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
SGD1.80
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. 715-7588
Mfr. Part No.41680C
SGD2.89
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. 106-8885
Mfr. Part No.50475C
SGD1.428
Each (On a Reel of 1000)
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
SGD4.08
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. 167-5935
Mfr. Part No.41680C
SGD2.887
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
SGD2.635
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. 749-6376
Mfr. Part No.60A163C
SGD3.61
Each
units
16 μH 9.6A - 22mm - 19mm 12mm - 22 x 19 x 12mm - ±10% 9mΩ 6000A -
RS Stock No. 104-8503
Mfr. Part No.39U322C
SGD2.088
Each (In a Pack of 5)
units
3.2 μH 9.7A - 12.9mm - 12.9mm 5.8mm - 12.9 x 12.9 x 5.8mm - ±20% 8mΩ 3900 -
RS Stock No. 170-9307
Mfr. Part No.28155C
SGD2.635
Each (On a Reel of 350)
units
1.5 mH 410mA - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 2.62Ω 2800 -
RS Stock No. 170-9311
Mfr. Part No.40680C
SGD2.618
Each (On a Reel of 30)
units
68 μH 1.2A - 14.22mm - 14.1mm 8.76mm - 14.22 x 14.1 x 8.76mm - - 148mΩ 4000 -
RS Stock No. 170-9296
Mfr. Part No.28152C
SGD2.616
Each (On a Reel of 350)
units
1.5 μH 12.5A - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 3.6mΩ 2800 -
RS Stock No. 167-6226
Mfr. Part No.45224C
SGD0.711
Each (On a Reel of 1000)
units
220 μH 500mA 281C 7.3mm - 7.3mm 3.55mm - 7.3 x 7.3 x 3.55mm Yes ±20% 1.55Ω 4500 -
RS Stock No. 167-6233
Mfr. Part No.82103C
SGD0.416
Each (On a Reel of 2500)
units
10 μH 500mA - 2.5mm - 3.2mm 2mm - 2.5 x 3.2 x 2mm - - 400mΩ 8200 -
RS Stock No. 715-7544
Mfr. Part No.40101C
SGD2.93
Each
units
100 μH 940mA - 14.22mm - 14.1mm 8.76mm - 14.22 x 14.1 x 8.76mm - - 177mΩ 4000 -
RS Stock No. 170-9312
Mfr. Part No.40101C
SGD2.498
Each (On a Reel of 30)
units
100 μH 940mA - 14.22mm - 14.1mm 8.76mm - 14.22 x 14.1 x 8.76mm - - 177mΩ 4000 -
RS Stock No. 170-9317
Mfr. Part No.60A313C
SGD3.254
Each (On a Reel of 200)
units
31.4 μH 9.5A - 22mm - 19mm 12mm - 22 x 19 x 12mm - ±10% 18mΩ 6000A -
RS Stock No. 715-7462
Mfr. Part No.28103C
SGD1.90
Each
units
10 μH 5.9A - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 18mΩ 2800 -
RS Stock No. 170-9314
Mfr. Part No.40221C
SGD2.659
Each (On a Reel of 30)
units
220 μH 670mA - 14.22mm - 14.1mm 8.76mm - 14.22 x 14.1 x 8.76mm - - 405mΩ 4000 -
RS Stock No. 800-4432
Mfr. Part No.82473C
SGD0.506
Each (In a Bag of 5)
units
47 μH 250mA 332C 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% 1.69Ω 8200 -
RS Stock No. 104-8458
Mfr. Part No.38H122C
SGD2.61
Each (In a Pack of 5)
units
1.2 μH 9A - 10.4mm - 10.4mm 5.6mm - 10.4 x 10.4 x 5.6mm - ±20% 6.8mΩ 3800 -