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. 801-9544
Mfr. Part No.B82432C1473K000
BrandEPCOS
HK$7.276
Each (In a Bag of 5)
units
47 μH 210mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 2.3Ω SIMID Ferrite
RS Stock No. 167-0298
Mfr. Part No.B82432C1473K000
BrandEPCOS
HK$3.27
Each (On a Reel of 2500)
units
47 μH 210mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 2.3Ω SIMID Ferrite
RS Stock No. 167-8535
Mfr. Part No.B82472G4103M000
BrandEPCOS
HK$4.615
Each (On a Reel of 1000)
units
10 μH 1.7A - 7.3mm - 7.3mm 3.3mm - 7.3 x 7.3 x 3.3mm Yes ±20% 80mΩ B82472-G4 Ferrite
RS Stock No. 167-8549
Mfr. Part No.B82477G4333M000
BrandEPCOS
HK$8.014
Each (On a Reel of 400)
units
33 μH 3A - 12.8mm - 12.8mm 8mm - 12.8 x 12.8 x 8mm Yes ±20% 53mΩ B82477-G4 Ferrite
RS Stock No. 496-1498
Mfr. Part No.B82472G4103M000
BrandEPCOS
HK$11.396
Each (In a Pack of 5)
units
10 μH 1.7A - 7.3mm - 7.3mm 3.3mm - 7.3 x 7.3 x 3.3mm Yes ±20% 80mΩ B82472-G4 Ferrite
RS Stock No. 496-1959
Mfr. Part No.B82477G4333M000
BrandEPCOS
HK$17.79
Each
units
33 μH 3A - 12.8mm - 12.8mm 8mm - 12.8 x 12.8 x 8mm Yes ±20% 53mΩ B82477-G4 Ferrite
RS Stock No. 496-1965
Mfr. Part No.B82477G4473M000
BrandEPCOS
HK$13.22
Each
units
47 μH 2.5A - 12.8mm - 12.8mm 8mm - 12.8 x 12.8 x 8mm Yes ±20% 82mΩ B82477-G4 Ferrite
RS Stock No. 167-0301
Mfr. Part No.B82432T1103K000
BrandEPCOS
HK$3.419
Each (On a Reel of 2500)
units
10 μH 650mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 350mΩ SIMID Ferrite
RS Stock No. 167-0296
Mfr. Part No.B82432C1103K000
BrandEPCOS
HK$3.465
Each (On a Reel of 2500)
units
10 μH 320mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 980mΩ SIMID Ferrite
RS Stock No. 801-9608
Mfr. Part No.B82442A1105K000
BrandEPCOS
HK$15.70
Each (In a Bag of 5)
units
1 mH 85mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm Yes ±10% 12Ω SIMID Ferrite
RS Stock No. 162-0242
Mfr. Part No.B82464G4104M000
BrandEPCOS
HK$8.242
Each (On a Reel of 750)
units
100 μH 1.05A - 10.4mm - 10.4mm 4.8mm - 10.4 x 10.4 x 4.8mm Yes ±20% 220mΩ B82462-G4 Ferrite
RS Stock No. 167-0297
Mfr. Part No.B82432C1104K000
BrandEPCOS
HK$3.581
Each (On a Reel of 2500)
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
RS Stock No. 167-8550
Mfr. Part No.B82477G4473M000
BrandEPCOS
HK$7.784
Each (On a Reel of 400)
units
47 μH 2.5A - 12.8mm - 12.8mm 8mm - 12.8 x 12.8 x 8mm Yes ±20% 82mΩ B82477-G4 Ferrite
RS Stock No. 496-0669
Mfr. Part No.B82464G4104M000
BrandEPCOS
HK$19.91
Each
units
100 μH 1.05A - 10.4mm - 10.4mm 4.8mm - 10.4 x 10.4 x 4.8mm Yes ±20% 220mΩ B82462-G4 Ferrite
RS Stock No. 801-9535
Mfr. Part No.B82432C1103K000
BrandEPCOS
HK$8.992
Each (In a Bag of 5)
units
10 μH 320mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 980mΩ SIMID Ferrite
RS Stock No. 162-0216
Mfr. Part No.B82442A1105K000
BrandEPCOS
HK$13.143
Each (On a Reel of 1500)
units
1 mH 85mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm Yes ±10% 12Ω SIMID Ferrite
RS Stock No. 167-0309
Mfr. Part No.B82432T1473K000
BrandEPCOS
HK$3.214
Each (On a Reel of 2500)
units
47 μH 350mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 1.35Ω SIMID Ferrite
RS Stock No. 801-9557
Mfr. Part No.B82432T1103K000
BrandEPCOS
HK$8.884
Each (In a Bag of 5)
units
10 μH 650mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 350mΩ SIMID Ferrite
RS Stock No. 801-9538
Mfr. Part No.B82432C1104K000
BrandEPCOS
HK$8.096
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
RS Stock No. 801-9588
Mfr. Part No.B82432T1473K000
BrandEPCOS
HK$6.87
Each (In a Bag of 5)
units
47 μH 350mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 1.35Ω SIMID Ferrite