Leaded Inductors

Leaded inductors are components that 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 as opposed to an electric field, which is stored by a capacitor. These inductors can found in several different shapes, including radial, axial and through-hole components and leads attached concentrically to the opposite ends of the inductor cores or as linear components. At RS Components, we have a varied range of leaded inductors, including axial, radial, through-hole and panel-mount inductors, with products from brands such as Bourns, EPCOS, Murata Power Solutions, Panasonic, Wurth Elektronik and our own RS PRO brand.

What are leaded inductors used for?

Leaded inductors are used to suppress asymmetrical interferences in low-voltage and high-voltage circuits. They typically have ferrite cores, however it is possible to find leaded inductors with cores made of other materials, such as nano crystalline or iron. With low or DC voltages, they act as continuous circuits to keep the current flowing if there are interferences but otherwise have no effect on the signal. With high voltage applications, they are able to prevent the current from flowing due to their high resistance, thus are used to protect the circuit from voltage spikes and prevent damages.

Types of leaded inductors

Leaded inductors come in two main categories, VHF-choke and RF-choke:

  • 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庫存編號 106-7738
製造零件編號1410604C
HK$21.924
個 (以毎盒:25)
單位
10 mH 400mA Radial 4340mΩ ±10% 24.4mm 26.6mm 25.9mm 15.5mm 24.4 (Dia.) x 15.5mm - 0.4MHz 22.9mm 1400
RS庫存編號 489-0318
製造零件編號744824101
HK$49.06
單位
1 mH 10A Radial 7mΩ ±30% - 27.5mm 18.5mm 33mm 27.5 x 18.5 x 33mm - - 10mm WE-CMB
RS庫存編號 736-0974
製造零件編號2309-V-RC
BrandBourns
HK$34.20
單位
47 μH 10.7A Radial 16mΩ ±15% 32.51mm - 0.65in 16.51mm 32.512 (Dia.) x 16.51mm - - 13.462mm 2300
RS庫存編號 167-8257
製造零件編號B82144A2105J000
BrandEPCOS
HK$2.406
個 (在毎卷:1500)
單位
1 mH 200mA Axial 3.8Ω ±5% 5.2mm 14.8mm - - 5.2 (Dia.) x 14.8mm Ferrite 1.2MHz - LBC
RS庫存編號 172-7286
製造零件編號2309-V-RC
BrandBourns
HK$27.676
個 (以毎袋:50)
單位
47 μH 10.7A Radial 16mΩ ±15% 32.51mm - 16.51mm 16.51mm 32.512 (Dia.) x 16.51mm - - 13.462mm 2300
RS庫存編號 163-3398
製造零件編號744824101
HK$48.342
個 (以毎盒:25)
單位
1 mH 10A Radial 7mΩ ±30% - 27.5mm 18.5mm 33mm 27.5 x 18.5 x 33mm - - 10mm WE-CMB
RS庫存編號 124-1522
製造零件編號7447071
HK$36.56
/個 (每包:2個)
單位
470 μH 3A Through Hole 110mΩ ±20% 25mm - - 12mm 25 (Dia.) x 12mm Iron Powder - 11mm WE-FI
RS庫存編號 167-8357
製造零件編號B78108S1473J000
BrandEPCOS
HK$1.168
個 (在毎卷:5000)
單位
47 μH 450mA Axial 1.1Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 7.5MHz - BC
RS庫存編號 110-1296
製造零件編號ELC08D100E
BrandPanasonic
HK$3.226
個 (以毎袋:1000)
單位
10 μH 2.8A Radial 22mΩ ±20% 8mm 10mm 8.5mm 13mm 10 x 8.5 x 13mm Ferrite - 5mm ELC08D
RS庫存編號 715-6753
製造零件編號1447383C
HK$27.90
單位
47 μH 8.3A Radial 19mΩ ±10% - 28.5mm 25.9mm 20mm 28.5 x 25.9 x 20mm - 6MHz 23.9mm 1400
RS庫存編號 172-9914
製造零件編號2309-H-RC
BrandBourns
HK$27.226
個 (以毎袋:36)
單位
47 μH 10.7A Radial 16mΩ ±15% 32.51mm - 16.51mm 16.51mm 32.512 (Dia.) x 16.51mm - - 28.956mm 2300
RS庫存編號 489-0419
製造零件編號744825510
HK$59.84
單位
10 mH 5A Radial 55mΩ ±30% - 30.5mm 21mm 35mm 30.5 x 21 x 35mm - - 25mm WE-CMB HC
RS庫存編號 191-0560
製造零件編號B78108S1473J000
BrandEPCOS
HK$3.224
/個 (每包:10個)
單位
47 μH 450mA Axial 1.1Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 7.5MHz - BC
RS庫存編號 288-143
製造零件編號CMV40
HK$48.48
單位
2.4 mH 4A Radial 40mΩ - - 37.5mm 17.4mm 31mm 32 x 12mm Ferrite - 27.8mm CMV
RS庫存編號 736-1015
製造零件編號5800-100-RC
BrandBourns
HK$12.222
個 (以毎袋:5)
單位
10 μH 1.28A Axial 33mΩ ±10% 6.985mm 17.78mm - - 6.985 (Dia.) x 17.78mm Ferrite - - 5800
RS庫存編號 228-135
BrandRS PRO
HK$13.30
單位
4.7 μH 1.7A Axial 68mΩ ±10% 3.3mm 9.14mm - 9.14mm 3.3 (Dia.) x 9.14mm Ferrite 95MHz - APIE0309
RS庫存編號 871-1519
製造零件編號B82731M2132A030
BrandEPCOS
HK$27.133
個 (以毎袋:3)
單位
6.8 mH 1.3A Radial 280mΩ -30 → +50% - 21mm 15mm 20mm 21 x 15 x 20mm Ferrite 10kHz 12.5mm B82731M
RS庫存編號 228-416
製造零件編號1410454C
HK$26.39
單位
100 μH 5.4A Radial 46mΩ ±10% 26.4mm 24mm 24.4mm 14mm 26.4 x 24.4 x 14mm - 4.6MHz 23.6mm 1400
RS庫存編號 191-0425
製造零件編號B78108S1222K000
BrandEPCOS
HK$3.462
/個 (每包:10個)
單位
2.2 μH 1A Axial 250mΩ ±10% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 140MHz - BC
RS庫存編號 106-7771
製造零件編號1447383C
HK$23.006
個 (以毎盒:25)
單位
47 μH 8.3A Radial 19mΩ ±15% 24.4mm 28.5mm 25.9mm 20mm 24.4 (Dia.) x 20mm - 6MHz 23.9mm 1400