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. 105-8574
Mfr. Part No.DFE252012P-2R2M=P2
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MYR1.351
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2.2 μH 3.4A 2012 2.5mm - 2mm 1.2mm - 2.5 x 2 x 1.2mm Yes - 84mΩ DFE252012P Powered Iron
RS Stock No. 167-0606
Mfr. Part No.DFE252012P-2R2M=P2
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MYR0.77
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2.2 μH 3.4A 2012 2.5mm - 2mm 1.2mm - 2.5 x 2 x 1.2mm Yes - 84mΩ DFE252012P Powdered Iron
RS Stock No. 167-0989
Mfr. Part No.FDSD0420-H-3R3M=P3
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MYR1.346
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3.3 μH 4.9A 0420 4.2mm - 4.2mm 2mm - 4.2 x 4.2 x 2mm Yes - 71mΩ FDSD0420 Powdered Iron
RS Stock No. 105-8565
Mfr. Part No.DFE252010P-R33M=P2
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MYR1.68
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330 nH 6.4A 2520 2.5mm - 2mm 1mm - 2.5 x 2 x 1mm Yes - 29mΩ DFE252010P Powered Iron
RS Stock No. 167-0954
Mfr. Part No.FDSD0630-H-1R5N=P3
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MYR1.632
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1.5 μH 16A 0630 7mm - 6.6mm 3mm - 7 x 6.6 x 3mm Yes - 13mΩ FDSD0630 Powdered Iron
RS Stock No. 105-8584
Mfr. Part No.FDSD0412-H-1R0M=P3
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MYR2.64
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1 μH 6.2A 0412 4.2mm - 4.2mm 1.2mm - 4.2 x 4.2 x 1.2mm Yes - 44mΩ FDSD0412 Powered Iron
RS Stock No. 167-0994
Mfr. Part No.FDSD0518-H-2R2M=P3
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MYR1.764
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2.2 μH 6.7A 0518 5.2mm - 4.9mm 1.8mm - 5.2 x 4.9 x 1.8mm Yes - 40mΩ FDSD0518 Powdered Iron
RS Stock No. 105-8566
Mfr. Part No.DFE252010P-R47M=P2
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MYR1.612
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470 nH 5.5A 2520 2.5mm - 2mm 1mm - 2.5 x 2 x 1mm Yes - 35mΩ DFE252010P Powered Iron
RS Stock No. 167-0992
Mfr. Part No.FDSD0518-H-1R0M=P3
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MYR1.671
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1 μH 11A 0518 5.2mm - 4.9mm 1.8mm - 5.2 x 4.9 x 1.8mm Yes - 21mΩ FDSD0518 Powdered Iron
RS Stock No. 105-9587
Mfr. Part No.FDSD0420-H-3R3M=P3
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MYR3.24
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3.3 μH 4.9A 0420 4.2mm - 4.2mm 2mm - 4.2 x 4.2 x 2mm Yes - 71mΩ FDSD0420 Powered Iron
RS Stock No. 105-8564
Mfr. Part No.DFE252010P-4R7M=P2
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MYR1.612
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4.7 μH 1.9A 2520 2.5mm - 2mm 1mm - 2.5 x 2 x 1mm Yes - 270mΩ DFE252010P Powered Iron
RS Stock No. 106-0233
Mfr. Part No.FDSD0518-H-4R7M=P3
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MYR3.407
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4.7 μH 4.9A 0518 5.2mm - 4.9mm 1.8mm - 5.2 x 4.9 x 1.8mm Yes - 73mΩ FDSD0518 Powered Iron
RS Stock No. 106-0344
Mfr. Part No.FDSD0630-H-1R0M=P3
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MYR3.528
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1 μH 19A 0630 7mm - 6.6mm 3mm - 7 x 6.6 x 3mm Yes - 11mΩ FDSD0630 Powered Iron
RS Stock No. 167-0955
Mfr. Part No.FDSD0630-H-1R0M=P3
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MYR1.632
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1 μH 19A 0630 7mm - 6.6mm 3mm - 7 x 6.6 x 3mm Yes - 11mΩ FDSD0630 Powdered Iron
RS Stock No. 167-0997
Mfr. Part No.FDSD0420-H-100M=P3
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MYR1.346
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10 μH 3.3A 0420 4.2mm - 4.2mm 2mm - 4.2 x 4.2 x 2mm Yes - 200mΩ FDSD0420 Powdered Iron
RS Stock No. 105-8550
Mfr. Part No.1286AS-H-R47M=P2
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MYR1.62
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470 nH 4.2A 2016 2mm - 1.6mm 1.2mm - 2 x 1.6 x 1.2mm Yes - 52mΩ DFE201612C Powered Iron
RS Stock No. 167-0915
Mfr. Part No.1274AS-H-3R3N=P3
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MYR2.264
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3.3 μH 14.4A 10050 10mm - 10mm 5mm - 10 x 10 x 5mm Yes - 11.4mΩ DEM10050C Ferrite
RS Stock No. 105-8555
Mfr. Part No.DFE201612P-R33M=P2
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MYR1.78
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330 nH 6.2A 2016 2mm - 1.6mm 1.2mm - 2 x 1.6 x 1.2mm Yes - 28mΩ DFE201612P Powered Iron
RS Stock No. 106-0287
Mfr. Part No.FDSD0518-H-2R2M=P3
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MYR3.884
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2.2 μH 6.7A 0518 5.2mm - 4.9mm 1.8mm - 5.2 x 4.9 x 1.8mm Yes - 40mΩ FDSD0518 Powered Iron
RS Stock No. 105-8544
Mfr. Part No.DFE201610P-R33M=P2
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MYR1.73
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330 nH 5.2A 2016 2mm - 1.6mm 1mm - 2 x 1.6 x 1mm Yes - 34mΩ DFE201610P Powered Iron