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 489-0201
製造零件編號744822301
HK$42.06
單位
1 mH 3A Radial 35mΩ ±30% - 17.5mm 13mm 22mm 17.5 x 13 x 22mm - - 7.7mm WE-CMB
RS庫存編號 163-3636
製造零件編號744151
HK$16.17
個 (以毎袋:100)
單位
48 μH 8.1A Lead Wire 25mΩ ±20% 30mm - 12mm - 30 (Dia.) x 12mm Ferrite - 10mm WE-SI
RS庫存編號 172-8357
製造零件編號RLB0914-100KL
BrandBourns
HK$1.974
個 (以毎袋:200)
單位
10 μH 2.7A Radial - ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 20MHz 5mm RLB
RS庫存編號 172-7062
製造零件編號RLB0914-101KL
BrandBourns
HK$2.027
個 (以毎袋:200)
單位
100 μH 1A Radial - ±10% 8.7mm - - 12mm 8.7 (Dia.) x 12mm Ferrite 3.5MHz 5mm RLB
RS庫存編號 860-4133
製造零件編號RL181S-104J-RC
BrandBourns
HK$7.077
/個 (每包:1000個)
單位
100 mH 9mA Radial 82Ω ±5% 10.5mm - - 14mm 10.5 (Dia.) x 14mm Ferrite 90kHz 5mm RL181S
RS庫存編號 715-6762
製造零件編號1447385C
HK$24.22
單位
47 μH 8.5A Radial 21mΩ ±10% - 28.3mm 25.9mm 15.5mm 28.3 x 25.9 x 15.5mm - 6.7MHz 23.8mm 1400
RS庫存編號 852-3630
製造零件編號IHA105EB
BrandVishay
HK$45.01
單位
1 mH 1.4A Axial 600mΩ ±10% 13.97mm - - 29.85mm 13.97 (Dia.) x 29.85mm Ferrite 1kHz - IHA
RS庫存編號 106-7919
製造零件編號15474C
HK$15.099
個 (以毎盒:40)
單位
470 μH 1.4A Radial 389mΩ ±10% 16.8mm - - 21.3mm 16.8 (Dia.) x 21.3mm - 1.3MHz 14.2mm 1500
RS庫存編號 122-3298
製造零件編號SMV60
HK$48.07
單位
120 μH 6A Radial 40mΩ - - 32mm 17mm 30mm 32 x 17 x 30mm Ferrite - 7.62 mm, 10.16 mm, 25.4 mm SMV
RS庫存編號 163-3722
製造零件編號7447016
HK$17.252
個 (以毎袋:200)
單位
29 μH 7.8A Lead Wire 15mΩ ±20% 18.5mm - 10.5mm - 18.5 (Dia.) x 10.5mm Composite Iron Powder - 8mm WE-FI
RS庫存編號 106-7774
製造零件編號1447385C
HK$21.924
個 (以毎盒:25)
單位
47 μH 8.5A Radial 21mΩ ±10% - 28.3mm 25.9mm 15.5mm 28.3 x 25.9 x 15.5mm - 6.7MHz 23.8mm 1400
RS庫存編號 675-5548
製造零件編號ELC16B680L
BrandPanasonic
HK$13.302
/個 (每包:5個)
單位
68 μH 3.2A Radial 57mΩ ±10% - 16mm - 23mm - Ferrite - 7.5mm ELC16B
RS庫存編號 850-7271
製造零件編號CTX100-5-52-R
HK$77.291
/個 (每包:32個)
單位
100 μH 8.2A Radial 27mΩ ±20% 37.8mm - - 16.8mm 37.8 (Dia.) x 16.8mm Iron - 13.6mm CTX
RS庫存編號 163-3299
製造零件編號7447076
HK$43.848
個 (以毎盒:30)
單位
150 μH 6.1A Lead Wire 45mΩ ±20% 27.5mm - 14mm - 27.5 (Dia.) x 14mm Composite Iron Powder - 11.5mm WE-FI
RS庫存編號 167-8363
製造零件編號B78108S1224J000
BrandEPCOS
HK$1.479
個 (在毎卷:5000)
單位
220 μH 250mA Axial 3.3Ω ±5% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 3.7MHz - BC
RS庫存編號 800-4378
製造零件編號13R104C
HK$5.572
個 (以毎袋:5)
單位
100 μH 1A - 240mΩ ±10% 9.5mm - - 13.5mm 9.5 (Dia.) x 13.5mm - 1kHz 5mm 1300R
RS庫存編號 167-8348
製造零件編號B78108S1332K000
BrandEPCOS
HK$1.111
個 (在毎卷:5000)
單位
3.3 μH 900mA Axial 290mΩ ±10% 4mm 11.5mm - - 4 (Dia.) x 11.5mm Ferrite 115MHz - BC
RS庫存編號 715-7184
製造零件編號15474C
HK$15.63
單位
470 μH 1.4A Radial 389mΩ ±10% 16.8mm - - 21.3mm 16.8 (Dia.) x 21.3mm - 1.3MHz 14.2mm 1500
RS庫存編號 228-444
製造零件編號1447423C
HK$26.05
單位
470 μH 2.3A Radial 222mΩ ±10% - 27.2mm 25.9mm 15.5mm 27.2 x 25.9 x 15.5mm - 2MHz 23.3mm 1400
RS庫存編號 172-8691
製造零件編號1130-330K-RC
BrandBourns
HK$42.683
個 (以毎袋:106)
單位
33 μH 13.5A Radial 17mΩ ±10% 27.94mm - - 21.3mm 27.94 (Dia.) x 21.34mm Ferrite Bobbin Core - 20.07mm 1130