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. 893-4207
Mfr. Part No.Z14E
BrandOhmite
MYR51.74
Each
units
44 μH 680mA Through Hole 2.6Ω ±10% 11.11mm - - 50.6mm 11.11 (Dia.) x 50.6 Lmm - 23MHz - Z
RS Stock No. 892-8212
Mfr. Part No.Z144E
BrandOhmite
MYR22.73
Each
units
1.8 μH 1.1A Through Hole 330mΩ ±10% 4.76mm - - 19.05mm 4.76 (Dia.) x 19.05 Lmm - 168MHz - Z
RS Stock No. 893-4201
Mfr. Part No.Z50E
BrandOhmite
MYR20.90
Each
units
7 μH 1A Through Hole 980mΩ ±10% 7.14mm - - 25.4mm 7.14 (Dia.) x 25.4 Lmm - 79MHz - Z