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. 333-8500
Mfr. Part No.74477120
HK$13.87
Each
units
100 μH 1.53A - 12mm - 12mm 6mm - 12 x 12 x 6mm Yes ±20% 160mΩ WE-PD Ferrite
RS Stock No. 744-4797
Mfr. Part No.744053150
HK$10.894
Each (In a Bag of 5)
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15 μH 1.38A 5828 5.8mm - 5.8mm 2.8mm - 5.8 x 5.8 x 2.8mm Yes ±30% 100mΩ WE-TPC Ferrite
RS Stock No. 163-3331
Mfr. Part No.74477120
HK$20.582
Each (On a Reel of 500)
units
100 μH 1.53A - 12mm - 12mm 6mm - 12 x 12 x 6mm Yes ±20% 160mΩ WE-PD Ferrite
RS Stock No. 163-4039
Mfr. Part No.744053150
HK$9.16
Each (On a Reel of 400)
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15 μH 1.38A 5828 5.8mm - 5.8mm 2.8mm - 5.8 x 5.8 x 2.8mm Yes ±30% 100mΩ WE-TPC Ferrite
RS Stock No. 669-0179
Mfr. Part No.744029100
HK$12.03
Each (In a Pack of 5)
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10 μH 750mA 2813 2.8mm - 2.8mm 1.35mm - 2.8 x 2.8 x 1.35mm Yes ±30% 470mΩ WE-TPC Ferrite
RS Stock No. 333-8572
Mfr. Part No.74477010
HK$18.74
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10 μH 6.2A - 12mm - 12mm 8mm - 12 x 12 x 8mm Yes ±20% 22mΩ WE-PD Ferrite
RS Stock No. 163-3284
Mfr. Part No.7445720
HK$14.891
Each (On a Reel of 250)
units
100 μH 2A - 22mm - 15mm 7mm - 22 x 15 x 7mm No ±10% 202mΩ WE-PD4 Ferrite
RS Stock No. 396-3493
Mfr. Part No.7445720
HK$19.26
Each (In a Pack of 2)
units
100 μH 2A - 22mm - 15mm 7mm - 22 x 15 x 7mm No ±10% 202mΩ WE-PD4 Ferrite
RS Stock No. 163-3575
Mfr. Part No.744029100
HK$9,900.00
1 Reel of 1200
Reel(s)
10 μH 750mA 2813 2.8mm - 2.8mm 1.35mm - 2.8 x 2.8 x 1.35mm Yes ±30% 470mΩ WE-TPC Ferrite
RS Stock No. 744-4915
Mfr. Part No.744778002
HK$17.556
Each (In a Bag of 5)
units
2.2 μH 4.8A 7332 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 20mΩ WE-PD Ferrite
RS Stock No. 163-3326
Mfr. Part No.74477010
HK$22.885
Each (On a Reel of 500)
units
10 μH 6.2A - 12mm - 12mm 8mm - 12 x 12 x 8mm Yes ±20% 22mΩ WE-PD Ferrite
RS Stock No. 163-4230
Mfr. Part No.744778002
HK$13.35
Each (On a Reel of 1000)
units
2.2 μH 4.8A 7332 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 20mΩ WE-PD Ferrite
RS Stock No. 163-3321
Mfr. Part No.74476620
HK$3.95
Each (On a Reel of 500)
units
100 μH 110mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm - ±10% WE-GF Ferrite
RS Stock No. 163-3327
Mfr. Part No.744770115
HK$21.785
Each (On a Reel of 500)
units
15 μH 5A - 12mm - 12mm 8mm - 12 x 12 x 8mm Yes ±20% 27mΩ WE-PD Ferrite
RS Stock No. 367-4424
Mfr. Part No.74476620
HK$4.67
Each (In a Pack of 10)
units
100 μH 110mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm - ±10% WE-GF Ferrite
RS Stock No. 617-1079
Mfr. Part No.744053220
HK$8.15
Each
units
22 μH 1.15A 5828 5.8mm - 5.8mm 2.8mm - 5.8 x 5.8 x 2.8mm Yes ±30% 120mΩ WE-TPC Ferrite
RS Stock No. 333-8588
Mfr. Part No.744770115
HK$18.93
Each
units
15 μH 5A - 12mm - 12mm 8mm - 12 x 12 x 8mm Yes ±20% 27mΩ WE-PD Ferrite
RS Stock No. 367-5089
Mfr. Part No.744777122
HK$19.72
Each
units
22 μH 1.41A - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 110mΩ WE-PD Ferrite
RS Stock No. 144-9823
Mfr. Part No.744777122
HK$9.501
Each (On a Reel of 1000)
units
22 μH 1.41A - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 110mΩ WE-PD Ferrite
RS Stock No. 163-3602
Mfr. Part No.744053220
HK$7.586
Each (On a Reel of 400)
units
22 μH 1.15A 5828 5.8mm - 5.8mm 2.8mm - 5.8 x 5.8 x 2.8mm Yes ±30% 120mΩ WE-TPC Ferrite