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. 163-9501
Mfr. Part No.36502A3N3JTDG
MYR0.68
Each (On a Reel of 2000)
units
3.3 nH 600mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 80mΩ 3650 -
RS Stock No. 188-8823
Mfr. Part No.DLW5BSN152SQ2L
BrandMurata
MYR9.419
Each (In a Pack of 10)
units
- 1A 2020 5mm - 5mm 4.5mm - 5 x 5 x 4.5mm - - 100mΩ DLW5AH/5BS Ferrite
RS Stock No. 532-3156
Mfr. Part No.36502A3N3JTDG
MYR1.765
Each (In a Pack of 10)
units
3.3 nH 600mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 80mΩ 3650 -
RS Stock No. 168-0260
Mfr. Part No.36502A24NJTDG
MYR1.765
Each (In a Box of 12)
units
24 nH 500mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 220mΩ 3650 -
RS Stock No. 169-9621
Mfr. Part No.DR125-330-R
MYR5.457
Each (On a Reel of 600)
units
33 μH 3.84A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 50.5mΩ DR73/74/125/127 Ferrite
RS Stock No. 163-5051
Mfr. Part No.744774133
MYR4.763
Each (On a Reel of 1500)
units
33 μH 1.09A 5848 5.8mm - 5.2mm 4.5mm - 5.8 x 5.2 x 4.5mm No ±15% 230mΩ - -
RS Stock No. 532-3263
Mfr. Part No.36502A24NJTDG
MYR1.36
Each (In a Pack of 10)
units
24 nH 500mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 220mΩ 3650 -
RS Stock No. 172-9610
Mfr. Part No.SDR0403-5R6ML
BrandBourns
MYR1.465
Each (On a Reel of 2000)
units
5.6 μH 1.6A SMD 4.5mm - 4mm 3.2mm 4.5mm 4.5 Dia. x 3.2mm - ±20% 100mΩ SDR0403 Ferrite DR
RS Stock No. 727-1593
Mfr. Part No.SDR0403-5R6ML
BrandBourns
MYR1.68
Each (In a Pack of 5)
units
5.6 μH 2.4A - 4.5mm - 4mm 3.2mm - 4.5 x 4 x 3.2mm - ±20% 100mΩ SDR0403 Ferrite
RS Stock No. 871-2076
Mfr. Part No.LQM18NN1R5K00D
BrandMurata
MYR0.818
Each (In a Bag of 25)
units
1.5 μH 25mA 1608 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm Yes - 800mΩ LQM18N Ferrite
RS Stock No. 692-0610
Mfr. Part No.SRU1028-470Y
BrandBourns
MYR2.82
Each
units
47 μH 1.3A - 10mm - 10mm 2.8mm - 10 x 10 x 2.8mm Yes ±30% 167mΩ SRU1028 Ferrite
RS Stock No. 172-7164
Mfr. Part No.SRU1028-470Y
BrandBourns
MYR2.818
Each (On a Reel of 1000)
units
47 μH 1.3A - 10mm - 10mm 2.8mm - 10 x 10 x 2.8mm Yes ±30% - SRU1028 Ferrite
RS Stock No. 500-2994
Mfr. Part No.744231121
MYR4.34
Each (In a Pack of 5)
units
- 370mA 0805 (2012M) 2mm - 1.2mm 1.2mm - 2 x 1.2 x 1.2mm - ±25% 300mΩ WE-CNSW SMD Ferrite
RS Stock No. 169-9648
Mfr. Part No.DR73-101-R
MYR2.612
Each (On a Reel of 1350)
units
100 μH 790mA 73 7.6mm - 7.6mm 3.55mm - 7.6 x 7.6 x 3.55mm Yes ±20% 527mΩ DR73/74/125/127 Ferrite
RS Stock No. 871-2051
Mfr. Part No.LQH5BPN100MT0L
BrandMurata
MYR1.81
Each (In a Bag of 10)
units
10 μH 1.6 (Temperature Rise) A, 2 (Inductance Change) A 5050 5mm - 5mm 2mm - 5 x 5 x 2mm Yes - 106mΩ LQH5BPN Ferrite
RS Stock No. 170-3284
Mfr. Part No.NL453232T-470J-PF
BrandTDK
MYR0.924
Each (On a Reel of 500)
units
47 μH 140mA 4532 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm - - NL Ferrite
RS Stock No. 172-8422
Mfr. Part No.SRN8040-330M
BrandBourns
MYR1.02
Each (On a Reel of 1000)
units
33 μH 1.9A 8040 8mm - 8mm 4mm - 8 x 8 x 4mm Yes ±20% - SRN8040 Ferrite
RS Stock No. 724-1677
Mfr. Part No.DLW21SN900SQ2L
BrandMurata
MYR2.26
Each (In a Pack of 10)
units
- 330mA 0805 (2012M) 2mm - 1.2mm 1.2mm - 2 x 1.2 x 1.2mm - ±25% 350mΩ DLW21S -
RS Stock No. 748-7423
Mfr. Part No.IHLP5050FDER1R0M01
BrandVishay
MYR18.76
Each
units
1 μH 32A 5050 13.2mm - 12.9mm 6.5mm - 13.2 x 12.9 x 6.5mm Yes ±20% 2mΩ IHLP Metal Composite
RS Stock No. 863-0791
Mfr. Part No.74438336010
MYR5.93
Each (In a Bag of 5)
units
1 μH 4A 3020 3mm - 3mm 2mm - 3 x 3 x 2mm Yes ±20% 32mΩ WE-MAPI Magnetic Iron Alloy