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. 740-9659
BrandRS PRO
€0.297
Each (In a Bag of 10)
units
22 μH 1.5A 75 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±20% 110mΩ - -
RS Stock No. 169-3769
BrandRS PRO
€0.308
Each (On a Reel of 400)
units
68 μH 2.1A 27 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 140mΩ - -
RS Stock No. 169-3789
BrandRS PRO
€0.169
Each (On a Reel of 2500)
units
100 μH 420mA 53 5.6mm - 5.6mm 3mm - 5.6 x 5.6 x 3mm Yes ±20% 520mΩ NPIS53D -
RS Stock No. 169-3750
BrandRS PRO
€0.308
Each (On a Reel of 600)
units
12 μH 3.5A 25 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 27mΩ - -
RS Stock No. 169-3717
BrandRS PRO
€249.92
1 Reel of 2000
Reel(s)
330 μH 140mA 43 4.5mm - 4mm 3.2mm - 4.5 x 4 x 3.2mm No ±20% - -
RS Stock No. 741-8997
BrandRS PRO
€0.384
Each (In a Bag of 5)
units
100 μH 1.7A 27 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 220mΩ - -
RS Stock No. 124-5574
BrandRS PRO
€0.37
Each (In a Pack of 20)
units
±47 μH 1.8A 31 12.8mm - 9.3mm 5mm - 12.8 x 9.3 x 5mm - - 140mΩ - -
RS Stock No. 169-3771
BrandRS PRO
€0.30
Each (On a Reel of 400)
units
220 μH 1.16A 27 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 390mΩ - -
RS Stock No. 763-1367
BrandRS PRO
€0.06
Each (On a Reel of 1000)
units
33 nH 500mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 270mΩ WL05 Ceramic
RS Stock No. 169-3434
BrandRS PRO
€0.329
Each (On a Reel of 500)
units
±2.2 μH 6.1A 31 12.8mm - 9.3mm 5mm - 12.8 x 9.3 x 5mm - - 12mΩ - -
RS Stock No. 169-3456
BrandRS PRO
€329.19
1 Reel of 2000
Reel(s)
- 300mA 0805 (2012M) 2mm - 1.2mm 1.2mm - 2 x 1.2 x 1.2mm Yes - 400mΩ - Ferrite
RS Stock No. 741-9117
BrandRS PRO
€0.148
Each (In a Bag of 5)
units
120 μH 270mA 43 4.8mm - 4.8mm 3mm - 4.8 x 4.8 x 3mm Yes ±20% 1.27Ω NPIS43D -
RS Stock No. 169-3775
BrandRS PRO
€0.343
Each (On a Reel of 400)
units
470 μH 790mA 27 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 980mΩ - -
RS Stock No. 169-3449
BrandRS PRO
€0.353
Each (On a Reel of 250)
units
100 μH 2.45A 29 12mm - 12mm 10mm - 12 x 12 x 10mm Yes - 126mΩ - -
RS Stock No. 169-3712
BrandRS PRO
€249.92
1 Reel of 2000
Reel(s)
3.3 μH 2A 43 4.5mm - 4mm 3.2mm - 4.5 x 4 x 3.2mm No ±20% 70mΩ - -
RS Stock No. 169-3800
BrandRS PRO
€215.45
1 Reel of 1000
Reel(s)
33 μH 2.2A 0104 10.6mm - 10.5mm 4mm - 10.6 x 10.5 x 4mm Yes ±20% 93mΩ - -
RS Stock No. 124-5586
BrandRS PRO
€0.396
Each (In a Pack of 10)
units
47 μH 3.45A 29 12mm - 12mm 10mm - 12 x 12 x 10mm Yes - 63Ω - -
RS Stock No. 169-3743
BrandRS PRO
€94.40
1 Reel of 1000
Reel(s)
100 μH 720mA 75 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±10% 430mΩ - -
RS Stock No. 123-4662
BrandRS PRO
€0.084
Each (In a Pack of 20)
units
8.2 μH 2.25A - 6mm - 6.6mm 2.8mm - 6 x 6 x 2.8mm Yes ±20% 550µΩ - -
RS Stock No. 740-9603
BrandRS PRO
€0.215
Each (In a Bag of 20)
units
120 μH 600mA 54 5.8mm - 5.2mm 4.5mm - 5.8 x 5.2 x 4.5mm No ±10% 750mΩ - -
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