
18 mH 1A Radial 640mΩ - - 34mm 17.4mm 31mm 34 x 17.4 x 31mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm CMV
RS Stock No. 188-9090
Mfr. Part No.CMV30
$6.48
Each
units
3.2 mH 3A Radial 71mΩ - - 34mm 17.4mm 31mm 34 x 17.4 x 31mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm CMV
RS Stock No. 122-3276
Mfr. Part No.SMV20
$6.46
Each
units
500 μH 2A Radial 370mΩ - - 32mm 17mm 30mm 32 x 17 x 30mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm SMV
RS Stock No. 288-200
Mfr. Part No.SF1120
$5.00
Each
units
4 mH - Flying Leads 1.8Ω ±20% 20mm - 9.5mm - 20 (Dia.) x 9.5mm Composite Iron Powder - - SF