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. 173-4021
Mfr. Part No.CMS1-1-R
£0.855
Each (On a Reel of 600)
Units
4.5 μH 7A - 9.4mm - 7.2mm 2.6mm - 9.4 x 7.2 x 2.6mm - - 2.7mΩ CMS Ferrite
RS Stock No. 850-7275
Mfr. Part No.CMS1-1-R
£1.00
Each
Units
4.5 μH 7A - 9.4mm - 7.2mm 2.6mm - 9.4 x 7.2 x 2.6mm - - 2.7mΩ CMS Ferrite
RS Stock No. 770-1003
Mfr. Part No.DR127-101-R
£0.842
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. 169-9626
Mfr. Part No.DR125-470-R
£0.58
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. 770-0978
Mfr. Part No.DR125-470-R
£0.632
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. 169-9631
Mfr. Part No.DR127-101-R
£0.66
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. 770-1000
Mfr. Part No.DR127-150-R
£0.802
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. 169-9630
Mfr. Part No.DR127-150-R
£0.66
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. 169-9598
Mfr. Part No.DR1050-100-R
£0.64
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. 770-0827
Mfr. Part No.DR1050-100-R
£0.694
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. 169-9661
Mfr. Part No.DR74-101-R
£0.55
Each (On a Reel of 1100)
Units
100 μH 990mA 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 383mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-0990
Mfr. Part No.DR127-100-R
£0.72
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% 17.2mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9629
Mfr. Part No.DR127-100-R
£0.66
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% 17.2mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-1139
Mfr. Part No.DR74-101-R
£0.712
Each (In a Bag of 5)
Units
100 μH 990mA 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 383mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9660
Mfr. Part No.DR74-100-R
£0.55
Each (On a Reel of 1100)
Units
10 μH 3.17A 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 48.9mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-0943
Mfr. Part No.DR125-150-R
£0.712
Each (In a Bag of 5)
Units
15 μH 5.69A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 29.8mΩ DR73/74/125/127 Ferrite
RS Stock No. 770-1135
Mfr. Part No.DR74-100-R
£0.712
Each (In a Bag of 5)
Units
10 μH 3.17A 74 7.6mm - 7.6mm 4.35mm - 7.6 x 7.6 x 4.35mm Yes ±20% 48.9mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9619
Mfr. Part No.DR125-150-R
£0.58
Each (On a Reel of 600)
Units
15 μH 5.69A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 29.8mΩ DR73/74/125/127 Ferrite
RS Stock No. 169-9682
Mfr. Part No.DRA125-470-R
£0.77
Each (On a Reel of 600)
Units
47 μH 3.13A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 81mΩ DRA Ferrite
RS Stock No. 770-0570
Mfr. Part No.FP1005R1-R15-R
£0.424
Each (In a Bag of 5)
Units
108 nH 47A 1005 10.2mm - 7mm 4.95mm - 10.2 x 7 x 4.95mm - ±10% 390µΩ FP1005 Ferrite