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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Description Price Inductance Maximum DC Current Package/Case Length Automotive Standard Depth Height Diameter Dimensions Shielded Tolerance Maximum DC Resistance Series Core Material
RS庫存編號 751-1737
製造零件編號7G09B-220M
HK$22.40
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22 μH 3.2A 7G09B 9mm - 10mm 10mm - 9 x 10 x 10mm Yes ±20% 52mΩ - -
RS庫存編號 751-1728
製造零件編號7G09B-150M
HK$21.28
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15 μH 4.1A 7G09B 9mm - 10mm 10mm - 9 x 10 x 10mm Yes ±20% 44mΩ - -
RS庫存編號 751-1721
製造零件編號7G09B-100M
HK$21.28
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10 μH 5A 7G09B 9mm - 10mm 10mm - 9 x 10 x 10mm Yes ±20% 22mΩ - -
RS庫存編號 751-1724
製造零件編號7G09B-120M
HK$23.52
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12 μH 4.3A 7G09B 9mm - 10mm 10mm - 9 x 10 x 10mm Yes ±20% 25mΩ - -
RS庫存編號 751-1964
製造零件編號DBE7210H-220M
HK$19.30
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22 μH 4.3A DBE7210H 10.5mm - 7.2mm 10.2mm - 10.5 x 7.2 x 10.2mm Yes ±20% 38mΩ - -