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. 792-2812
Mfr. Part No.74438335220
MYR6.15
Each
units
22 μH 600mA 3015 3mm - 3mm 1.5mm - 3 x 3 x 1.5mm - ±20% 1.04Ω WE-MAPI Composite Iron Powder
RS Stock No. 163-4985
Mfr. Part No.74438335220
MYR6,048.50
1 Reel of 1000
Reel(s)
22 μH 600mA 3015 3mm - 3mm 1.5mm - 3 x 3 x 1.5mm - ±20% 1.04Ω WE-MAPI Composite Iron Powder
RS Stock No. 816-4931
Mfr. Part No.7443643300
MYR40.46
Each
units
33 μH 30A 2818 28.5mm - 19.5mm 18.5mm - 28.5 x 19.5 x 18.5mm Yes ±15% 2.4mΩ WE-HCF MnZn
RS Stock No. 163-5518
Mfr. Part No.7443643300
MYR42.582
Each (In a Tray of 30)
units
33 μH 30A 2818 28.5mm - 19.5mm 18.5mm - 28.5 x 19.5 x 18.5mm Yes ±15% 2.4mΩ WE-HCF MnZn
RS Stock No. 163-4839
Mfr. Part No.744065121
MYR4,996.58
1 Reel of 1000
Reel(s)
120 μH 900mA 1028 10mm - 2.8mm 10mm - 10 x 10 x 2.8mm Yes ±30% 560mΩ WE-TPC Ferrite
RS Stock No. 800-8080
Mfr. Part No.744065121
MYR7.49
Each
units
120 μH 900mA 1028 10mm - 2.8mm 10mm - 10 x 10 x 2.8mm Yes ±30% 560mΩ WE-TPC Ferrite
RS Stock No. 163-3279
Mfr. Part No.74457115
MYR11.536
Each (On a Reel of 250)
units
15 μH 5A - 22mm - 15mm 7mm - 22 x 15 x 7mm No ±15% 35mΩ WE-PD4 Ferrite
RS Stock No. 500-3228
Mfr. Part No.744252220
MYR12.124
Each (In a Pack of 5)
units
22 μH 700mA - 9.2mm - 6.6mm 2.5mm - 9.2 x 6.6 x 2.5mm - -30 → +50% 140mΩ WE-SL3 Ferrite
RS Stock No. 163-3656
Mfr. Part No.744252220
MYR16,764.76
1 Reel of 1500
Reel(s)
22 μH 700mA - 9.2mm - 6.6mm 2.5mm - 9.2 x 6.6 x 2.5mm - -30 → +50% 140mΩ WE-SL3 Ferrite
RS Stock No. 396-3415
Mfr. Part No.74457115
MYR7.79
Each (In a Pack of 2)
units
15 μH 5A - 22mm - 15mm 7mm - 22 x 15 x 7mm No ±15% 35mΩ WE-PD4 Ferrite
RS Stock No. 744-4845
Mfr. Part No.744066680
MYR11.868
Each (In a Bag of 5)
units
68 μH 1.5A 1038 10mm - 10mm 3.8mm - 10 x 10 x 3.8mm Yes ±30% 216mΩ WE-TPC Ferrite
RS Stock No. 163-4049
Mfr. Part No.744066680
MYR7.207
Each (On a Reel of 800)
units
68 μH 1.5A 1038 10mm - 10mm 3.8mm - 10 x 10 x 3.8mm Yes ±30% 216mΩ WE-TPC Ferrite
RS Stock No. 163-5051
Mfr. Part No.744774133
MYR9,861.66
1 Reel of 1500
Reel(s)
33 μH 1.09A 5848 5.8mm - 5.2mm 4.5mm - 5.8 x 5.2 x 4.5mm No ±15% 230mΩ - -
RS Stock No. 163-3770
Mfr. Part No.74477810
MYR7,588.87
1 Reel of 1000
Reel(s)
10 μH 1.38A - 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 72mΩ WE-PD Ferrite
RS Stock No. 798-1767
Mfr. Part No.744774133
MYR6.24
Each
units
33 μH 1.09A 5848 5.8mm - 5.2mm 4.5mm - 5.8 x 5.2 x 4.5mm No ±15% 230mΩ - -
RS Stock No. 617-1495
Mfr. Part No.74477810
MYR10.61
Each
units
10 μH 1.38A - 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 72mΩ WE-PD Ferrite
RS Stock No. 144-9822
Mfr. Part No.744226
MYR5.498
Each (On a Reel of 1000)
units
10 μH 1.6A - 9.2mm - 6mm 5mm - 9.2 x 6 x 5mm - ±30% 80mΩ WE-SL2 Ferrite
RS Stock No. 367-5045
Mfr. Part No.744226
MYR10.79
Each
units
10 μH 1.6A - 9.2mm - 6mm 5mm - 9.2 x 6 x 5mm - ±30% 80mΩ WE-SL2 Ferrite
RS Stock No. 163-4865
Mfr. Part No.7440690068
MYR5.362
Each (On a Reel of 550)
units
6.8 μH 1.75A 8015 8mm - 1.35mm 8mm - 8 x 8 x 1.35mm Yes ±20% 110mΩ WE-TPC Ferrite
RS Stock No. 163-4810
Mfr. Part No.744043331
MYR4.264
Each (On a Reel of 500)
units
330 μH 285mA 4828 4.8mm - 2.8mm 4.8mm - 4.8 x 4.8 x 2.8mm Yes ±30% 1.7Ω WE-TPC Ferrite