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. 169-3438
BrandRS PRO
SGD0.593
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. 169-3776
BrandRS PRO
SGD0.618
Each (On a Reel of 400)
units
1 mH 550mA 27 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 1.82Ω - -
RS Stock No. 740-9312
BrandRS PRO
SGD9.20
1 Bag of 10
Bag(s)
15 μH 3.1A 31 12.8mm - 9.3mm 5mm - 12.8 x 9.3 x 5mm No ±20% 46mΩ - -
RS Stock No. 124-5581
BrandRS PRO
SGD0.842
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. 169-3736
BrandRS PRO
SGD0.397
Each (On a Reel of 1500)
units
100 μH 600mA 54 5.8mm - 5.2mm 4.5mm - 5.8 x 5.2 x 4.5mm No ±10% 700mΩ - -
RS Stock No. 123-4654
BrandRS PRO
SGD1.545
Each (In a Pack of 10)
units
4.7 μH 5.5A - 7.3mm - 6.6mm 2.8mm - 7.3 x 6.6 x 2.8mm Yes ±20% 40mΩ - Ferrite
RS Stock No. 169-3771
BrandRS PRO
SGD0.531
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. 169-3419
BrandRS PRO
SGD1.403
Each (On a Reel of 1000)
units
4.7 μH 5.5A - 7.3mm - 6.6mm 2.8mm - 7.3 x 6.6 x 2.8mm Yes ±20% 40mΩ - Ferrite
RS Stock No. 169-3482
BrandRS PRO
SGD0.571
Each (On a Reel of 600)
units
150 μH 950mA 24 12.5mm - 12.5mm 5mm - 12.5 x 12.5 x 5mm Yes - 530mΩ - -
RS Stock No. 104-8411
BrandRS PRO
SGD1.904
Each (In a Pack of 5)
units
22 μH 3A - 12mm - 12mm 9.1mm - 12 x 12 x 9.1mm - ±15% 38mΩ LCP -
RS Stock No. 169-3783
BrandRS PRO
SGD0.595
Each (On a Reel of 2500)
units
47 μH 480mA 43 4.8mm - 4.8mm 3mm - 4.8 x 4.8 x 3mm Yes ±20% 587mΩ NPIS43D -
RS Stock No. 124-5573
BrandRS PRO
SGD0.666
Each (In a Pack of 20)
units
±2.2 μH 6.1A 31 12.8mm - 9.3mm 5mm - 12.8 x 9.3 x 5mm - - 12mΩ - -
RS Stock No. 741-9007
BrandRS PRO
SGD0.614
Each (In a Bag of 5)
units
180 μH 1.3A 27 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 350mΩ - -
RS Stock No. 169-3738
BrandRS PRO
SGD0.471
Each (On a Reel of 1000)
units
27 μH 1.3A 75 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±20% 120mΩ - -
RS Stock No. 740-9653
BrandRS PRO
SGD0.26
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. 173-0208
BrandRS PRO
SGD1.905
Each (In a Box of 300)
units
22 μH 3A - 12mm - 12mm 9.1mm - 12 x 12 x 9.1mm - ±15% 38mΩ LCP -
RS Stock No. 741-9145
BrandRS PRO
SGD0.928
Each (In a Bag of 5)
units
10 μH 1.3A 53 5.6mm - 5.6mm 3mm - 5.6 x 5.6 x 3mm Yes ±20% 65mΩ NPIS53D -
RS Stock No. 740-9331
BrandRS PRO
SGD6.28
1 Bag of 10
Bag(s)
100 μH 1.3A 31 12.8mm - 9.3mm 5mm - 12.8 x 9.3 x 5mm No ±20% 280mΩ - -
RS Stock No. 169-3719
BrandRS PRO
SGD0.719
Each (On a Reel of 250)
units
10 μH 4.3A 52 18.4mm - 15mm 7mm - 18.4 x 15 x 7mm No ±20% 31mΩ - -
RS Stock No. 169-3461
BrandRS PRO
SGD0.311
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