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. 171-1186
Mfr. Part No.B82432T1472K000
BrandEPCOS
TWD13.00
Each (On a Reel of 2500)
units
4.7 μH 800mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 220mΩ SIMID Ferrite
RS Stock No. 801-9585
Mfr. Part No.B82432T1472K000
BrandEPCOS
TWD34.00
Each (In a Bag of 5)
units
4.7 μH 800mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 220mΩ SIMID Ferrite
RS Stock No. 496-0580
Mfr. Part No.B82464G4472M000
BrandEPCOS
TWD66.00
Each
units
4.7 μH 4.9A - 10.4mm - 10.4mm 4.8mm - 10.4 x 10.4 x 4.8mm Yes ±20% 15mΩ B82462-G4 Ferrite
RS Stock No. 167-8185
Mfr. Part No.B82464G4472M000
BrandEPCOS
TWD32.90
Each (On a Reel of 750)
units
4.7 μH 4.9A - 10.4mm - 10.4mm 4.8mm - 10.4 x 10.4 x 4.8mm Yes ±20% 15mΩ B82462-G4 Ferrite
RS Stock No. 185-8191
Mfr. Part No.B82559A3152A016
BrandEPCOS
TWD182.00
1 Tape of 1
Tape(s)
1.5 μH 37A SMD 17.3mm AEC-Q200 18.7mm 7.7mm - 17.3 x 18.7 x 7.7mm Yes ±10% 1.6mΩ B82559A016 Ferrite
RS Stock No. 706-2866
Mfr. Part No.B82422H1103K000
BrandEPCOS
TWD21.10
Each (In a Pack of 10)
units
10 μH 500mA 1210 (3225M) 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - ±10% 460mΩ SIMID Ferrite
RS Stock No. 496-1511
Mfr. Part No.B82472G4333M000
BrandEPCOS
TWD44.60
Each (In a Pack of 5)
units
33 μH 940mA - 7.3mm - 7.3mm 3.3mm - 7.3 x 7.3 x 3.3mm Yes ±20% 250mΩ B82472-G4 Ferrite
RS Stock No. 167-0201
Mfr. Part No.B82464P4333M000
BrandEPCOS
TWD36.30
Each (On a Reel of 750)
units
33 μH 1.85A SMD 10.4mm - 10.4mm 4.8mm - 10.4 x 10.4 x 4.8mm Yes ±20% 75mΩ B82464P4 Ferrite
RS Stock No. 769-5854
Mfr. Part No.B82477R4334M100
BrandEPCOS
TWD105.00
Each
units
330 μH 1.12A - 12.5mm - 12.5mm 8.5mm - 12.5 x 12.5 x 8.5mm Yes ±20% 425mΩ B82477-R4 Ferrite
RS Stock No. 185-7941
Mfr. Part No.B82559A6682A016
BrandEPCOS
TWD80.50
Each (On a Reel of 240)
units
6.8 μH 15.5A SMD 17.3mm AEC-Q200 18.7mm 7.5mm - 17.3 x 18.7 x 7.5mm Yes ±10% 6.8mΩ B82559A016 Ferrite
RS Stock No. 185-8208
Mfr. Part No.B82559A0303A016
BrandEPCOS
TWD163.00
1 Tape of 1
Tape(s)
30 μH 9.2A SMD 17.3mm AEC-Q200 18.7mm 10.2mm - 17.3 x 18.7 x 10.2mm Yes ±10% 16.5mΩ B82559A016 Ferrite
RS Stock No. 167-0309
Mfr. Part No.B82432T1473K000
BrandEPCOS
TWD12.40
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. 170-2825
Mfr. Part No.B82422A3680K100
BrandEPCOS
TWD7.70
Each (On a Reel of 2000)
units
68 nH 480mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% 210mΩ SIMID Ceramic
RS Stock No. 167-8557
Mfr. Part No.B82477G4684M000
BrandEPCOS
TWD29.80
Each (On a Reel of 400)
units
680 μH 680mA - 12.8mm - 12.8mm 8mm - 12.8 x 12.8 x 8mm Yes ±20% 1.24Ω B82477-G4 Ferrite
RS Stock No. 167-8441
Mfr. Part No.B82442H1223K000
BrandEPCOS
TWD24.40
Each (On a Reel of 1500)
units
22 μH 670mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm - ±10% 350mΩ SIMID Ferrite
RS Stock No. 801-9591
Mfr. Part No.B82442A1102K000
BrandEPCOS
TWD56.60
Each (In a Bag of 5)
units
1 μH 1.8A 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm Yes ±10% 24mΩ SIMID Ferrite
RS Stock No. 844-2711
Mfr. Part No.B82464P4105M000
BrandEPCOS
TWD96.00
Each (In a Bag of 3)
units
1 mH 340mA SMD 10.4mm - 10.4mm 4.8mm - 10.4 x 10.4 x 4.8mm Yes ±20% 2.2Ω B82464P4 Ferrite
RS Stock No. 162-0240
Mfr. Part No.B82464A4334K000
BrandEPCOS
TWD26.50
Each (On a Reel of 750)
units
330 μH 580mA - 10.4mm - 10.4mm 4.8mm - 10.4 x 10.4 x 4.8mm - ±10% B82462-A4 Ferrite
RS Stock No. 167-0248
Mfr. Part No.B82442A1475K000
BrandEPCOS
TWD29.30
Each (On a Reel of 1500)
units
4.7 mH 36mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm Yes ±10% 62.4Ω SIMID Ferrite
RS Stock No. 191-0318
Mfr. Part No.B82422A1222K100
BrandEPCOS
TWD18.80
Each (In a Pack of 5)
units
2.2 μH 270mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% 750mΩ SIMID Ferrite