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. 715-7471
Mfr. Part No.28473C
€1.13
Each
units
47 μH 2.66A - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 86mΩ 2800 -
RS Stock No. 715-7099
Mfr. Part No.50475C
€1.13
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. 106-8885
Mfr. Part No.50475C
€0.843
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. 170-9301
Mfr. Part No.28473C
€0.876
Each (On a Reel of 350)
units
47 μH 2.66A - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 86mΩ 2800 -
RS Stock No. 170-9303
Mfr. Part No.28224C
€0.754
Each (On a Reel of 350)
units
220 μH 1.2A - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 381mΩ 2800 -
RS Stock No. 749-6420
Mfr. Part No.60B334C
€2.60
Each
units
330 μH 4A - 27mm - 19.5mm 20mm - 27 x 19.5 x 20mm - ±15% 80mΩ 6000B -
RS Stock No. 800-4413
Mfr. Part No.45224C
€0.462
Each (In a Bag of 5)
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. 170-9315
Mfr. Part No.41470C
€1.661
Each (On a Reel of 25)
units
47 μH 2.2A - 17.53mm - 16.76mm 9.91mm - 17.53 x 16.76 x 9.91mm - - 62mΩ 4100 -
RS Stock No. 170-9305
Mfr. Part No.28474C
€1.008
Each (On a Reel of 350)
units
470 μH 780mA - 18.5mm - 15.2mm 7.6mm - 18.5 x 15.2 x 7.6mm - - 816mΩ 2800 -
RS Stock No. 104-8503
Mfr. Part No.39U322C
€1.178
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. 104-8462
Mfr. Part No.38H252C
€1.366
Each (In a Pack of 5)
units
2.5 μH 5.5A - 10.4mm - 10.4mm 5.6mm - 10.4 x 10.4 x 5.6mm - ±20% 15.1mΩ 3800 -
RS Stock No. 715-7415
Mfr. Part No.35152C
€1.13
Each
units
1.5 μH 6.5A - 6.8mm - 7.6mm 3.2mm - 6.8 x 7.6 x 3.2mm - ±25% 19mΩ 3500 -
RS Stock No. 905-5043
Mfr. Part No.84223C
€0.216
Each (In a Bag of 5)
units
22 μH 600mA - 3.3mm - 4.5mm 2.6mm - 3.3 x 4.5 x 2.6mm - - 600mΩ 8400 -
RS Stock No. 170-9196
Mfr. Part No.38H122C
€0.963
Each (On a Reel of 650)
units
1.2 μH 9A - 10.4mm - 10.4mm 5.6mm - 10.4 x 10.4 x 5.6mm - ±20% 6.8mΩ 3800 -
RS Stock No. 905-5009
Mfr. Part No.46333C
€0.526
Each (In a Bag of 5)
units
33 μH 1.45A - 7.3mm - 4.55mm 7.3mm - 7.3 x 4.55 x 7.3mm Yes - 190mΩ 4600 -
RS Stock No. 800-4432
Mfr. Part No.82473C
€0.278
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. 905-4983
Mfr. Part No.22R106MC
€0.752
Each (In a Bag of 5)
units
10 mH 68mA - 7.8mm - 7.5mm 7mm - 7.8 x 7.5 x 7mm - - 37.4Ω 2200RM -
RS Stock No. 106-8547
Mfr. Part No.60B683C
€2.492
Each (In a Tray of 30)
units
68 μH 9A - 27mm - 19.5mm 20mm - 27 x 19.5 x 20mm - ±15% 17mΩ 6000B -
RS Stock No. 125-2420
Mfr. Part No.DFE252012P-4R7M=P2
€0.147
Each (On a Reel of 3000)
units
4.7 μH 2.2A 2012 2.5mm - 2mm 1.2mm - 2.5 x 2 x 1.2mm Yes ±20% 200mΩ DFE252012P Powered Iron
RS Stock No. 170-9202
Mfr. Part No.38L361C
€0.963
Each (On a Reel of 650)
units
360 nH 18A - 10.4mm - 10.4mm 5.6mm - 10.4 x 10.4 x 5.6mm - ±30% 1.8mΩ 3800 -