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. 489-0318
Mfr. Part No.744824101
TWD135.00
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. 228-141
BrandRS PRO
TWD64.00
Each
units
10 μH 750mA Axial 95mΩ - 3.3mm 9.14mm - - 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309
RS Stock No. 172-7062
Mfr. Part No.RLB0914-101KL
BrandBourns
TWD6.80
Each (In a Bag of 200)
units
100 μH 1A Radial - ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 3.5MHz 5mm RLB
RS Stock No. 811-8786
Mfr. Part No.RLB0914-101KL
BrandBourns
TWD6.90
Each (In a Bag of 10)
units
100 μH 1A Radial 280mΩ ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 3.5MHz 5mm RLB
RS Stock No. 172-8373
Mfr. Part No.RLB0912-3R3ML
BrandBourns
TWD6.80
Each (In a Bag of 200)
units
3.3 μH 3.6A Radial - ±20% 8.7mm - - 10mm 8.7 (Dia.) x 10mm Ferrite 50MHz 5mm RLB
RS Stock No. 871-1468
Mfr. Part No.B82730U3451A020
BrandEPCOS
TWD39.30
Each (In a Bag of 3)
units
10 mH 450mA Radial 1.75Ω -30 → +50% - 16.5mm 11mm 16.5mm 16.5 x 11 x 16.5mm Ferrite 10kHz 8mm B82730U
RS Stock No. 800-4350
Mfr. Part No.11R104C
TWD8.80
Each (In a Bag of 5)
units
100 μH 350mA - 1.1Ω ±10% 5mm - - 7.5mm 5 (Dia.) x 7.5mm - 1kHz 2mm 1100R
RS Stock No. 736-2131
Mfr. Part No.7448229004
TWD201.00
Each
units
350 μH 8.5A Through Hole 5.5mΩ ±30% - 18.5mm 14.5mm 22mm 18.5 x 14.5 x 22mm - - 5mm WE-CMB HC
RS Stock No. 110-1296
Mfr. Part No.ELC08D100E
BrandPanasonic
TWD10.20
Each (In a Bag of 1000)
units
10 μH 2.8A Radial 22mΩ ±20% - 10mm 8.5mm 13mm 10 x 8.5 x 13mm Ferrite - 5mm ELC08D
RS Stock No. 811-8884
Mfr. Part No.RLB0912-3R3ML
BrandBourns
TWD7.50
Each (In a Bag of 10)
units
3.3 μH 3.6A Radial 18mΩ ±20% 8.7mm - - 10mm 8.7 (Dia.) x 10mm Ferrite 50MHz 5mm RLB
RS Stock No. 432-4388
Mfr. Part No.744772100
TWD27.30
Each (In a Pack of 10)
units
10 μH 2.6A Radial 40mΩ ±20% 8.3mm - - 10mm 8.3 (Dia.) x 10mm Ferrite - 5mm WE-TI
RS Stock No. 170-9318
Mfr. Part No.11R104C
TWD8.80
Each (On a Reel of 200)
units
100 μH 350mA - 1.1Ω ±10% 5mm - - 7.5mm 5 (Dia.) x 7.5mm - 1kHz 2mm 1100R
RS Stock No. 163-3793
Mfr. Part No.7448229004
TWD134.60
Each (In a Box of 90)
units
350 μH 8.5A Through Hole 5.5mΩ ±30% - 18.5mm 14.5mm 22mm 18.5 x 14.5 x 22mm - - 5mm WE-CMB HC
RS Stock No. 233-5134
Mfr. Part No.ELC08D100E
BrandPanasonic
TWD18.80
Each (In a Pack of 5)
units
10 μH 2.8A Radial 22mΩ ±20% - 10mm 8.5mm 13mm 10 x 8.5 x 13mm Ferrite - 5mm ELC08D
RS Stock No. 167-0257
Mfr. Part No.B82730U3451A020
BrandEPCOS
TWD50.20
Each (In a Box of 728)
units
10 mH 450mA Radial 1.75Ω -30 → +50% - 16.5mm 11mm 16.5mm 16.5 x 11 x 16.5mm Ferrite 10kHz 8mm B82730U
RS Stock No. 163-3339
Mfr. Part No.744772100
TWD25.50
Each (In a Tray of 140)
units
10 μH 2.6A Radial 40mΩ ±20% 8.3mm - - 10mm 8.3 (Dia.) x 10mm Ferrite - 5mm WE-TI
RS Stock No. 106-7756
Mfr. Part No.22R105C
TWD18.30
Each (In a Bag of 100)
units
1 mH 170mA Radial 3.63Ω ±10% - 7.7mm - 10.5mm - - 2.1MHz 3mm 2200R
RS Stock No. 163-3347
Mfr. Part No.744772470
TWD25.50
Each (In a Tray of 140)
units
47 μH 1.3A Radial 100mΩ ±10% 8.3mm - - 10mm 8.3 (Dia.) x 10mm Ferrite - 5mm WE-TI
RS Stock No. 489-0289
Mfr. Part No.744823333
TWD144.00
Each
units
3.3 mH 2.5A Radial 60mΩ ±30% - 23.5mm 13.5mm 28mm 23.5 x 13.5 x 28mm - - 7.5mm WE-CMB HC
RS Stock No. 106-7739
Mfr. Part No.1410478C
TWD135.20
Each (In a Box of 15)
units
100 μH 7.8A Radial 40mΩ ±10% - 32.4mm 29.8mm 21.8mm 32.4 x 29.8 x 21.8mm - 3.3MHz 29.3mm 1400