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. 715-7099
Mfr. Part No.50475C
SGD1.77
Each
units
4.7 mH 400mA - 7mm - 5.9mm 3.6mm - 7 x 5.9 x 3.6mm - -30 → +50% 700mΩ 5000 -
RS Stock No. 715-7469
Mfr. Part No.28223C
SGD1.87
Each
units
22 μH 3.85A - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 42mΩ 2800 -
RS Stock No. 715-7588
Mfr. Part No.41680C
SGD3.50
Each
units
68 μH 1.75A - 17.53mm - 16.76mm 9.91mm - 17.53 x 16.76 x 9.91mm - - 110mΩ 4100 -
RS Stock No. 167-5935
Mfr. Part No.41680C
SGD2.842
Each (In a Tube of 25)
units
68 μH 1.75A - 17.53mm - 16.76mm 9.91mm - 17.53 x 16.76 x 9.91mm - - 110mΩ 4100 -
RS Stock No. 170-9300
Mfr. Part No.28223C
SGD1.406
Each (On a Reel of 350)
units
22 μH 3.85A - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 42mΩ 2800 -
RS Stock No. 106-8885
Mfr. Part No.50475C
SGD1,301.50
1 Reel of 1000
Reel(s)
4.7 mH 400mA - 7mm - 5.9mm 3.6mm - 7 x 5.9 x 3.6mm - -30 → +50% 700mΩ 5000 -
RS Stock No. 104-8476
Mfr. Part No.38L882C
SGD2.19
Each (In a Pack of 5)
units
8.8 μH 4.8A - 10.4mm - 10.4mm 5.6mm - 10.4 x 10.4 x 5.6mm - ±20% 19.6mΩ 3800 -
RS Stock No. 106-8553
Mfr. Part No.60B684C
SGD4.332
Each (In a Tray of 30)
units
680 μH 3A - 27mm - 19.5mm 20mm - 27 x 19.5 x 20mm - ±15% 135mΩ 6000B -
RS Stock No. 170-9211
Mfr. Part No.39H562C
SGD1.771
Each (On a Reel of 550)
units
5.6 μH 8.2A - 12.9mm - 12.9mm 5.8mm - 12.9 x 12.9 x 5.8mm - ±20% 11.4mΩ 3900 -
RS Stock No. 104-8484
Mfr. Part No.38S502C
SGD2.564
Each (In a Pack of 5)
units
5 μH 4.9A - 10.4mm - 10.4mm 5.6mm - 10.4 x 10.4 x 5.6mm - ±20% 20.3mΩ 3800 -
RS Stock No. 170-9190
Mfr. Part No.37222C
SGD2.109
Each (On a Reel of 700)
units
2.2 μH 11.5A - 14.5mm - 11.5mm 5.8mm - 14.5 x 11.5 x 5.8mm - ±10% 4mΩ 3700 -
RS Stock No. 106-8539
Mfr. Part No.28334C
SGD1.406
Each (On a Reel of 350)
units
330 μH 950mA - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 575mΩ 2800 -
RS Stock No. 749-6420
Mfr. Part No.60B334C
SGD4.44
Each
units
330 μH 4A - 27mm - 19.5mm 20mm - 27 x 19.5 x 20mm - ±15% 80mΩ 6000B -
RS Stock No. 104-8449
Mfr. Part No.37112C
SGD2.83
Each (In a Pack of 5)
units
1.1 μH 14.5A - 14.5mm - 11.5mm 5.8mm - 14.5 x 11.5 x 5.8mm - ±10% 2.2mΩ 3700 -
RS Stock No. 715-7096
Mfr. Part No.50225C
SGD1.77
Each
units
2.2 mH 500mA - 7mm - 5.9mm 3.6mm - 7 x 5.9 x 3.6mm - -30 → +50% 400mΩ 5000 -
RS Stock No. 905-4980
Mfr. Part No.45104C
SGD0.82
Each (In a Bag of 5)
units
100 μH 700mA - 7.3mm - 3.55mm 7.3mm - 7.3 x 3.55 x 7.3mm Yes - 710mΩ 4500 -
RS Stock No. 800-4426
Mfr. Part No.48101SC
SGD0.992
Each (In a Bag of 5)
units
100 μH 1.6A 48100SC 12.2mm - 12.2mm 6mm - 12.2 x 12.2 x 6mm Yes ±20% 200mΩ 4800S -
RS Stock No. 170-9210
Mfr. Part No.39H182C
SGD1.771
Each (On a Reel of 550)
units
1.8 μH 13.5A - 12.9mm - 12.9mm 5.8mm - 12.9 x 12.9 x 5.8mm - ±20% 3.9mΩ 3900 -
RS Stock No. 104-8472
Mfr. Part No.38L432C
SGD2.126
Each (In a Pack of 5)
units
4.3 μH 6.8A - 10.4mm - 10.4mm 5.6mm - 10.4 x 10.4 x 5.6mm - ±20% 9.7mΩ 3800 -
RS Stock No. 905-5002
Mfr. Part No.46334C
SGD0.88
Each (In a Bag of 5)
units
330 μH 460mA - 7.3mm - 4.55mm 7.3mm - 7.3 x 4.55 x 7.3mm Yes - 1.85Ω 4600 -