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. 169-9659
Mfr. Part No.DR73-R33-R
SGD0.763
Each (On a Reel of 1350)
units
330 nH 14.4A 73 7.6mm - 7.6mm 3.55mm - 7.6 x 7.6 x 3.55mm Yes ±20% 7.3mΩ DR73/74/125/127 Ferrite
RS Stock No. 748-7094
Mfr. Part No.IHLP2525CZER2R2M01
BrandVishay
SGD3.028
Each (In a Bag of 5)
units
2.2 μH 8A 2225 (5664M) 6.86mm - 6.47mm 3mm - 6.86 x 6.47 x 3mm Yes ±20% 20mΩ IHLP Metal Composite
RS Stock No. 163-4072
Mfr. Part No.744273102
SGD3.591
Each (On a Reel of 1000)
units
11 μH 2.5A 744273 9.5mm - 8.3mm 5.3mm - 9.5 x 8.3 x 5.3mm - - 30mΩ WE-SL5 Ferrite
RS Stock No. 172-8371
Mfr. Part No.SRN5040-150M
BrandBourns
SGD0.269
Each (On a Reel of 1000)
units
15 μH 1.8A - 5mm - 5mm 4mm - 5 x 5 x 4mm Yes ±20% - SRN5040 Ferrite
RS Stock No. 172-8355
Mfr. Part No.SRN4018-4R7M
BrandBourns
SGD0.239
Each (On a Reel of 3000)
units
4.7 μH 1.9A rms - 4mm - 4mm 1.8mm - 4 x 4 x 1.8mm Yes ±20% - SRN4018 Ferrite
RS Stock No. 748-6827
Mfr. Part No.IHLP2020BZER1R0M01
BrandVishay
SGD1.712
Each (In a Bag of 5)
units
1 μH 7A 2020 5.49mm - 5.18mm 2mm - 5.49 x 5.18 x 2mm Yes ±20% 20mΩ IHLP Metal Composite
RS Stock No. 163-3604
Mfr. Part No.744053470
SGD1.245
Each (On a Reel of 400)
units
47 μH 820mA 5828 5.8mm - 5.8mm 2.8mm - 5.8 x 5.8 x 2.8mm Yes ±30% 250mΩ WE-TPC Ferrite
RS Stock No. 172-9684
Mfr. Part No.SRR6038-150Y
BrandBourns
SGD0.414
Each (On a Reel of 1000)
units
15 μH 1.9A 6038 6.8mm - 6.8mm 3.8mm - 6.8 x 6.8 x 3.8mm Yes ±30% 57mΩ SRR6038 Ferrite
RS Stock No. 169-3715
BrandRS PRO
SGD0.183
Each (On a Reel of 2000)
units
22 μH 800mA 43 4.5mm - 4mm 3.2mm - 4.5 x 4 x 3.2mm No ±20% 350mΩ - -
RS Stock No. 167-5710
Mfr. Part No.LQW18AN22NG00D
BrandMurata
SGD0.082
Each (On a Reel of 4000)
units
22 nH 500mA 0603 (1608M) 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±2% 170mΩ LQW18A -
RS Stock No. 617-1518
Mfr. Part No.74477724
SGD3.42
Each
units
470 μH 290mA - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 3.01Ω WE-PD Ferrite
RS Stock No. 163-3611
Mfr. Part No.744065001
SGD1.681
Each (On a Reel of 1000)
units
1 μH 8A 1028 10mm - 10mm 2.8mm - 10 x 10 x 2.8mm Yes ±30% 6.5mΩ WE-TPC Ferrite
RS Stock No. 164-5287
Mfr. Part No.3613C471K
SGD0.434
Each (On a Reel of 500)
units
470 μH 62mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 26Ω 3613C Ferrite
RS Stock No. 469-2782
Mfr. Part No.LQH32CN4R7M23L
BrandMurata
SGD0.457
Each (In a Pack of 20)
units
4.7 μH 450mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±20% 200mΩ LQH32CN -
RS Stock No. 161-8052
Mfr. Part No.LQW2BHN10NJ13L
BrandMurata
SGD0.246
Each (On a Reel of 2000)
units
10 nH 1.32A 0805 (2012M) 2mm - 1.5mm 1.7mm - 2 x 1.5 x 1.7mm - ±5% 30mΩ LQW2BH_13 Ferrite
RS Stock No. 167-8178
Mfr. Part No.B82464G4103M000
BrandEPCOS
SGD1.638
Each (On a Reel of 750)
units
10 μH 3.4A - 10.4mm - 10.4mm 4.8mm - 10.4 x 10.4 x 4.8mm Yes ±20% 30mΩ B82462-G4 Ferrite
RS Stock No. 782-3875
Mfr. Part No.7687714471
SGD4.12
Each
units
470 μH 600mA 1060 10mm - 10mm 6mm - 10 x 10 x 6mm Yes ±20% 1.45Ω WE-PDHV -
RS Stock No. 432-4524
Mfr. Part No.744220
SGD3.95
Each
units
4.7 mH 500mA - 9.2mm - 6mm 5mm - 9.2 x 6 x 5mm - ±50% 750mΩ WE-SL2 Ferrite
RS Stock No. 167-5687
Mfr. Part No.LQG15HS18NJ02D
BrandMurata
SGD0.027
Each (On a Reel of 10000)
units
18 nH 300mA 0402 (1005M) - - - - - 1 x 0.5 x 0.5mm - ±5% 360mΩ LQG15H -
RS Stock No. 801-9538
Mfr. Part No.B82432C1104K000
BrandEPCOS
SGD1.428
Each (In a Bag of 5)
units
100 μH 145mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 4.7Ω SIMID Ferrite