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. 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. 693-4665
Mfr. Part No.SRR1280-331K
BrandBourns
TWD42.00
Each
units
330 μH 1.1A - 12.5mm - 12.5mm 7.5mm - 12.5 x 12.5 x 7.5mm Yes ±10% 600mΩ SRR1280 Ferrite
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. 172-9058
Mfr. Part No.IHLP2020BZER1R0M01
BrandVishay
TWD15.90
Each (On a Reel of 2000)
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. 604-4719
Mfr. Part No.SLF7030T-150M1R0-PF
BrandTDK
TWD31.80
Each (In a Pack of 10)
units
15 μH 1A - 7mm - 7mm 3mm - 7 x 7 x 3mm Yes ±20% 84mΩ - -
RS Stock No. 167-4156
Mfr. Part No.LQH2MCN220K02L
BrandMurata
TWD4.00
Each (On a Reel of 3000)
units
22 μH 185mA 0806 2mm - 1.6mm 0.9mm - 2 x 1.6 x 0.9mm - ±10% 2.73Ω LQH2MC_02 Ferrite
RS Stock No. 737-3207
Mfr. Part No.744760022A
TWD13.40
Each (In a Bag of 10)
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. 923-6340
Mfr. Part No.74479876210C
TWD19.30
Each (In a Pack of 50)
units
1 μH 1.8A 0806 (2016M) 2mm - 1.6mm 1mm - 2 x 1.6 x 1mm Yes - 75mΩ WE-PMI -
RS Stock No. 163-8266
Mfr. Part No.74479876210C
TWD12.20
Each (On a Reel of 3000)
units
1 μH 1.8A 0806 (2016M) 2mm - 1.6mm 1mm - 2 x 1.6 x 1mm Yes - 75mΩ WE-PMI -
RS Stock No. 816-4931
Mfr. Part No.7443643300
TWD317.00
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. 144-9807
Mfr. Part No.7447918
TWD9.80
Each (On a Reel of 3000)
units
10 μH 25mA 1206 (3216M) 3.2mm - 1.6mm 1.1mm - 3.2 x 1.6 x 1.1mm Yes ±10% 600mΩ WE-MI Ferrite
RS Stock No. 169-3770
BrandRS PRO
TWD13.70
Each (On a Reel of 400)
units
100 μH 1.7A 27 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 220mΩ - -
RS Stock No. 167-4842
Mfr. Part No.LQW18AN3N6C00D
BrandMurata
TWD2.00
Each (On a Reel of 4000)
units
3.6 nH 850mA 0603 (1608M) 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm Yes ±0.2nH 59mΩ LQW Non-Magnetic Core
RS Stock No. 604-2662
Mfr. Part No.NL453232T-121J-PF
BrandTDK
TWD10.10
Each (In a Pack of 10)
units
120 μH 110mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm - ±5% - -
RS Stock No. 367-5095
Mfr. Part No.744777133
TWD75.00
Each
units
33 μH 1.13A - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 170mΩ WE-PD Ferrite
RS Stock No. 604-1451
Mfr. Part No.MLK1005S8N2DT
BrandTDK
TWD1.40
Each (In a Pack of 10)
units
8.2 nH 350mA 0402 (1005M) 1mm - 0.5mm 0.5mm - 1 x 0.5 x 0.5mm - ±0.5nH 380mΩ - -
RS Stock No. 614-2863
Mfr. Part No.VLCF5020T-220MR75-1
BrandTDK
TWD37.20
Each (In a Pack of 5)
units
22 μH 1A - 5.3mm - 5mm 2mm - 5.3 x 5 x 2mm Yes ±20% 496mΩ VLCF -
RS Stock No. 173-1534
Mfr. Part No.IHLP6767GZER220M11
BrandVishay
TWD83.10
Each (On a Reel of 200)
units
22 μH 12A 6767 17.15mm - 17.15mm 7mm - 17.15 x 17.15 x 7mm Yes ±20% 21mΩ IHLP Metal Composite
RS Stock No. 163-7961
Mfr. Part No.744762256A
TWD9.40
Each (On a Reel of 2000)
units
560 nH 310mA 1008A 2.5mm - 2mm 1.6mm - 2.5 x 2 x 1.6mm Yes - 1.5Ω WE-KI Ceramic
RS Stock No. 883-0102
Mfr. Part No.744762222A
TWD14.30
Each (In a Bag of 10)
units
220 nH 800mA 1008A 2.5mm - 2mm 1.6mm - 2.5 x 2 x 1.6mm Yes - 450mΩ WE-KI Ceramic