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. 839-0929
Mfr. Part No.LQM21PN2R2NGCD
BrandMurata
€0.281
Each (In a Bag of 10)
units
2.2 μH 800mA 0805 (2012M) 2mm - 1.25mm 0.9mm - 2 x 1.25 x 0.9mm Yes ±30% 230mΩ LQM Ferrite Core
RS Stock No. 166-9798
Mfr. Part No.LQH32PN100MNCL
BrandMurata
€0.102
Each (On a Reel of 2000)
units
10 μH 1A 3225 3.2mm - 2.5mm 1.55mm - 3.2 x 2.5 x 1.55mm Yes ±20% 295mΩ LQH32PN_NC Ferrite
RS Stock No. 748-6701
Mfr. Part No.IHLP1212BZERR22M11
BrandVishay
€0.42
Each (In a Bag of 5)
units
220 nH 6.5A 1212 3.6mm - 3mm 2mm - 3.6 x 3 x 2mm Yes ±20% 11.4mΩ IHLP-1212BZ-11 Metal Composite
RS Stock No. 163-3578
Mfr. Part No.744031101
€0.72
Each (On a Reel of 1000)
units
100 μH 250mA - 3.8mm - 3.8mm 1.65mm - 3.8 x 3.8 x 1.65mm Yes ±30% 2.4Ω WE-TPC Ferrite
RS Stock No. 831-9232
Mfr. Part No.ACM12V-701-2PL-TL00
BrandTDK
€2.31
Each
units
- 8A 12V 12mm - 11mm 6mm - 12 x 11 x 6mm Yes - 6mΩ ACM-V Ferrite
RS Stock No. 173-1371
Mfr. Part No.IHLP2020CZER100M11
BrandVishay
€0.638
Each (On a Reel of 2000)
units
10 μH 2.75A 2020 5.49mm - 5.18mm 3mm - 5.49 x 5.18 x 3mm Yes ±20% 131.9mΩ IHLP Metal Composite
RS Stock No. 172-7279
Mfr. Part No.SRP1770TA-1R5M
BrandBourns
€1.624
Each (On a Reel of 300)
units
1.5 μH 47A - 17.3mm AEC-Q200 6.7mm 16.9mm - 17.3 x 6.7 x 16.9mm Yes - - SRP1770TA Carbonyl Powder
RS Stock No. 724-2901
Mfr. Part No.LQW18AN12NG00D
BrandMurata
€0.144
Each (In a Pack of 10)
units
12 nH 600mA 0603 (1608M) 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±2% 130mΩ LQW18A -
RS Stock No. 786-6860
Mfr. Part No.LQH32PN150MN0L
BrandMurata
€0.321
Each (In a Bag of 10)
units
15 μH 520mA 1210 (3225M) 3.2mm - 2.5mm 1.55mm - 3.2 x 2.5 x 1.55mm Yes ±20% 684mΩ LQH32P Ferrite
RS Stock No. 496-1319
Mfr. Part No.B82442H1224K000
BrandEPCOS
€1.148
Each (In a Pack of 5)
units
220 μH 240mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm - ±10% 2.72Ω SIMID Ferrite
RS Stock No. 163-4225
Mfr. Part No.744771147
€1.296
Each (On a Reel of 500)
units
47 μH 2.6A 1260 12mm - 12mm 6mm - 12 x 12 x 6mm Yes ±20% 75mΩ WE-PD Ferrite
RS Stock No. 167-4076
Mfr. Part No.LQH32PN150MN0L
BrandMurata
€0.118
Each (On a Reel of 2000)
units
15 μH 520mA 1210 (3225M) 3.2mm - 2.5mm 1.55mm - 3.2 x 2.5 x 1.55mm Yes ±20% 684mΩ LQH32P Ferrite
RS Stock No. 108-4722
Mfr. Part No.SLF10145T-101M1R0-PF
BrandTDK
€0.448
Each (On a Reel of 500)
units
100 μH 1A - 10.1mm - 10.1mm 4.5mm - 10.1 x 10.1 x 4.5mm - ±20% 200mΩ SLF -
RS Stock No. 693-4356
Mfr. Part No.CM453232-4R7KL
BrandBourns
€0.29
Each (In a Pack of 10)
units
4.7 μH 315mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm - ±10% CM45 Ferrite
RS Stock No. 172-9644
Mfr. Part No.SRN8040-101M
BrandBourns
€0.232
Each (On a Reel of 1000)
units
100 μH 1A 8040 8mm - 8mm 4mm - 8 x 8 x 4mm Yes ±20% 400mΩ SRN8040 Ferrite
RS Stock No. 741-3302
Mfr. Part No.SLF10145T-101M1R0-PF
BrandTDK
€0.931
Each (In a Bag of 10)
units
100 μH 1A - 10.1mm - 10.1mm 4.5mm - 10.1 x 10.1 x 4.5mm - ±20% 200mΩ SLF -
RS Stock No. 144-9832
Mfr. Part No.7447709220
€1.671
Each (On a Reel of 250)
units
22 μH 5.3A - 12mm - 12mm - - 12 x 12 x 8mm Yes ±20% 28mΩ WE-PD Ferrite
RS Stock No. 106-5376
Mfr. Part No.LQW2BAS10NJ00L
BrandMurata
€0.174
Each (In a Pack of 20)
units
10 nH 600mA 2015 2.09mm - 1.53mm 1.42mm - 2.09 x 1.53 x 1.42mm - ±5% 100mΩ LQW2BAS_00 Non-Magnetic Core
RS Stock No. 163-4011
Mfr. Part No.744025100
€0.731
Each (On a Reel of 550)
units
10 μH 1.1A 2828 2.8mm - 2.8mm 2.8mm - 2.8 x 2.8 x 2.8mm Yes ±20% 190mΩ WE-TPC Ferrite
RS Stock No. 776-4035
Mfr. Part No.SRP6540-8R2M
BrandBourns
€0.876
Each (In a Bag of 5)
units
8.2 μH 4.5A - 7.2mm - 6.5mm 4mm - 7.2 x 6.5 x 4mm Yes ±20% 50.5mΩ SRP6540 Iron
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