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. 163-5135
Mfr. Part No.744778926
$2.06
Each (On a Reel of 1000)
units
680 μH 220mA 7332 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 5.73Ω WE-PD -
RS Stock No. 772-9717
Mfr. Part No.SRN4018-6R8M
BrandBourns
$0.289
Each (In a Bag of 10)
units
6.8 μH 1.5A rms - 4mm - 4mm 1.8mm - 4 x 4 x 1.8mm Yes ±20% 118mΩ SRN4018 Ferrite
RS Stock No. 167-4027
Mfr. Part No.LQH44PN4R7MJ0L
BrandMurata
$0.254
Each (On a Reel of 1000)
units
4.7 μH 980mA 1515 4mm - 4mm 1.1mm - 4 x 4 x 1.1mm Yes ±20% 140mΩ LQH44P_J0 Ferrite
RS Stock No. 163-4089
Mfr. Part No.7443631000
$7.55
Each (On a Reel of 100)
units
10 μH 23A 2013 21.5mm - 21mm 14mm - 21.5 x 21 x 14mm Yes ±15% 7.96mΩ WE-HCF Ferrite
RS Stock No. 899-7252
Mfr. Part No.7447669147
$0.553
Each (In a Bag of 10)
units
47 μH 425mA 4532 4.2mm - 3.2mm 3.2mm - 4.2 x 3.2 x 3.2mm - - 1.54Ω WE-GFH Iron
RS Stock No. 770-1069
Mfr. Part No.DR127-820-R
$1.156
Each (In a Bag of 5)
units
82 μH 4.06A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 143mΩ DR73/74/125/127 Ferrite
RS Stock No. 469-2811
Mfr. Part No.LQH32CN470K23L
BrandMurata
$0.302
Each (In a Pack of 20)
units
47 μH 170mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% 1.3Ω LQH32CN -
RS Stock No. 744-5047
Mfr. Part No.7443631000
$8.84
Each
units
10 μH 23A 2013 21.5mm - 21mm 14mm - 21.5 x 21 x 14mm Yes ±15% 7.96mΩ WE-HCF Ferrite
RS Stock No. 172-9555
Mfr. Part No.SRN4018-6R8M
BrandBourns
$0.37
Each (On a Reel of 3000)
units
6.8 μH 1.5A rms - 4mm - 4mm 1.8mm - 4 x 4 x 1.8mm Yes ±20% 118mΩ SRN4018 Ferrite
RS Stock No. 706-2884
Mfr. Part No.B82422H1333K000
BrandEPCOS
$0.657
Each (In a Pack of 10)
units
33 μH 280mA 1210 (3225M) 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - ±10% 1.4Ω SIMID Ferrite
RS Stock No. 161-8066
Mfr. Part No.LQW15AN10NG00D
BrandMurata
$1,149.88
1 Reel of 10000
Reel(s)
10 nH 500mA 0402 (1005M) 1mm - 0.6mm 0.5mm - 1 x 0.6 x 0.5mm - ±2% 170mΩ LQW15A Ferrite
RS Stock No. 172-8492
Mfr. Part No.SRR0604-101KL
BrandBourns
$0.448
Each (On a Reel of 1000)
units
100 μH 570mA 0604 6.5mm - 6.5mm 4.8mm - 6.5 x 6.5 x 4.8mm Yes ±10% - SRR0604 Ferrite
RS Stock No. 614-2734
Mfr. Part No.VLCF4020T-2R2N1R7
BrandTDK
$1.17
Each (In a Pack of 5)
units
2.2 μH 2.19A - 4.3mm - 4mm 2mm - 4.3 x 4 x 2mm Yes ±30% 59mΩ VLCF -
RS Stock No. 163-4028
Mfr. Part No.7440430022
$1.60
Each (On a Reel of 500)
units
2.2 μH 2.5A 4828 4.8mm - 4.8mm 2.8mm - 4.8 x 4.8 x 2.8mm Yes ±30% 28mΩ WE-TPC Ferrite
RS Stock No. 727-1710
Mfr. Part No.SDR1006-101KL
BrandBourns
$1.016
Each (In a Pack of 5)
units
100 μH 1.7A 1006 - - - 5.8mm 9.8mm 9.8 (Dia.) x 5.8mm - ±10% 350mΩ SDR1006 Ferrite
RS Stock No. 905-5015
Mfr. Part No.46683C
$0.876
Each (In a Bag of 5)
units
68 μH 1.05A - 7.3mm - 4.55mm 7.3mm - 7.3 x 4.55 x 7.3mm Yes - 360mΩ 4600 -
RS Stock No. 798-1662
Mfr. Part No.744778926
$2.06
Each
units
680 μH 220mA 7332 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 5.73Ω WE-PD -
RS Stock No. 169-9647
Mfr. Part No.DR127-820-R
$1.485
Each (On a Reel of 350)
units
82 μH 4.06A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 143mΩ DR73/74/125/127 Ferrite
RS Stock No. 571-212
Mfr. Part No.EEUFC1H102L
BrandPanasonic
$1.62
Each (In a Pack of 5)
units
- - - - - - 40mm 12.5mm 12.5 (Dia.) x 40mm - ±20% - FC Radial -
RS Stock No. 772-9654
Mfr. Part No.SRN3010-2R2M
BrandBourns
$0.314
Each (In a Bag of 10)
units
2.2 μH 1.9A rms - 3mm - 3mm 1mm - 3 x 3 x 1mm Yes ±20% 96mΩ SRN3010 Ferrite
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