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. 770-0827
Mfr. Part No.DR1050-100-R
SGD3.266
Each (In a Bag of 5)
units
10 μH 4.58A 1050 10.3mm - 10.5mm 5mm - 10.3 x 10.5 x 5mm Yes ±30% 22.5mΩ DR1050 Ferrite
RS Stock No. 169-9598
Mfr. Part No.DR1050-100-R
SGD1.452
Each (On a Reel of 500)
units
10 μH 4.58A 1050 10.3mm - 10.5mm 5mm - 10.3 x 10.5 x 5mm Yes ±30% 22.5mΩ DR1050 Ferrite
RS Stock No. 770-1132
Mfr. Part No.DR73-R33-R
SGD1.428
Each (In a Bag of 5)
units
330 nH 14.4A 73 7.6mm - 7.6mm 3.55mm - 7.6 x 7.6 x 3.55mm Yes ±20% 7.3mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9668
Mfr. Part No.DR74-330-R
SGD0.943
Each (On a Reel of 1100)
units
33 μH 1.73A 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 143mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9659
Mfr. Part No.DR73-R33-R
SGD0.763
Each (On a Reel of 1350)
units
330 nH 14.4A 73 7.6mm - 7.6mm 3.55mm - 7.6 x 7.6 x 3.55mm Yes ±20% 7.3mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-1167
Mfr. Part No.DR74-330-R
SGD1.386
Each (In a Bag of 5)
units
33 μH 1.73A 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 143mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-0833
Mfr. Part No.DR1050-150-R
SGD3.438
Each (In a Bag of 5)
units
15 μH 3.7A 1050 10.3mm - 10.5mm 5mm - 10.3 x 10.5 x 5mm Yes ±30% 32.5mΩ DR1050 Ferrite
RS Stock No. 770-1031
Mfr. Part No.DR127-330-R
SGD2.00
Each (In a Bag of 5)
units
33 μH 6.22A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 60mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9637
Mfr. Part No.DR127-330-R
SGD1.218
Each (On a Reel of 350)
units
33 μH 6.22A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 60mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9599
Mfr. Part No.DR1050-150-R
SGD1.333
Each (On a Reel of 500)
units
15 μH 3.7A 1050 10.3mm - 10.5mm 5mm - 10.3 x 10.5 x 5mm Yes ±30% 32.5mΩ DR1050 Ferrite
RS Stock No. 770-0845
Mfr. Part No.DR1050-180-R
SGD1.772
Each (In a Bag of 5)
units
18 μH 3.3A 1050 10.3mm - 10.5mm 5mm - 10.3 x 10.5 x 5mm Yes ±30% 41mΩ DR1050 Ferrite
RS Stock No. 169-9663
Mfr. Part No.DR74-151-R
SGD1.117
Each (On a Reel of 1100)
units
150 μH 810mA 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 591mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-1145
Mfr. Part No.DR74-151-R
SGD2.998
Each (In a Bag of 5)
units
150 μH 810mA 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 591mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-0423
Mfr. Part No.DRQ74-220-R
SGD3.326
Each (In a Bag of 5)
units
22 μH 2.13A 74 7.6mm - 7.6mm 4.45mm - 7.6 x 7.6 x 4.45mm Yes ±20% 371mΩ DRQ Ferrite
RS Stock No. 169-9580
Mfr. Part No.DRQ74-220-R
SGD1.24
Each (On a Reel of 1100)
units
22 μH 2.13A 74 7.6mm - 7.6mm 4.45mm - 7.6 x 7.6 x 4.45mm Yes ±20% 371mΩ DRQ Ferrite
RS Stock No. 169-9603
Mfr. Part No.DR1050-180-R
SGD1.362
Each (On a Reel of 500)
units
18 μH 3.3A 1050 10.3mm - 10.5mm 5mm - 10.3 x 10.5 x 5mm Yes ±30% 41mΩ DR1050 Ferrite
RS Stock No. 169-9671
Mfr. Part No.DR74-4R7-R
SGD1.117
Each (On a Reel of 1100)
units
4.7 μH 4.37A 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 25.4mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9672
Mfr. Part No.DR74-680-R
SGD1.019
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. 770-0410
Mfr. Part No.DRQ74-101-R
SGD3.326
Each (In a Bag of 5)
units
100 μH 990mA 74 7.6mm - 7.6mm 4.45mm - 7.6 x 7.6 x 4.45mm Yes ±20% 1.53Ω DRQ Ferrite
RS Stock No. 770-1072
Mfr. Part No.DR73-101-R
SGD1.846
Each (In a Bag of 5)
units
100 μH 790mA 73 7.6mm - 7.6mm 3.55mm - 7.6 x 7.6 x 3.55mm Yes ±20% 527mΩ DR73/74/125/127 Ferrite