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. 167-0594
Mfr. Part No.DFE201610P-1R5M=P2
BrandToko
TWD5.70
Each (On a Reel of 3000)
units
1.5 μH 2.8A 2016 2mm - 1.6mm 1mm - 2 x 1.6 x 1mm Yes - 110mΩ DFE201610P Powdered Iron
RS Stock No. 106-5318
Mfr. Part No.LQH32PN1R0NNCL
BrandMurata
TWD16.10
Each (In a Pack of 20)
units
1 μH 3A 3225 3.2mm - 2.5mm 1.55mm - 3.2 x 2.5 x 1.55mm Yes ±30% 36mΩ LQH32PN_NC Ferrite
RS Stock No. 772-9739
Mfr. Part No.SRN4018-680M
BrandBourns
TWD8.50
Each (In a Bag of 10)
units
68 μH 500mA rms - 4mm - 4mm 1.8mm - 4 x 4 x 1.8mm Yes ±20% 1.128Ω SRN4018 Ferrite
RS Stock No. 532-2670
Mfr. Part No.36501J3N9JTDG
TWD6.00
Each (In a Pack of 10)
units
3.9 nH 700mA 0603 (1608M) 1.8mm - 1.12mm 1.02mm - 1.8 x 1.12 x 1.02mm - ±5% 80mΩ 3650 -
RS Stock No. 166-9799
Mfr. Part No.LQH32PN1R0NNCL
BrandMurata
TWD6.20
Each (On a Reel of 2000)
units
1 μH 3A 3225 3.2mm - 2.5mm 1.55mm - 3.2 x 2.5 x 1.55mm Yes ±30% 36mΩ LQH32PN_NC Ferrite
RS Stock No. 813-5700
Mfr. Part No.SRN5040-470M
BrandBourns
TWD9.80
Each (In a Bag of 10)
units
47 μH 900mA - 5mm - 5mm 4mm - 5 x 5 x 4mm Yes ±20% 324mΩ SRN5040 Ferrite
RS Stock No. 173-1378
Mfr. Part No.IHLP2525CZER3R3M01
BrandVishay
TWD34.60
Each (On a Reel of 2000)
units
3.3 μH 6A 2225 (5664M) 6.86mm - 6.47mm 3mm - 6.86 x 6.47 x 3mm Yes ±20% 30mΩ IHLP Metal Composite
RS Stock No. 169-9637
Mfr. Part No.DR127-330-R
TWD48.00
Each (On a Reel of 350)
units
33 μH 6.22A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 60mΩ DR73/74/125/127 Ferrite
RS Stock No. 166-9683
Mfr. Part No.LQH31MN101K03L
BrandMurata
TWD9.20
Each (On a Reel of 2000)
units
100 μH 45mA 1206 (3216M) 3.2mm - 1.6mm 1.8mm - 3.2 x 1.6 x 1.8mm - ±10% 12Ω LQH31MN -
RS Stock No. 172-9568
Mfr. Part No.SRN4018-680M
BrandBourns
TWD4.60
Each (On a Reel of 3000)
units
68 μH 500mA rms - 4mm - 4mm 1.8mm - 4 x 4 x 1.8mm Yes ±20% 1.128Ω SRN4018 Ferrite
RS Stock No. 469-2899
Mfr. Part No.LQH31MN101K03L
BrandMurata
TWD24.00
Each (In a Pack of 20)
units
100 μH 45mA 1206 (3216M) 3.2mm - 1.6mm 1.8mm - 3.2 x 1.6 x 1.8mm - ±10% 12Ω LQH31MN -
RS Stock No. 748-7097
Mfr. Part No.IHLP2525CZER3R3M01
BrandVishay
TWD82.00
Each (In a Bag of 5)
units
3.3 μH 6A 2225 (5664M) 6.86mm - 6.47mm 3mm - 6.86 x 6.47 x 3mm Yes ±20% 30mΩ IHLP-2525BD-01 Metal Composite
RS Stock No. 168-0340
Mfr. Part No.36501J3N9JTDG
TWD5.30
Each (On a Reel of 1000)
units
3.9 nH 700mA 0603 (1608M) 1.8mm - 1.12mm 1.02mm - 1.8 x 1.12 x 1.02mm - ±5% 80mΩ 3650 -
RS Stock No. 172-8615
Mfr. Part No.SRF0504-191Y
BrandBourns
TWD20.00
Each (On a Reel of 1000)
units
600 nH 5A 0504 5mm - 5.2mm 4.7mm - 5 x 5.2 x 4.7mm Yes ±35% - SRF0504 Ferrite
RS Stock No. 770-1031
Mfr. Part No.DR127-330-R
TWD74.20
Each (In a Bag of 5)
units
33 μH 6.22A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 60mΩ DR73/74/125/127 Ferrite
RS Stock No. 604-2628
Mfr. Part No.NL453232T-100J-PF
BrandTDK
TWD12.30
Each (In a Pack of 10)
units
10 μH 250mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm - ±5% 1.6Ω - -
RS Stock No. 748-6896
Mfr. Part No.IHLP2020CZERR82M01
BrandVishay
TWD66.80
Each (In a Bag of 5)
units
820 nH 9.3A 2020 5.49mm - 5.18mm 3mm - 5.49 x 5.18 x 3mm Yes ±20% 11.9mΩ IHLP-2020AB-01 Metal Composite
RS Stock No. 883-0092
Mfr. Part No.744762218A
TWD14.70
Each (In a Bag of 10)
units
180 nH 800mA 1008A 2.5mm - 2mm 1.6mm - 2.5 x 2 x 1.6mm Yes - 330mΩ WE-KI Ceramic
RS Stock No. 171-0816
Mfr. Part No.CLF12555T-330M-D
BrandTDK
TWD37.70
Each (On a Reel of 500)
units
33 μH 4A 12555 12.5mm - 12.1mm 5.5mm - 12.5 x 12.1 x 5.5mm Yes ±20% 80.4mΩ CLF Ferrite
RS Stock No. 163-5093
Mfr. Part No.7447779156
TWD54.10
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 -