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. 163-3235
Mfr. Part No.744231121
MYR2.42
Each (On a Reel of 2000)
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. 813-5674
Mfr. Part No.SRN5040-4R7M
BrandBourns
MYR1.01
Each (In a Bag of 10)
units
4.7 μH 3.1A - 5mm - 5mm 4mm - 5 x 5 x 4mm Yes ±20% 35mΩ SRN5040 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. 770-1725
Mfr. Part No.DRA125-820-R
MYR8.084
Each (In a Bag of 5)
units
82 μH 2.406A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 135mΩ DRA Ferrite
RS Stock No. 163-7441
Mfr. Part No.74438336010
MYR3.80
Each (On a Reel of 1000)
units
1 μH 4A 3020 3mm - 3mm 2mm - 3 x 3 x 2mm Yes ±20% 32mΩ WE-MAPI Magnetic Iron Alloy
RS Stock No. 863-0791
Mfr. Part No.74438336010
MYR5.812
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
RS Stock No. 163-3658
Mfr. Part No.744253200
MYR7.28
Each (On a Reel of 1500)
units
20 μH 500mA - 9.2mm - 6.6mm 2.5mm - 9.2 x 6.6 x 2.5mm - -30 → +50% 160mΩ WE-SL3 Ferrite
RS Stock No. 163-8188
Mfr. Part No.744913050
MYR2.381
Each (On a Reel of 500)
units
5 nH 4A 3136 3.68mm - 3.05mm 3.18mm - 3.68 x 3.05 x 3.18mm - - 1.8mΩ WE-CAIR -
RS Stock No. 692-7728
Mfr. Part No.CM322522-2R2KL
BrandBourns
MYR1.039
Each (In a Pack of 10)
units
2.2 μH 190mA 1210 (3225M) 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - ±10% 950mΩ CM32 Ferrite
RS Stock No. 108-4741
Mfr. Part No.SLF12555T-100M3R4-PF
BrandTDK
MYR3.046
Each (On a Reel of 500)
units
10 μH 4.3A - 12.5mm - 12.5mm 5.5mm - 12.5 x 12.5 x 5.5mm Yes ±20% 21.5mΩ SLF Ferrite
RS Stock No. 500-2994
Mfr. Part No.744231121
MYR4.324
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. 500-3212
Mfr. Part No.744253200
MYR10.378
Each (In a Pack of 5)
units
20 μH 500mA - 9.2mm - 6.6mm 2.5mm - 9.2 x 6.6 x 2.5mm - -30 → +50% 160mΩ WE-SL3 Ferrite
RS Stock No. 167-4938
Mfr. Part No.LQH5BPN100MT0L
BrandMurata
MYR0.943
Each (On a Reel of 500)
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. 163-5087
Mfr. Part No.7447779115
MYR6.34
Each (On a Reel of 1000)
units
15 μH 1.6A - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 81mΩ WE-PD -
RS Stock No. 725-4829
Mfr. Part No.LQG15HN10NJ02D
BrandMurata
MYR0.249
Each (In a Pack of 10)
units
10 nH 300mA 0402 (1005M) - - - - - 1 x 0.5 x 0.5mm - ±5% 350mΩ LQG15H -
RS Stock No. 172-9772
Mfr. Part No.SRR1210-680M
BrandBourns
MYR2.34
Each (On a Reel of 250)
units
68 μH 3A 1210 (3225M) 12mm - 12mm 10mm - 12 x 12 x 10mm Yes ±20% 102mΩ SRR1210 Ferrite
RS Stock No. 770-1072
Mfr. Part No.DR73-101-R
MYR5.222
Each (In a Bag of 5)
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. 169-9648
Mfr. Part No.DR73-101-R
MYR3.687
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. 532-3976
Mfr. Part No.36502CR36JTDG
MYR1.36
Each (In a Pack of 10)
units
360 nH 470mA 1008 2.92mm - 2.79mm 2.1mm - 2.92 x 2.79 x 2.1mm - ±5% 1.1Ω 3650 -
RS Stock No. 167-5680
Mfr. Part No.LQG15HN10NJ02D
BrandMurata
MYR0.077
Each (On a Reel of 10000)
units
10 nH 300mA 0402 (1005M) - - - - - 1 x 0.5 x 0.5mm - ±5% 350mΩ LQG15H -
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