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. 396-6010
Mfr. Part No.74456222
$3.53
Each (In a Pack of 2)
units
220 μH 900mA - 12.7mm - 10mm 5mm - 12.7 x 10 x 5mm No ±10% 780mΩ WE-PD4 Ferrite
RS Stock No. 172-9734
Mfr. Part No.SRU1048-101Y
BrandBourns
$1.073
Each (On a Reel of 600)
units
100 μH 1.2A - 10mm - 10mm 4.8mm - 10 x 10 x 4.8mm Yes ±30% 160mΩ SRU1048 Ferrite
RS Stock No. 169-9631
Mfr. Part No.DR127-101-R
$2.16
Each (On a Reel of 350)
units
100 μH 3.64A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 163mΩ DR73/74/125/127 Ferrite
RS Stock No. 748-6707
Mfr. Part No.IHLP1212BZER2R2M11
BrandVishay
$2.442
Each (In a Bag of 5)
units
2.2 μH 3A 1212 3.6mm - 3mm 2mm - 3.6 x 3 x 2mm Yes ±20% 46mΩ IHLP-1212BZ-11 Metal Composite
RS Stock No. 163-3666
Mfr. Part No.744272471
$3.663
Each (On a Reel of 800)
units
470 μH 1.6A - 10mm - 8.7mm 6.5mm - 10 x 8.7 x 6.5mm - ±40% 65mΩ WE-SL5 Ferrite
RS Stock No. 172-7132
Mfr. Part No.SRR4028-100Y
BrandBourns
$0.542
Each (On a Reel of 500)
units
10 μH 1.19A 4028 4.8mm - 4.8mm 2.8mm - 4.8 x 4.8 x 2.8mm Yes ±30% - SRR4028 Ferrite
RS Stock No. 727-2029
Mfr. Part No.SRR4028-100Y
BrandBourns
$1.018
Each (In a Pack of 5)
units
10 μH 1.19A 4028 4.8mm - 4.8mm 2.8mm - 4.8 x 4.8 x 2.8mm Yes ±30% 110mΩ SRR4028 Ferrite
RS Stock No. 604-4703
Mfr. Part No.SLF7030T-101MR35-PF
BrandTDK
$1.82
Each (In a Pack of 10)
units
100 μH 350mA - 7mm - 7mm 3mm - 7 x 7 x 3mm Yes ±20% 450mΩ - -
RS Stock No. 163-3272
Mfr. Part No.74456222
$2.684
Each (On a Reel of 600)
units
220 μH 900mA - 12.7mm - 10mm 5mm - 12.7 x 10 x 5mm No ±10% 780mΩ WE-PD4 Ferrite
RS Stock No. 532-3522
Mfr. Part No.36502AR33JTDG
$0.564
Each (In a Pack of 10)
units
330 nH 310mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 1.4Ω 3650 -
RS Stock No. 604-4163
Mfr. Part No.SLF12555T-681MR43-PF
BrandTDK
$2.764
Each (In a Pack of 5)
units
680 μH 430mA - 12.5mm - 12.5mm 5.5mm - 12.5 x 12.5 x 5.5mm Yes ±20% 760mΩ - -
RS Stock No. 495-8212
Mfr. Part No.B82462G4224M000
BrandEPCOS
$2.596
Each (In a Pack of 5)
units
220 μH 350mA - 6.3mm - 6.3mm 3mm - 6.3 x 6.3 x 3mm Yes ±20% 1.35Ω B82462-G4 Ferrite
RS Stock No. 770-1003
Mfr. Part No.DR127-101-R
$3.344
Each (In a Bag of 5)
units
100 μH 3.64A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 163mΩ DR73/74/125/127 Ferrite
RS Stock No. 173-1423
Mfr. Part No.IHLP1212BZER2R2M11
BrandVishay
$0.928
Each (On a Reel of 3000)
units
2.2 μH 3A 1212 3.6mm - 3mm 2mm - 3.6 x 3 x 2mm Yes ±20% 46mΩ IHLP Metal Composite
RS Stock No. 124-1880
Mfr. Part No.74476410
$0.706
Each (In a Pack of 20)
units
10 μH 150mA 1210 (3225M) 2.9mm - 2.5mm 2.2mm - 2.9 x 2.5 x 2.2mm Yes - 2.1Ω WE-GF Ferrite
RS Stock No. 167-8495
Mfr. Part No.B82462G4224M000
BrandEPCOS
$1.85
Each (On a Reel of 2500)
units
220 μH 350mA - 6.3mm - 6.3mm 3mm - 6.3 x 6.3 x 3mm Yes ±20% 1.35Ω B82462-G4 Ferrite
RS Stock No. 500-3290
Mfr. Part No.744272471
$5.328
Each (In a Pack of 5)
units
470 μH 1.6A - 10mm - 8.7mm 6.5mm - 10 x 8.7 x 6.5mm - ±40% 65mΩ WE-SL5 Ferrite
RS Stock No. 163-4053
Mfr. Part No.74408943033
$2.575
Each (On a Reel of 500)
units
3.3 μH 3.6A 4838 4.8mm - 4.8mm 3.8mm - 4.8 x 4.8 x 3.8mm Yes ±20% 36mΩ WE-SPC Ferrite
RS Stock No. 163-4268
Mfr. Part No.7448709330
$4.085
Each (On a Reel of 250)
units
33 μH 4.4A 1210 (3225M) 12.5mm - 12.5mm 10.5mm - 12.5 x 12.5 x 10.5mm Yes ±20% 100mΩ WE-DD Ferrite
RS Stock No. 163-4612
Mfr. Part No.744770112
$2.364
Each (On a Reel of 500)
units
12 μH 5.9A - 12mm - 12mm 8mm - 12 x 12 x 8mm Yes ±20% 24mΩ WE-PD -
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