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. 124-1889
Mfr. Part No.74456133
€1.964
Each (In a Pack of 5)
units
33 μH 2.3A - 12.7mm - 10mm 5mm - 12.7 x 10 x 5mm - ±10% 120mΩ WE-PD4 Ferrite
RS Stock No. 715-7471
Mfr. Part No.28473C
€1.10
Each
units
47 μH 2.66A - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 86mΩ 2800 -
RS Stock No. 122-9186
Mfr. Part No.SRU1038-101Y
BrandBourns
€0.639
Each (In a Pack of 10)
units
100 μH 1.3A 7032 10mm - 10mm 3.8mm - 10 x 10 x 3.8mm Yes - 220mΩ SRU1038 Ferrite
RS Stock No. 617-1489
Mfr. Part No.744778222
€2.69
Each
units
220 μH 430mA - 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 1.65Ω WE-PD Ferrite
RS Stock No. 831-9232
Mfr. Part No.ACM12V-701-2PL-TL00
BrandTDK
€2.09
Each
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- 8A 12V 12mm - 11mm 6mm - 12 x 11 x 6mm Yes - 6mΩ ACM-V Ferrite
RS Stock No. 106-8885
Mfr. Part No.50475C
€0.843
Each (On a Reel of 1000)
units
4.7 mH 400mA - 7mm - 5.9mm 3.6mm - 7 x 5.9 x 3.6mm - -30 → +50% 700mΩ 5000 -
RS Stock No. 748-7457
Mfr. Part No.IHLP5050FDER6R8M01
BrandVishay
€2.75
Each
units
6.8 μH 11.5A 5050 13.2mm - 12.9mm 6.5mm - 13.2 x 12.9 x 6.5mm Yes ±20% 14mΩ IHLP Metal Composite
RS Stock No. 122-9229
Mfr. Part No.PM2120-121K-RC
BrandBourns
€2.82
Each (In a Pack of 2)
units
120 μH 5.8A 2120 30.5mm - 25.4mm 22.1mm - 30.5 x 25.4 x 22.1mm - - 39mΩ PM2120 Iron
RS Stock No. 813-5744
Mfr. Part No.SRN6028-150M
BrandBourns
€0.144
Each (In a Bag of 10)
units
15 μH 1.8A - 6mm - 6mm 2.8mm - 6 x 6 x 2.8mm Yes ±20% 114mΩ SRN6028 Ferrite
RS Stock No. 170-3320
Mfr. Part No.VLS3015ET-100M
BrandTDK
€0.209
Each (On a Reel of 2000)
units
10 μH 940mA 3015 3mm - 3mm 1.5mm - 3 x 3 x 1.5mm Yes ±20% 288mΩ VLS-E Ferrite
RS Stock No. 923-6330
Mfr. Part No.74479875222C
€0.396
Each (In a Pack of 50)
units
2.2 μH 1.4A 0805 (2012M) 2mm - 1.2mm 1mm - 2 x 1.2 x 1mm Yes - 140mΩ WE-PMI -
RS Stock No. 172-7226
Mfr. Part No.SRP6540-8R2M
BrandBourns
€0.688
Each (On a Reel of 1200)
units
8.2 μH 4.5A - 7.2mm - 6.5mm 4mm - 7.2 x 6.5 x 4mm Yes ±20% - SRP6540 Iron
RS Stock No. 604-3889
Mfr. Part No.SLF10145T-101M1R0-PF
BrandTDK
€0.986
Each (In a Pack of 5)
units
100 μH 1A - 10.1mm - 10.1mm 4.5mm - 10.1 x 10.1 x 4.5mm Yes ±20% 200mΩ - -
RS Stock No. 144-9797
Mfr. Part No.74279205
€0.078
Each (On a Reel of 4000)
units
- 200mA 0805 (2012M) 2mm - 1.2mm 0.9mm - 2 x 1.2 x 0.9mm Yes - 450mΩ WE-CBF Ferrite
RS Stock No. 144-9809
Mfr. Part No.742792515
€0.188
Each (On a Reel of 1000)
units
- 3A 1812 (4532M) 4.5mm - 3.2mm 1.5mm - 4.5 x 3.2 x 1.5mm Yes - 50mΩ WE-CBF Ferrite
RS Stock No. 108-4723
Mfr. Part No.SLF10145T-470M1R4-PF
BrandTDK
€0.445
Each (On a Reel of 500)
units
47 μH 1.4A - - - - - - - - ±20% 100mΩ SLF -
RS Stock No. 172-9644
Mfr. Part No.SRN8040-101M
BrandBourns
€0.232
Each (On a Reel of 1000)
units
100 μH 1A 8040 8mm - 8mm 4mm - 8 x 8 x 4mm Yes ±20% 400mΩ SRN8040 Ferrite
RS Stock No. 878-8575
Mfr. Part No.LQH44PN100MGRL
BrandMurata
€0.388
Each (In a Bag of 10)
units
10 μH 1.1A 4040 4mm - 4mm 0.9mm - 4 x 4 x 0.9mm Yes - 320mΩ LQH Ferrite
RS Stock No. 170-9301
Mfr. Part No.28473C
€0.876
Each (On a Reel of 350)
units
47 μH 2.66A - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 86mΩ 2800 -
RS Stock No. 166-9804
Mfr. Part No.LQW2BAS10NJ00L
BrandMurata
€0.071
Each (On a Reel of 2000)
units
10 nH 600mA 2015 2.09mm - 1.53mm 1.42mm - 2.09 x 1.53 x 1.42mm - ±5% 100mΩ LQW2BAS_00 Non-Magnetic Core