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. 740-9653
BrandRS PRO
$0.245
Each (In a Bag of 10)
units
27 μH 1.3A 75 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±20% 120mΩ - -
RS Stock No. 169-3761
BrandRS PRO
$0.744
Each (On a Reel of 600)
units
390 μH 650mA 25 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 690mΩ - -
RS Stock No. 169-3438
BrandRS PRO
$0.714
Each (On a Reel of 500)
units
±680 μH 400mA 31 12.8mm - 9.3mm 5mm - 12.8 x 9.3 x 5mm - - 2.02Ω - -
RS Stock No. 124-5581
BrandRS PRO
$1.097
Each (In a Pack of 20)
units
150 μH 1A 25 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes - 230mΩ - -
RS Stock No. 124-5618
BrandRS PRO
$0.609
Each (In a Pack of 25)
units
1 mH 480mA 0105 10.6mm - 10.5mm 5mm - 10.6 x 10.5 x 5mm Yes - 1.989Ω - -
RS Stock No. 169-3460
BrandRS PRO
$0.374
Each (On a Reel of 2000)
units
- 400mA 1206 (3216M) 3.2mm - 1.6mm 2mm - 3.2 x 1.6 x 2mm Yes - 300mΩ - Ferrite
RS Stock No. 763-1392
BrandRS PRO
$0.122
Each (On a Reel of 1000)
units
150 nH 400mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 560mΩ WL05 Ceramic
RS Stock No. 741-9117
BrandRS PRO
$0.556
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. 763-1428
BrandRS PRO
$0.047
Each (On a Reel of 1000)
units
1.5 nH 700mA 0402 (1005M) 1mm - 0.5mm 0.32mm - 1 x .5 x .32mm - ±0.1nH 250mΩ AL Ceramic
RS Stock No. 741-8997
BrandRS PRO
$0.736
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. 740-9704
BrandRS PRO
$0.498
Each (In a Bag of 10)
units
470 μH 340mA 75 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±10% 1.96Ω - -
RS Stock No. 169-3461
BrandRS PRO
$0.374
Each (On a Reel of 2000)
units
- 300mA 1206 (3216M) 3.2mm - 1.6mm 2mm - 3.2 x 1.6 x 2mm Yes - 750mΩ - Ferrite
RS Stock No. 169-3744
BrandRS PRO
$387.74
1 Reel of 1000
Reel(s)
180 μH 510mA 75 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±10% 710mΩ - -
RS Stock No. 162-1405
BrandRS PRO
$0.972
Each (On a Reel of 250)
units
22 μH 4.95A - 12mm - 12.5mm 10mm - 12 x 12 x 10mm Yes ±20% 29mΩ - -
RS Stock No. 740-9669
BrandRS PRO
$0.756
Each (In a Bag of 10)
units
47 μH 1.1A 75 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±10% 180mΩ - -
RS Stock No. 124-5598
BrandRS PRO
$0.395
Each (In a Pack of 50)
units
- - 1206 (3216M) 3.2mm - 1.6mm 2mm - 3.2 x 1.6 x 2mm Yes - - - Ferrite
RS Stock No. 123-4661
BrandRS PRO
$2.448
Each (In a Pack of 10)
units
22 μH 4.95A - 12mm - 12.5mm 10mm - 12 x 12 x 10mm Yes ±20% 29mΩ - -
RS Stock No. 104-8413
BrandRS PRO
$3.635
Each (In a Pack of 2)
units
220 μH 940mA - 12mm - 12mm 9.1mm - 12 x 12 x 9.1mm - ±15% 298mΩ LCP -
RS Stock No. 169-3729
BrandRS PRO
$0.321
Each (On a Reel of 1500)
units
3.3 μH 2.5A 54 5.8mm - 5.2mm 4.5mm - 5.8 x 5.2 x 4.5mm No ±20% 40mΩ - -
RS Stock No. 169-3739
BrandRS PRO
$0.399
Each (On a Reel of 1000)
units
22 μH 1.5A 75 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±20% 110mΩ - -
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