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. 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. 172-9742
Mfr. Part No.SRU1038-101Y
BrandBourns
€0.326
Each (On a Reel of 800)
units
100 μH 1.3A 7032 10mm - 10mm 3.8mm - 10 x 10 x 3.8mm Yes - 220mΩ SRU1038 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. 167-4959
Mfr. Part No.LQH44PN100MGRL
BrandMurata
€0.166
Each (On a Reel of 1000)
units
10 μH 1.1A 4040 4mm - 4mm 0.9mm - 4 x 4 x 0.9mm Yes - 320mΩ LQH Ferrite
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. 574-217
Mfr. Part No.ELL4LG100MA
BrandPanasonic
€0.144
Each (In a Pack of 5)
units
10 μH 950mA - 3.8mm - 3.8mm 1.8mm - 3.8 x 3.8 x 1.8mm Yes ±20% 200mΩ ELL-G -
RS Stock No. 740-9362
BrandRS PRO
€0.108
Each (In a Bag of 20)
units
2.2 μH 2.6A 43 4.5mm - 4mm 3.2mm - 4.5 x 4 x 3.2mm No ±20% 60mΩ - -
RS Stock No. 170-3323
Mfr. Part No.VLS4012ET-100M
BrandTDK
€0.248
Each (On a Reel of 1000)
units
10 μH 1.33A 4012 4mm - 4mm 1.2mm - 4 x 4 x 1.2mm Yes ±20% 228mΩ VLS-E Ferrite
RS Stock No. 614-2920
Mfr. Part No.VLCF5020T-330MR62-1
BrandTDK
€0.802
Each (In a Pack of 5)
units
33 μH 860mA - 5.3mm - 5mm 2mm - 5.3 x 5 x 2mm Yes ±20% 717mΩ VLCF -
RS Stock No. 111-1028
Mfr. Part No.ACM2520-601-2P-T
BrandTDK
€0.38
Each (On a Reel of 2000)
units
- 300mA 2520 2.5mm - 2mm 1.2mm - 2.5 x 2 x 1.2mm - - 450mΩ ACM -
RS Stock No. 163-7987
Mfr. Part No.7447649168
€0.199
Each (On a Reel of 1000)
units
68 μH 225mA 3225 2.9mm - 2.5mm 2.2mm - 2.9 x 2.5 x 2.2mm - - 8.45Ω WE-GFH Iron
RS Stock No. 744-4870
Mfr. Part No.744770222
€1.91
Each
units
220 μH 1.49A 1280 12mm - 12mm 8mm - 12 x 12 x 8mm Yes ±20% 390mΩ WE-PD Ferrite
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
RS Stock No. 167-4076
Mfr. Part No.LQH32PN150MN0L
BrandMurata
€0.112
Each (On a Reel of 2000)
units
15 μH 520mA 1210 (3225M) 3.2mm - 2.5mm 1.55mm - 3.2 x 2.5 x 1.55mm Yes ±20% 684mΩ LQH32P Ferrite
RS Stock No. 172-7185
Mfr. Part No.SRR1260-151K
BrandBourns
€0.425
Each (On a Reel of 600)
units
150 μH 1.55A 1260 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±10% - SRR1260 Ferrite
RS Stock No. 125-3186
Mfr. Part No.LQH44PN4R7MP0L
BrandMurata
€0.152
Each (On a Reel of 1000)
units
4.7 μH 1.7A 1515 4mm - 3.5mm 1.65mm - 4 x 3.5 x 1.65mm Yes ±20% 80mΩ LQH44P_P0 -
RS Stock No. 500-3076
Mfr. Part No.744232102
€1.198
Each (In a Pack of 5)
units
- 230mA 1206 (3216M) 3.2mm - 1.6mm 1.8mm - 3.2 x 1.6 x 1.8mm - ±25% WE-CNSW SMD Ferrite
RS Stock No. 108-4685
Mfr. Part No.VLCF4018T-470MR34-2
BrandTDK
€0.287
Each (On a Reel of 1000)
units
47 μH 620mA - 4.3mm - 4mm 1.8mm - 4.3 x 4 x 1.8mm Yes ±20% 760mΩ VLCF -
RS Stock No. 108-4722
Mfr. Part No.SLF10145T-101M1R0-PF
BrandTDK
€0.431
Each (On a Reel of 500)
units
100 μH 1A - 10.1mm - 10.1mm 4.5mm - 10.1 x 10.1 x 4.5mm - ±20% 200mΩ SLF -
RS Stock No. 167-5793
Mfr. Part No.LQH44PN100MP0L
BrandMurata
€0.141
Each (On a Reel of 1000)
units
10 μH 1.17A 1515 4mm - 3.5mm 1.65mm - 4 x 3.5 x 1.65mm Yes ±20% 160mΩ LQH44P_P0 -