Wire-Wound Surface Mount Inductors

Wire wound surface mount inductors are passive circuit components, meaning they require an external power source. They have a core made of a magnetic metal like iron with wire wound around it. Energy is stored in a magnetic field when an electrical current flows through the coiled wire which has thick insulation to make the inductors suitable for use with larger currents.


What are wire wound surface mount inductors used for?

They are typically found in car audio and electronic control units (ECUs) because they can block or filter radio frequencies. Unwanted radio frequencies can interfere with audio sound quality and disrupt electrical circuits. These inductors are also used in electronic equipment used in communication infrastructures and mobile base stations.

This ability to minimise interference makes them ideal for use with DC/DC converters in power distribution systems too.

Types of wire wound surface mount inductors

Some inductors have added magnetic shielding which blocks unwanted magnetism that can interfere with the circuit. Some wire wound inductors are wound with special techniques that enhance performance and reduce the unit size to save space in circuit boards.


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Omschrijving Prijs Inductance Maximum DC Current Package/Case Length Automotive Standard Depth Height Diameter Dimensions Shielded Tolerance Maximum DC Resistance Series Core Material
RS-stocknr. 749-6414
Fabrikantnummer60B104C
€ 2,54
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100 μH 7.5A - 27mm - 19.5mm 20mm - 27 x 19.5 x 20mm - ±15% 25mΩ 6000B -
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FabrikantWurth Elektronik
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3.3 μH 3.6A 4020 4.1mm - 4.1mm 2.1mm - 4.1 x 4.1 x 2.1mm Yes - 48mΩ WE-MAPI Magnetic Iron Alloy
RS-stocknr. 124-1882
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22 μH 110mA 1210 (3225M) 2.9mm - 2.5mm 2.2mm - 2.9 x 2.5 x 2.2mm Yes - 3.7Ω WE-GF Ferrite
RS-stocknr. 172-7080
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€ 0,178
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27 μH 710mA SMD 4.5mm - 4mm 3.2mm 4.5mm 4.5 Dia. x 3.2mm - ±10% 520mΩ SDR0403 Ferrite DR
RS-stocknr. 743-5131
FabrikantnummerSRN6045-470M
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€ 0,345
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47 μH 1.3A 6045 6mm - 6mm 4.5mm - 6 x 6 x 4.5mm Yes ±20% 257mΩ SRN6045 Ferrite
RS-stocknr. 172-9537
FabrikantnummerCM453232-470KL
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€ 0,129
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47 μH 140mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm - ±10% CM45 Ferrite
RS-stocknr. 163-4787
Fabrikantnummer74404042150
FabrikantWurth Elektronik
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15 μH 850mA 4018 4mm - 4mm 1.8mm - 4 x 4 x 1.8mm Yes ±20% 210mΩ WE-LQS -
RS-stocknr. 729-6520
FabrikantnummerSDR1005-221KL
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220 μH 800mA 1005 12.7mm - 10mm 5mm - 12.7 x 10 x 5mm - ±10% 780mΩ SDR1005 Ferrite
RS-stocknr. 743-5144
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€ 0,396
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100 μH 800mA 6045 6mm - 6mm 4.5mm - 6 x 6 x 4.5mm Yes ±20% 494mΩ SRN6045 Ferrite
RS-stocknr. 692-4867
FabrikantnummerSRU5028-100Y
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€ 0,50
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10 μH 1.8A - 5.2mm - 5.2mm 2.8mm - 5.2 x 5.2 x 2.8mm Yes ±30% 63mΩ SRU5028 Ferrite
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Fabrikantnummer7447714330
FabrikantWurth Elektronik
€ 2,22
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33 μH 2.5A - 10mm - 10mm 5mm - 10 x 10 x 5mm Yes ±20% 79mΩ WE-PD -
RS-stocknr. 725-4923
FabrikantnummerLQG15HS27NJ02D
FabrikantMurata
€ 0,052
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27 nH 300mA 0402 (1005M) 1mm - 0.5mm 0.5mm - 1 x 0.5 x 0.5mm - ±5% 460mΩ LQG15HS -
RS-stocknr. 172-8567
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€ 0,455
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50 μH 800mA 0905 9.2mm - 6mm 5mm - 9.2 x 6 x 5mm - ±30% - SRF0905 Ferrite
RS-stocknr. 169-3448
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€ 1,129
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FabrikantnummerSRU5028-100Y
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€ 0,259
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10 μH 1.8A - 5.2mm - 5.2mm 2.8mm - 5.2 x 5.2 x 2.8mm Yes ±30% 63mΩ SRU5028 Ferrite
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€ 0,333
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€ 0,13
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- 3A 1206 (3216M) 3.2mm - 1.6mm 1.1mm - 3.2 x 1.6 x 1.1mm Yes - 30mΩ WE-CBF Ferrite
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€ 0,284
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