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. 916-4289
Mfr. Part No.VLF302515MT-2R2M
BrandTDK
$2.674
Each (In a Pack of 5)
units
2.2 μH 2.71A 302515 3mm - 2.5mm 1.5mm - 3 x 2.5 x 1.5mm Yes ±20% 50mΩ VLF-M Ferrite
RS Stock No. 170-3318
Mfr. Part No.VLF302515MT-2R2M
BrandTDK
$1.061
Each (On a Reel of 2000)
units
2.2 μH 2.71A 302515 3mm - 2.5mm 1.5mm - 3 x 2.5 x 1.5mm Yes ±20% 50mΩ VLF-M Ferrite
RS Stock No. 144-9828
Mfr. Part No.744031004
$1.218
Each (On a Reel of 1000)
units
4.7 μH 1.2A 3816 3.8mm - 3.8mm 1.65mm - 3.8 x 3.8 x 1.65mm Yes ±30% 105mΩ WE-TPC Ferrite
RS Stock No. 617-0896
Mfr. Part No.744031004
$2.72
Each
units
4.7 μH 1.2A 3816 3.8mm - 3.8mm 1.65mm - 3.8 x 3.8 x 1.65mm Yes ±30% 105mΩ WE-TPC Ferrite
RS Stock No. 181-4319
Mfr. Part No.SDR0805-331KL
BrandBourns
$0.605
Each (On a Reel of 100)
units
330 μH 400mA SMD - - - 5.3mm 7.8mm 7.8 Dia. x 5.3mm - ±10% 1.26Ω SDR0805 Ferrite DR
RS Stock No. 181-4259
Mfr. Part No.SDR0805-331KL
BrandBourns
$0.413
Each (On a Reel of 1000)
units
330 μH 400mA SMD - - - 5.3mm 7.8mm 7.8 Dia. x 5.3mm - ±10% 1.26Ω SDR0805 Ferrite DR
RS Stock No. 736-1295
Mfr. Part No.SDR0805-331KL
BrandBourns
$0.827
Each (In a Bag of 10)
units
330 μH 580mA - - - - 5.3mm 7.8mm 7.8 (Dia.) x 5.3mm - ±10% 1.26Ω SDR0805 Ferrite
RS Stock No. 729-6567
Mfr. Part No.SRR1005-151K
BrandBourns
$1.266
Each (In a Pack of 5)
units
150 μH 660mA 1005 12.7mm - 10mm 5.2mm - 12.7 x 10 x 5.2mm Yes ±10% 520mΩ SRR1005 Ferrite
RS Stock No. 727-2268
Mfr. Part No.SRR1280-4R7Y
BrandBourns
$1.85
Each (In a Pack of 5)
units
4.7 μH 8.8A 1280 12.5mm - 12.5mm 7.5mm - 12.5 x 12.5 x 7.5mm Yes ±30% 15.5mΩ SRR1280 Ferrite
RS Stock No. 172-7175
Mfr. Part No.SRR1005-151K
BrandBourns
$0.71
Each (On a Reel of 600)
units
150 μH 660mA 1005 12.7mm - 10mm 5.2mm - 12.7 x 10 x 5.2mm Yes ±10% - SRR1005 Ferrite
RS Stock No. 729-6523
Mfr. Part No.SDR1005-470KL
BrandBourns
$1.01
Each (In a Pack of 5)
units
47 μH 1.4A 1005 12.7mm - 10mm 5mm - 12.7 x 10 x 5mm - ±10% 190mΩ SDR1005 Ferrite
RS Stock No. 172-9687
Mfr. Part No.SDR1005-470KL
BrandBourns
$0.537
Each (On a Reel of 600)
units
47 μH 1.4A 1005 12.7mm - 10mm 5mm - 12.7 x 10 x 5mm - ±10% 190mΩ SDR1005 Ferrite
RS Stock No. 172-8552
Mfr. Part No.SRR1280-4R7Y
BrandBourns
$0.892
Each (On a Reel of 400)
units
4.7 μH 8.8A 1280 12.5mm - 12.5mm 7.5mm - 12.5 x 12.5 x 7.5mm Yes ±30% - SRR1280 Ferrite
RS Stock No. 878-8657
Mfr. Part No.LQH2HPN100MJRL
BrandMurata
$0.631
Each (In a Bag of 10)
units
10 μH 830mA 2520 2.5mm - 2mm 1.1mm - 2.5 x 2 x 1.1mm Yes - 450mΩ LQH Ferrite
RS Stock No. 167-5025
Mfr. Part No.LQH2HPN100MJRL
BrandMurata
$0.271
Each (On a Reel of 2000)
units
10 μH 830mA 2520 2.5mm - 2mm 1.1mm - 2.5 x 2 x 1.1mm Yes - 450mΩ LQH Ferrite
RS Stock No. 172-8355
Mfr. Part No.SRN4018-4R7M
BrandBourns
$0.28
Each (On a Reel of 3000)
units
4.7 μH 1.9A rms - 4mm - 4mm 1.8mm - 4 x 4 x 1.8mm Yes ±20% - SRN4018 Ferrite
RS Stock No. 772-9714
Mfr. Part No.SRN4018-4R7M
BrandBourns
$0.483
Each (In a Bag of 10)
units
4.7 μH 1.9A rms - 4mm - 4mm 1.8mm - 4 x 4 x 1.8mm Yes ±20% 84mΩ SRN4018 Ferrite
RS Stock No. 163-9511
Mfr. Part No.36502AR47JTDG
$0.262
Each (On a Reel of 2000)
units
470 nH 220mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 1.7Ω 3650 -
RS Stock No. 532-3572
Mfr. Part No.36502AR47JTDG
$0.564
Each (In a Pack of 10)
units
470 nH 220mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 1.7Ω 3650 -
RS Stock No. 496-2621
Mfr. Part No.B82789C0513N002
BrandEPCOS
$2.94
Each (In a Pack of 5)
units
51 μH 250mA 1812 (4532M) 5.2mm - 3.2mm 3mm - 5.2 x 3.2 x 3mm - -30 → +50% 550mΩ B82789 Ferrite