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. 233-5291
Mfr. Part No.ELC08D102E
BrandPanasonic
HK$3.112
Each (In a Pack of 5)
units
1 mH 290mA Radial 1.3Ω ±10% - 10mm 8.5mm 13mm 10 x 8.5 x 13mm Ferrite - 5mm ELC08D
RS Stock No. 110-1309
Mfr. Part No.ELC08D102E
BrandPanasonic
HK$2.511
Each (In a Bag of 1000)
units
1 mH 290mA Radial 1.3Ω ±10% - 10mm 8.5mm 13mm 10 x 8.5 x 13mm Ferrite - 5mm ELC08D
RS Stock No. 228-573
Mfr. Part No.1410604C
HK$21.22
Each
units
10 mH 400mA Radial 4.34Ω ±10% - 26.6mm 25.9mm 15.5mm 26.6 x 25.9 x 15.5mm - 400kHz 22.9mm 1400
RS Stock No. 489-0318
Mfr. Part No.744824101
HK$34.72
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. 715-6787
Mfr. Part No.1430450C
HK$34.44
Each
units
300 μH 5A Radial 80mΩ ±10% - 33.3mm 31.3mm 23.3mm 33.3 x 31.3 x 23.3mm - 1.7MHz 29mm 1400
RS Stock No. 191-1175
Mfr. Part No.B82144A2105J000
BrandEPCOS
HK$4.696
Each (In a Pack of 5)
units
1 mH 200mA Axial 3.8Ω ±5% 5.2mm 14.8mm - - 5.2 (Dia.) x 14.8mm Ferrite 1.2MHz - LBC
RS Stock No. 228-163
BrandRS PRO
HK$11.81
Each
units
47 μH 760mA Axial - - 3.3mm 9.14mm - - 3.3 (Dia.) x 9.14mm Ferrite - - APIE0309
RS Stock No. 167-8257
Mfr. Part No.B82144A2105J000
BrandEPCOS
HK$2.26
Each (On a Reel of 1500)
units
1 mH 200mA Axial 3.8Ω ±5% 5.2mm 14.8mm - - 5.2 (Dia.) x 14.8mm Ferrite 1.2MHz - LBC
RS Stock No. 163-3398
Mfr. Part No.744824101
HK$43.153
Each (In a Box of 25)
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. 167-8360
Mfr. Part No.B78108S1104J000
BrandEPCOS
HK$1.146
Each (On a Reel of 5000)
units
100 μH 370mA Axial 1.7Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 5MHz - BC
RS Stock No. 172-7286
Mfr. Part No.2309-V-RC
BrandBourns
HK$29.79
Each (In a Bag of 50)
units
47 μH 10.7A Radial - ±15% 32.51mm - 0.65in - 32.512 (Dia.) x 16.51mm - - 13.462mm 2300
RS Stock No. 219-3429
Mfr. Part No.RN222-4-02-3M3
BrandSchaffner
HK$22.95
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. 106-7781
Mfr. Part No.1430450C
HK$32.831
Each (In a Box of 15)
units
300 μH 5A Radial 80mΩ ±10% - 33.3mm 31.3mm 23.3mm 33.3 x 31.3 x 23.3mm - 1.7MHz 29mm 1400
RS Stock No. 162-0202
Mfr. Part No.B78108S1222K000
BrandEPCOS
HK$0.91
Each (On a Reel of 5000)
units
2.2 μH 1A Axial 250mΩ ±10% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 140MHz - BC
RS Stock No. 736-0958
Mfr. Part No.2301-V-RC
BrandBourns
HK$32.45
Each
units
10 μH 20A Radial 5mΩ ±15% 32.51mm - 0.65in - 32.512 (Dia.) x 16.51mm - - 14.224mm 2300
RS Stock No. 191-0560
Mfr. Part No.B78108S1473J000
BrandEPCOS
HK$2.529
Each (In a Pack of 10)
units
47 μH 450mA Axial 1.1Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 7.5MHz - BC
RS Stock No. 124-1527
Mfr. Part No.7447021
HK$12.974
Each (In a Pack of 5)
units
100 μH 2.5A Through Hole 80mΩ ±20% 15.5mm - - 8mm 15.5 (Dia.) x 8mm Ferrite, Iron Powder - 7mm WE-FI
RS Stock No. 163-3296
Mfr. Part No.7447033
HK$19.607
Each (In a Bag of 300)
units
68 μH 2.8A Lead Wire 55mΩ ±20% 14mm - 8mm - 14 (Dia.) x 8mm Composite Iron Powder - 6mm WE-FI
RS Stock No. 191-0425
Mfr. Part No.B78108S1222K000
BrandEPCOS
HK$1.90
Each (In a Pack of 10)
units
2.2 μH 1A Axial 250mΩ ±10% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 140MHz - BC
RS Stock No. 172-7238
Mfr. Part No.5800-100-RC
BrandBourns
HK$5.68
Each (In a Bag of 864)
units
10 μH 1.28A Axial - ±10% 6.99mm 17.78mm - - 6.985 (Dia.) x 17.78mm Ferrite - - 5800
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