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. 172-9735
Mfr. Part No.SRU1048-331Y
BrandBourns
HK$5.187
Each (On a Reel of 600)
units
330 μH 650mA - 10mm - 10mm 4.8mm - 10 x 10 x 4.8mm Yes ±30% 490mΩ SRU1048 Ferrite
RS Stock No. 903-9543
Mfr. Part No.VLF403215MT-100M
BrandTDK
HK$15.846
Each (In a Bag of 5)
units
10 μH 1A 403215 4mm - 3.2mm 1.5mm - 4 x 3.2 x 1.5mm Yes - 180mΩ VLF-M Ferrite
RS Stock No. 172-7253
Mfr. Part No.SRP1265A-6R8M
BrandBourns
HK$9.337
Each (On a Reel of 500)
units
6.8 μH 11.5A 1265 13.5mm AEC-Q200 12.5mm 6.2mm - 13.5 x 12.5 x 6.2mm Yes ±20% - SRP1265A Carbonyl Powder
RS Stock No. 693-4561
Mfr. Part No.SRR1208-330YL
BrandBourns
HK$7.19
Each
units
33 μH 2.8A - 12.7mm - 12.7mm 8.5mm - 12.7 x 12.7 x 8.5mm Yes ±15% 62mΩ SRR1208 Ferrite
RS Stock No. 724-1643
Mfr. Part No.BNX022-01L
BrandMurata
HK$50.57
Each
units
- 10A - 12.1mm - 9.1mm 3.1mm - 12.1 x 9.1 x 3.1mm - - 430µΩ BNX02 -
RS Stock No. 172-8664
Mfr. Part No.5258-RC
BrandBourns
HK$16.477
Each (In a Bag of 60)
units
1 mH 1.1A - - - - 31.75mm 12.7mm 12.7 (Dia.) x 31.75mm - - - 5200 Ferrite
RS Stock No. 819-3529
Mfr. Part No.SRP1265A-6R8M
BrandBourns
HK$10.486
Each (In a Bag of 5)
units
6.8 μH 11.5A 1265 13.5mm AEC-Q200 12.5mm 6.2mm - 13.5 x 12.5 x 6.2mm Yes ±20% 11.5mΩ SRP1265A Carbonyl Powder
RS Stock No. 172-7200
Mfr. Part No.SRR1806-150M
BrandBourns
HK$4.45
Each (On a Reel of 250)
units
15 μH 7.2A 1806 18.3mm - 14mm 6.8mm - 18.3 x 14 x 6.8mm Yes ±20% - SRR1806 Ferrite
RS Stock No. 163-3321
Mfr. Part No.74476620
HK$3.95
Each (On a Reel of 500)
units
100 μH 110mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm - ±10% WE-GF Ferrite
RS Stock No. 469-2811
Mfr. Part No.LQH32CN470K23L
BrandMurata
HK$2.448
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. 169-9626
Mfr. Part No.DR125-470-R
HK$7.001
Each (On a Reel of 600)
units
47 μH 3.24A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 74mΩ DR73/74/125/127 Ferrite
RS Stock No. 367-5089
Mfr. Part No.744777122
HK$27.00
Each
units
22 μH 1.41A - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 110mΩ WE-PD Ferrite
RS Stock No. 724-2945
Mfr. Part No.LQW18AN27NG00D
BrandMurata
HK$1.458
Each (In a Pack of 10)
units
27 nH 440mA 0603 (1608M) 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±2% 210mΩ LQW18A -
RS Stock No. 191-0251
Mfr. Part No.B82422A3681K100
BrandEPCOS
HK$5.31
Each (In a Pack of 5)
units
680 nH 145mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% 2.4Ω SIMID Ceramic
RS Stock No. 724-3027
Mfr. Part No.LQW18AN8N2D10D
BrandMurata
HK$1.458
Each (In a Pack of 10)
units
8.2 nH 800mA 0603 (1608M) 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±0.5nH 58mΩ LQW18A -
RS Stock No. 496-1498
Mfr. Part No.B82472G4103M000
BrandEPCOS
HK$11.17
Each (In a Pack of 5)
units
10 μH 1.7A - 7.3mm - 7.3mm 3.3mm - 7.3 x 7.3 x 3.3mm Yes ±20% 80mΩ B82472-G4 Ferrite
RS Stock No. 617-1079
Mfr. Part No.744053220
HK$12.00
Each
units
22 μH 1.15A 5828 5.8mm - 5.8mm 2.8mm - 5.8 x 5.8 x 2.8mm Yes ±30% 120mΩ WE-TPC Ferrite
RS Stock No. 125-3126
Mfr. Part No.LQH32CN4R7M23L
BrandMurata
HK$0.863
Each (On a Reel of 2000)
units
4.7 μH 450mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±20% 200mΩ LQH32CN -
RS Stock No. 166-7166
Mfr. Part No.ELL8TP151MB
BrandPanasonic
HK$6.508
Each (On a Reel of 500)
units
150 μH 800mA ELL8TP 8mm - 8mm 4.7mm - 8 x 8 x 4.7mm Yes ±20% 340mΩ ELL8TP Metal Composite
RS Stock No. 167-8535
Mfr. Part No.B82472G4103M000
BrandEPCOS
HK$4.831
Each (On a Reel of 1000)
units
10 μH 1.7A - 7.3mm - 7.3mm 3.3mm - 7.3 x 7.3 x 3.3mm Yes ±20% 80mΩ B82472-G4 Ferrite
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