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. 167-0606
Mfr. Part No.DFE252012P-2R2M=P2
BrandToko
TWD5.00
Each (On a Reel of 3000)
units
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. 748-6827
Mfr. Part No.IHLP2020BZER1R0M01
BrandVishay
TWD44.80
Each (In a Bag of 5)
units
1 μH 7A 2020 5.49mm - 5.18mm 2mm - 5.49 x 5.18 x 2mm Yes ±20% 20mΩ IHLP Metal Composite
RS Stock No. 124-5581
BrandRS PRO
TWD22.00
Each (In a Pack of 20)
units
150 μH 1A 25 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes - 230mΩ - -
RS Stock No. 725-5862
Mfr. Part No.SRU1048-3R0Y
BrandBourns
TWD29.00
Each
units
3 μH 6.2A 1048 10mm - 10mm 4.8mm - 10 x 10 x 4.8mm Yes ±30% 7.2mΩ SRU1048 Ferrite
RS Stock No. 748-7079
Mfr. Part No.IHLP2525CZERR68M01
BrandVishay
TWD50.20
Each (In a Bag of 5)
units
680 nH 15.5A 2225 (5664M) 6.86mm - 6.47mm 3mm - 6.86 x 6.47 x 3mm Yes ±20% 5.5mΩ IHLP Metal Composite
RS Stock No. 144-9817
Mfr. Part No.742792114
TWD5.70
Each (On a Reel of 3000)
units
- 3mA 1206 (3216M) 3.2mm - 1.6mm 1.1mm - 3.2 x 1.6 x 1.1mm - ±25% 30mΩ WE-CBF Ferrite
RS Stock No. 169-3752
BrandRS PRO
TWD19.60
Each (On a Reel of 600)
units
33 μH 2.1A 25 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 57mΩ - -
RS Stock No. 172-8540
Mfr. Part No.SRR1280-331K
BrandBourns
TWD22.30
Each (On a Reel of 400)
units
330 μH 1.1A - 12.5mm - 12.5mm 7.5mm - 12.5 x 12.5 x 7.5mm Yes ±10% - SRR1280 Ferrite
RS Stock No. 163-3736
Mfr. Part No.744760022A
TWD8.70
Each (On a Reel of 2000)
units
2.2 nH 800mA 0805 (2012M) 2mm - 1.25mm 1.2mm - 2 x 1.25 x 1.2mm - ±0.2nH 60mΩ WE-KI Ceramic
RS Stock No. 604-4618
Mfr. Part No.SLF7028T-100M1R1-PF
BrandTDK
TWD25.50
Each (In a Pack of 10)
units
10 μH 1.1A - 7mm - 7mm 2.8mm - 7 x 7 x 2.8mm Yes ±20% 83mΩ - -
RS Stock No. 789-7154
Mfr. Part No.7447779156
TWD74.00
Each
units
56 μH 930mA - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 350mΩ WE-PD -
RS Stock No. 358-6535
Mfr. Part No.742792114
TWD8.30
Each (In a Pack of 10)
units
- 3mA 1206 (3216M) 3.2mm - 1.6mm 1.1mm - 3.2 x 1.6 x 1.1mm No ±25% 30mΩ WE-CBF Ferrite
RS Stock No. 169-3442
BrandRS PRO
TWD11.80
Each (On a Reel of 600)
units
150 μH 1A 25 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes - 230mΩ - -
RS Stock No. 172-9664
Mfr. Part No.SRR6028-100Y
BrandBourns
TWD13.10
Each (On a Reel of 500)
units
10 μH 2A 6028 6.8mm - 6.8mm 2.8mm - 6.8 x 6.8 x 2.8mm Yes ±30% 65mΩ SRR6028 Ferrite
RS Stock No. 163-5093
Mfr. Part No.7447779156
TWD52.60
Each (On a Reel of 1000)
units
56 μH 930mA - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 350mΩ WE-PD -
RS Stock No. 173-3708
Mfr. Part No.IHLP2525CZERR68M01
BrandVishay
TWD21.50
Each (On a Reel of 2000)
units
680 nH 15.5A 2225 (5664M) 6.86mm - 6.47mm 3mm - 6.86 x 6.47 x 3mm Yes ±20% 5.5mΩ IHLP Metal Composite
RS Stock No. 165-3151
Mfr. Part No.ACT45B-220-2P-TL
BrandTDK
TWD23.60
Each (On a Reel of 2500)
units
22 μH 200mA 1812 (4532M) 4.5mm - 3.2mm 2.8mm - 4.5 x 3.2 x 2.8mm Yes -30 → +50% ACT -
RS Stock No. 604-4719
Mfr. Part No.SLF7030T-150M1R0-PF
BrandTDK
TWD12.10
Each (In a Pack of 10)
units
15 μH 1A - 7mm - 7mm 3mm - 7 x 7 x 3mm Yes ±20% 84mΩ - -
RS Stock No. 125-3166
Mfr. Part No.DLW31SN900SQ2L
BrandMurata
TWD16.50
Each (On a Reel of 2000)
units
- 370mA 1206 (3216M) 3.2mm - 1.6mm 1.9mm - 3.2 x 1.6 x 1.9mm - ±25% 300mΩ DLW31S -
RS Stock No. 105-8574
Mfr. Part No.DFE252012P-2R2M=P2
BrandToko
TWD13.30
Each (In a Pack of 10)
units
2.2 μH 3.4A 2012 2.5mm - 2mm 1.2mm - 2.5 x 2 x 1.2mm Yes - 84mΩ DFE252012P Powered Iron