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. 751-1847
Mfr. Part No.7G17B-330M
$6.46
Each
units
33 μH 7.5A Radial 10.7mΩ ±20% - 17.5mm 15mm 19.3mm 17.5 x 15 x 19.3mm - - 8.5 mm, 12.5 mm 7G17B
RS Stock No. 811-8780
Mfr. Part No.RLB0914-331KL
BrandBourns
$0.428
Each (In a Bag of 10)
units
330 μH 600mA Radial 760mΩ ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 2MHz 5mm RLB
RS Stock No. 213-1881
Mfr. Part No.B82111E0000C022
BrandEPCOS
$2.58
Each
units
22 μH 3A Axial 70Ω - 7mm 27.4mm - - 7 (Dia.) x 27.4mm Ferrite 110MHz - B82111-E
RS Stock No. 167-8219
Mfr. Part No.B82111E0000C022
BrandEPCOS
$1.36
Each (On a Reel of 1000)
units
22 μH 3A Axial 70Ω - 7mm 27.4mm - - 7 (Dia.) x 27.4mm Ferrite 110MHz - B82111-E
RS Stock No. 124-1530
Mfr. Part No.7447060
$3.68
Each (In a Pack of 5)
units
300 μH 2.5A Through Hole 150mΩ ±20% 21mm - - 11mm 21 (Dia.) x 11mm Ferrite, Iron Powder - 9mm WE-FI
RS Stock No. 880-7161
Mfr. Part No.B82133A5302M000
BrandEPCOS
$2.31
Each (In a Bag of 5)
units
10 μH 3A Axial 77mΩ ±20% 7.5mm 25mm - - 7.5 (Dia.) x 25mm Carbonyl Iron 69MHz 27.5mm VHF
RS Stock No. 233-5437
Mfr. Part No.ELC18B681L
BrandPanasonic
$4.08
Each
units
680 μH 1.4A Radial 260mΩ ±10% - 20mm 18mm 27mm 20 x 18 x 27mm Ferrite - 7.5mm ELC18B
RS Stock No. 110-1319
Mfr. Part No.ELC18B681L
BrandPanasonic
$1.88
Each (In a Bag of 500)
units
680 μH 1.4A Radial 260mΩ ±10% - 20mm 18mm 27mm 20 x 18 x 27mm Ferrite - 7.5mm ELC18B
RS Stock No. 166-0225
Mfr. Part No.B82133A5302M000
BrandEPCOS
$0.927
Each (On a Reel of 1000)
units
10 μH 3A Axial 77mΩ ±20% 7.5mm 25mm - - 7.5 (Dia.) x 25mm Carbonyl Iron 69MHz 27.5mm VHF
RS Stock No. 228-618
Mfr. Part No.1447440C
$6.18
Each
units
470 μH 4A Radial 125mΩ ±10% - 31.7mm 29.8mm 21.8mm 31.7 x 29.8 x 21.8mm - 1.4MHz 29mm 1400
RS Stock No. 715-7175
Mfr. Part No.15104C
$2.66
Each
units
100 μH 2.62A Radial 110mΩ ±10% 16.8mm - - 21.3mm 16.8 (Dia.) x 21.3mm - 3MHz 13.8mm 1500
RS Stock No. 163-3723
Mfr. Part No.7447036
$2.781
Each (In a Bag of 300)
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. 617-1316
Mfr. Part No.7447036
$4.82
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. 751-1844
Mfr. Part No.7G17B-220M
$6.46
Each
units
22 μH 13A Radial 10.7mΩ ±20% - 17.5mm 15mm 19.3mm 17.5 x 15 x 19.3mm - - 8.5 mm, 12.5 mm 7G17B
RS Stock No. 106-7946
Mfr. Part No.13R106C
$0.826
Each (In a Box of 200)
units
10 mH 85mA - 23.8Ω ±10% 9.5mm - - 13.5mm 9.5 (Dia.) x 13.5mm - 1kHz 5mm 1300R
RS Stock No. 106-8887
Mfr. Part No.51105C
$3.55
Each (In a Tray of 60)
units
1 mH 3.3A Radial 38mΩ - - 21.75mm 10mm 24mm 21.75 x 10 x 24mm - - 12.7mm 5100
RS Stock No. 715-6769
Mfr. Part No.1410460C
$4.01
Each
units
100 μH 6A Radial 33mΩ ±10% - 28.3mm 25.9mm 20mm 28.3 x 25.9 x 20mm - 3.9MHz 23.8mm 1400
RS Stock No. 106-7776
Mfr. Part No.1410460C
$3.91
Each (In a Box of 25)
units
100 μH 6A Radial 33mΩ ±10% - 28.3mm 25.9mm 20mm 28.3 x 25.9 x 20mm - 3.9MHz 23.8mm 1400
RS Stock No. 715-7103
Mfr. Part No.51105C
$4.20
Each
units
1 mH 3.3A Radial 38mΩ - - 21.75mm 10mm 24mm 21.75 x 10 x 24mm - - 12.7mm 5100
RS Stock No. 751-1762
Mfr. Part No.7G14A-220M
$2.457
Each (In a Pack of 10)
units
22 μH 7A Radial 10mΩ ±20% - 14mm 9.6mm 16mm 14 x 9.6 x 16mm - - 9.2mm 7G14A
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