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. 801-9598
Mfr. Part No.B82442A1104K000
BrandEPCOS
$1.818
Each (In a Bag of 5)
units
100 μH 250mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm Yes ±10% 1.28Ω SIMID Ferrite
RS Stock No. 167-0243
Mfr. Part No.B82442A1104K000
BrandEPCOS
$2,308.23
1 Reel of 1500
Reel(s)
100 μH 250mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm Yes ±10% 1.28Ω SIMID Ferrite
RS Stock No. 706-2884
Mfr. Part No.B82422H1333K000
BrandEPCOS
$0.597
Each (In a Pack of 10)
units
33 μH 280mA 1210 (3225M) 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - ±10% 1.4Ω SIMID Ferrite
RS Stock No. 167-0327
Mfr. Part No.B82422H1333K000
BrandEPCOS
$0.588
Each (On a Reel of 2000)
units
33 μH 280mA 1210 (3225M) 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - ±10% 1.4Ω SIMID Ferrite
RS Stock No. 166-0184
Mfr. Part No.B82442T1103K050
BrandEPCOS
$1,833.01
1 Reel of 1500
Reel(s)
10 μH 1.42A 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm - - 132mΩ SIMID Ferrite
RS Stock No. 706-2866
Mfr. Part No.B82422H1103K000
BrandEPCOS
$0.69
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. 905-4321
Mfr. Part No.B82442T1103K050
BrandEPCOS
$1.05
Each (In a Bag of 5)
units
10 μH 1.42A 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm - - 132mΩ SIMID Ferrite
RS Stock No. 134-9477
Mfr. Part No.B82422H1103K000
BrandEPCOS
$0.405
Each (On a Reel of 2000)
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. 905-4387
Mfr. Part No.B82442T1685K050
BrandEPCOS
$1.14
Each (In a Bag of 5)
units
6.8 mH 65mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm - - 60.3Ω SIMID Ferrite
RS Stock No. 162-0208
Mfr. Part No.B82476A1104M000
BrandEPCOS
$1.008
Each (On a Reel of 750)
units
100 μH 1.3A SMD 12.95mm - 9.4mm 5.08mm - 12.95 x 9.4 x 5.08mm - ±20% 230mΩ B82476A1 Ferrite
RS Stock No. 801-9819
Mfr. Part No.B82559A7103A020
BrandEPCOS
$12.51
Each
units
10 μH 18.3A ERU20 21.5mm - 21mm 10.8mm - 21.5 x 21 x 10.8mm Yes ±10% 3.9mΩ B82559A Ferrite
RS Stock No. 769-5822
Mfr. Part No.B82477R4104M100
BrandEPCOS
$4.91
Each
units
100 μH 2.25A - 12.5mm - 12.5mm 8.5mm - 12.5 x 12.5 x 8.5mm Yes ±20% 120mΩ B82477-R4 Ferrite
RS Stock No. 706-2890
Mfr. Part No.B82422H1473K000
BrandEPCOS
$0.615
Each (In a Pack of 10)
units
47 μH 230mA 1210 (3225M) 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - ±10% 2.1Ω SIMID Ferrite
RS Stock No. 162-0214
Mfr. Part No.B82559A2102A020
BrandEPCOS
$6.159
Each (On a Reel of 130)
units
1 μH 50A ERU20 21.5mm - 21mm 9.8mm - 21.5 x 21 x 9.8mm Yes ±10% 620µΩ B82559A Ferrite
RS Stock No. 167-0263
Mfr. Part No.B82559A7103A020
BrandEPCOS
$10.099
Each (On a Reel of 130)
units
10 μH 18.3A ERU20 21.5mm - 21mm 10.8mm - 21.5 x 21 x 10.8mm Yes ±10% 3.9mΩ B82559A Ferrite
RS Stock No. 167-0151
Mfr. Part No.B82477R4104M100
BrandEPCOS
$3.232
Each (On a Reel of 350)
units
100 μH 2.25A - 12.5mm - 12.5mm 8.5mm - 12.5 x 12.5 x 8.5mm Yes ±20% 120mΩ B82477-R4 Ferrite
RS Stock No. 801-9796
Mfr. Part No.B82559A2102A020
BrandEPCOS
$9.29
Each
units
1 μH 50A ERU20 21.5mm - 21mm 9.8mm - 21.5 x 21 x 9.8mm Yes ±10% 620µΩ B82559A Ferrite
RS Stock No. 167-0558
Mfr. Part No.B82422T1102K000
BrandEPCOS
$876.40
1 Reel of 2000
Reel(s)
1 μH 400mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm Yes ±10% 600mΩ SIMID Ferrite
RS Stock No. 801-9497
Mfr. Part No.B82422T1102K000
BrandEPCOS
$0.432
Each (In a Bag of 10)
units
1 μH 400mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm Yes ±10% 600mΩ SIMID Ferrite
RS Stock No. 773-0676
Mfr. Part No.B82476A1104M000
BrandEPCOS
$1.00
Each
units
100 μH 1.3A SMD 12.95mm - 9.4mm 5.08mm - 12.95 x 9.4 x 5.08mm - ±20% 230mΩ B82476A1 Ferrite