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. 748-7075
Mfr. Part No.IHLP2525CZERR47M01
BrandVishay
£1.392
Each (In a Bag of 5)
Units
470 nH 17.5A 2225 (5664M) 6.86mm - 6.47mm 3mm - 6.86 x 6.47 x 3mm Yes ±20% 4.2mΩ IHLP Metal Composite
RS Stock No. 173-0471
Mfr. Part No.IHLP2525CZERR47M01
BrandVishay
£0.735
Each (On a Reel of 2000)
Units
470 nH 17.5A 2225 (5664M) 6.86mm - 6.47mm 3mm - 6.86 x 6.47 x 3mm Yes ±20% 4.2mΩ IHLP Metal Composite
RS Stock No. 172-7165
Mfr. Part No.SRU1038-100Y
BrandBourns
£0.312
Each (On a Reel of 800)
Units
10 μH 3.8A 1038 10mm - 10mm 3.8mm - 10 x 10 x 3.8mm Yes ±30% - SRU1038 Ferrite
RS Stock No. 736-1406
Mfr. Part No.SRU1038-100Y
BrandBourns
£0.343
Each (In a Bag of 10)
Units
10 μH 3.8A 1038 10mm - 10mm 3.8mm - 10 x 10 x 3.8mm Yes ±30% 25mΩ SRU1038 Ferrite
RS Stock No. 748-6805
Mfr. Part No.IHLP1616BZER4R7M11
BrandVishay
£0.598
Each (In a Bag of 5)
Units
4.7 μH 1.7A 1616 4.45mm - 4.06mm 2mm - 4.45 x 4.06 x 2mm Yes ±20% 105mΩ IHLP-1616BZ-11 Metal Composite
RS Stock No. 173-3731
Mfr. Part No.IHLP1616BZER4R7M11
BrandVishay
£0.398
Each (On a Reel of 4000)
Units
4.7 μH 1.7A 1616 4.45mm - 4.06mm 2mm - 4.45 x 4.06 x 2mm Yes ±20% 105mΩ IHLP Metal Composite
RS Stock No. 124-1847
Mfr. Part No.744232090
£0.902
Each (In a Pack of 10)
Units
- 370mA 1206 (3216M) 3.2mm - 1.6mm 1.8mm - 3.2 x 1.6 x 1.8mm - ±25% 300mΩ WE-CNSW SMD Ferrite
RS Stock No. 816-4957
Mfr. Part No.744912122
£0.89
Each (In a Bag of 5)
Units
22 nH 3A 4248 3.81mm - 4.2mm 4.83mm - 3.81 x 4.2 x 4.83mm Yes ±5% 4.2mΩ WE-CAIR -
RS Stock No. 163-5565
Mfr. Part No.744912122
£0.569
Each (On a Reel of 1000)
Units
22 nH 3A 4248 3.81mm - 4.2mm 4.83mm - 3.81 x 4.2 x 4.83mm Yes ±5% 4.2mΩ WE-CAIR -
RS Stock No. 173-0474
Mfr. Part No.IHLP2525CZER10RM01
BrandVishay
£0.417
Each (On a Reel of 2000)
Units
10 μH 3A 2225 (5664M) 6.86mm - 6.47mm 3mm - 6.86 x 6.47 x 3mm Yes ±20% 1.7mΩ IHLP Metal Composite
RS Stock No. 151-098
Mfr. Part No.IHLP2525CZER10RM01
BrandVishay
£0.782
Each (In a Pack of 5)
Units
10 μH 3A 2225 (5664M) 6.86mm - 6.47mm 3mm - 6.86 x 6.47 x 3mm Yes ±20% 1.7mΩ IHLP Metal Composite
RS Stock No. 124-1886
Mfr. Part No.74477710
£1.774
Each (In a Pack of 5)
Units
10 μH 2A 7345 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 49mΩ WE-PD Ferrite
RS Stock No. 801-9560
Mfr. Part No.B82432T1223K000
BrandEPCOS
£0.764
Each (In a Bag of 5)
Units
22 μH 450mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 700mΩ SIMID Ferrite
RS Stock No. 167-0302
Mfr. Part No.B82432T1223K000
BrandEPCOS
£0.274
Each (On a Reel of 2500)
Units
22 μH 450mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 700mΩ SIMID Ferrite
RS Stock No. 134-9481
Mfr. Part No.B82787C0513H002
BrandEPCOS
£0.47
Each (On a Reel of 2500)
Units
51 μH 200mA SMD 4.5mm - 3.2mm 2.8mm - 4.5 x 3.2 x 2.8mm - -30 → +50% ACT45B Ferrite
RS Stock No. 774-0544
Mfr. Part No.B82787C0513H002
BrandEPCOS
£1.21
Each
Units
51 μH 200mA SMD 4.5mm - 3.2mm 2.8mm - 4.5 x 3.2 x 2.8mm - -30 → +50% ACT45B Ferrite
RS Stock No. 163-3255
Mfr. Part No.74454133
£1.157
Each (On a Reel of 600)
Units
33 μH 1.2A - 12.7mm - 10mm 4.9mm - 12.7 x 10 x 4.9mm Yes ±15% 160mΩ WE-PD3 Ferrite
RS Stock No. 144-9823
Mfr. Part No.744777122
£0.876
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. 367-5089
Mfr. Part No.744777122
£2.36
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. 367-5073
Mfr. Part No.74454133
£1.28
Each
Units
33 μH 1.2A - 12.7mm - 10mm 4.9mm - 12.7 x 10 x 4.9mm Yes ±15% 160mΩ WE-PD3 Ferrite
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