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. 173-0524
Mfr. Part No.IHLP1212BZERR22M11
BrandVishay
€0.357
Each (On a Reel of 3000)
units
220 nH 6.5A 1212 3.6mm - 3mm 2mm - 3.6 x 3 x 2mm Yes ±20% 11.4mΩ IHLP Metal Composite
RS Stock No. 163-4112
Mfr. Part No.74437346010
€1.81
Each (On a Reel of 1000)
units
1 μH 8A 7030 6.6mm - 6.6mm 2.8mm - 6.6 x 6.6 x 2.8mm Yes ±20% 10mΩ WE-LHMI Composite Iron Powder
RS Stock No. 163-3772
Mfr. Part No.744778222
€1.658
Each (On a Reel of 1000)
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. 169-3446
BrandRS PRO
€0.268
Each (On a Reel of 400)
units
4.7 μH 6.8A 27 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes - 15.8mΩ - -
RS Stock No. 496-1319
Mfr. Part No.B82442H1224K000
BrandEPCOS
€1.148
Each (In a Pack of 5)
units
220 μH 240mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm - ±10% 2.72Ω SIMID Ferrite
RS Stock No. 167-4839
Mfr. Part No.LQM21PN2R2NGCD
BrandMurata
€0.105
Each (On a Reel of 4000)
units
2.2 μH 800mA 0805 (2012M) 2mm - 1.25mm 0.9mm - 2 x 1.25 x 0.9mm Yes ±30% 230mΩ LQM Ferrite Core
RS Stock No. 743-5071
Mfr. Part No.SRN3015-100M
BrandBourns
€0.334
Each (In a Bag of 10)
units
10 μH 1A 3015 3mm - 3mm 1.5mm - 3 x 3 x 1.5mm Yes ±20% 276mΩ SRN3015 Ferrite
RS Stock No. 167-5576
Mfr. Part No.LQH55DN472M03L
BrandMurata
€0.892
Each (On a Reel of 350)
units
4.7 mH 70mA 2220 (5650M) 5.7mm - 5mm 4.7mm - 5.7 x 5 x 4.7mm - ±20% 43.6Ω LQH55D -
RS Stock No. 614-2649
Mfr. Part No.VLCF4018T-470MR34-2
BrandTDK
€0.228
Each (In a Pack of 5)
units
47 μH 620mA - 4.3mm - 4mm 1.8mm - 4.3 x 4 x 1.8mm Yes ±20% 760mΩ VLCF -
RS Stock No. 724-2901
Mfr. Part No.LQW18AN12NG00D
BrandMurata
€0.144
Each (In a Pack of 10)
units
12 nH 600mA 0603 (1608M) 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±2% 130mΩ LQW18A -
RS Stock No. 749-8603
Mfr. Part No.ELL3FU100M
BrandPanasonic
€0.42
Each (In a Bag of 5)
units
10 μH 800mA ELL3FU 3mm - 3mm 1.2mm - 3 x 3 x 1.2mm Yes ±20% 300mΩ ELL3FU -
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. 792-6423
Mfr. Part No.LQW15AN2N2C10D
BrandMurata
€0.157
Each (In a Bag of 10)
units
2.2 nH 1A 0402 (1005M) 1mm - 0.6mm 0.5mm - 1 x 0.6 x 0.5mm - ±0.2nH 27mΩ LQW15A_10 -
RS Stock No. 163-4011
Mfr. Part No.744025100
€0.731
Each (On a Reel of 550)
units
10 μH 1.1A 2828 2.8mm - 2.8mm 2.8mm - 2.8 x 2.8 x 2.8mm Yes ±20% 190mΩ WE-TPC Ferrite
RS Stock No. 163-7987
Mfr. Part No.7447649168
€0.212
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. 173-1371
Mfr. Part No.IHLP2020CZER100M11
BrandVishay
€0.605
Each (On a Reel of 2000)
units
10 μH 2.75A 2020 5.49mm - 5.18mm 3mm - 5.49 x 5.18 x 3mm Yes ±20% 131.9mΩ IHLP Metal Composite
RS Stock No. 124-1861
Mfr. Part No.74279205
€0.191
Each (In a Pack of 50)
units
- 200mA 0805 (2012M) 2mm - 1.2mm 0.9mm - 2 x 1.2 x 0.9mm Yes - 450mΩ WE-CBF Ferrite
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. 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. 819-3374
Mfr. Part No.SRP1238A-100M
BrandBourns
€1.018
Each (In a Bag of 5)
units
10 μH 7A 1238 13.5mm AEC-Q200 12.5mm 3.3mm - 13.5 x 12.5 x 3.3mm Yes ±20% 34mΩ SRP1238A Carbonyl Powder