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 Stock No. 770-0978
Mfr. Part No.DR125-470-R
HK$17.016
Each (In a Bag of 5)
units
47 μH 3.24A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 74mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9626
Mfr. Part No.DR125-470-R
HK$10.997
Each (On a Reel of 600)
units
47 μH 3.24A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 74mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-1003
Mfr. Part No.DR127-101-R
HK$17.706
Each (In a Bag of 5)
units
100 μH 3.64A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 163mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9688
Mfr. Part No.DRA127-100-R
HK$16.643
Each (On a Reel of 350)
units
10 μH 11.2A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 17mΩ DRA Ferrite
RS Stock No. 169-9630
Mfr. Part No.DR127-150-R
HK$7.966
Each (On a Reel of 350)
units
15 μH 9.66A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 24.7mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9631
Mfr. Part No.DR127-101-R
HK$7.966
Each (On a Reel of 350)
units
100 μH 3.64A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 163mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-0864
Mfr. Part No.DR1050-330-R
HK$18.664
Each (In a Bag of 5)
units
33 μH 2.5A 1050 10.3mm - 10.5mm 5mm - 10.3 x 10.5 x 5mm Yes ±30% 71.9mΩ DR1050 Ferrite
RS Stock No. 770-1735
Mfr. Part No.DRA127-100-R
HK$25.73
Each (In a Bag of 5)
units
10 μH 11.2A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 17mΩ DRA Ferrite
RS Stock No. 770-1094
Mfr. Part No.DR73-220-R
HK$10.146
Each (In a Bag of 5)
units
22 μH 1.67A 73 7.6mm - 7.6mm 3.55mm - 7.6 x 7.6 x 3.55mm Yes ±20% 107mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9650
Mfr. Part No.DR73-220-R
HK$5.196
Each (On a Reel of 1350)
units
22 μH 1.67A 73 7.6mm - 7.6mm 3.55mm - 7.6 x 7.6 x 3.55mm Yes ±20% 107mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-0325
Mfr. Part No.DRQ127-2R2-R
HK$25.04
Each (In a Bag of 5)
units
2.2 μH 25.5A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 16.1mΩ DRQ Ferrite
RS Stock No. 770-1000
Mfr. Part No.DR127-150-R
HK$17.706
Each (In a Bag of 5)
units
15 μH 9.66A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 24.7mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9616
Mfr. Part No.DR125-100-R
HK$10.997
Each (On a Reel of 600)
units
10 μH 7.17A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 18.9mΩ DR73/74/125/127 Ferrite
RS Stock No. 161-7633
Mfr. Part No.DRQ127-2R2-R
HK$16.179
Each (On a Reel of 350)
units
2.2 μH 25.5A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 16.1mΩ DRQ Ferrite
RS Stock No. 169-9605
Mfr. Part No.DR1050-330-R
HK$12.071
Each (On a Reel of 500)
units
33 μH 2.5A 1050 10.3mm - 10.5mm 5mm - 10.3 x 10.5 x 5mm Yes ±30% 71.9mΩ DR1050 Ferrite
RS Stock No. 770-0937
Mfr. Part No.DR125-100-R
HK$17.016
Each (In a Bag of 5)
units
10 μH 7.17A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 18.9mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-1826
Mfr. Part No.DRA73-150-R
HK$21.372
Each (In a Bag of 5)
units
15 μH 2A 73 7.6mm - 7.6mm 3.55mm - 7.6 x 7.6 x 3.55mm Yes ±20% 94mΩ DRA Ferrite
RS Stock No. 169-9672
Mfr. Part No.DR74-680-R
HK$6.639
Each (On a Reel of 1100)
units
68 μH 1.19A 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 265mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-1959
Mfr. Part No.DRA74-821-R
HK$9.45
Each (In a Bag of 5)
units
820 μH 327mA 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 3.63Ω DRA Ferrite
RS Stock No. 770-1832
Mfr. Part No.DRA73-1R5-R
HK$8.504
Each (In a Bag of 5)
units
1.5 μH 6.73A 73 7.6mm - 7.6mm 3.55mm - 7.6 x 7.6 x 3.55mm Yes ±20% 9.7mΩ DRA Ferrite