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. 167-5013
Mfr. Part No.LQW2BASR39J00L
BrandMurata
HK$0.71
Each (On a Reel of 2000)
units
390 nH 290mA 0805 (2012M) 2.09mm - 1.53mm 1.42mm - 2.09 x 1.53 x 1.42mm Yes ±5% 1.5Ω LQW Non-Magnetic Core
RS Stock No. 839-0976
Mfr. Part No.LQW2BASR39J00L
BrandMurata
HK$1.509
Each (In a Bag of 10)
units
390 nH 290mA 0805 (2012M) 2.09mm - 1.53mm 1.42mm - 2.09 x 1.53 x 1.42mm Yes ±5% 1.5Ω LQW Non-Magnetic Core
RS Stock No. 744-4797
Mfr. Part No.744053150
HK$10.894
Each (In a Bag of 5)
units
15 μH 1.38A 5828 5.8mm - 5.8mm 2.8mm - 5.8 x 5.8 x 2.8mm Yes ±30% 100mΩ WE-TPC Ferrite
RS Stock No. 163-3331
Mfr. Part No.74477120
HK$20.582
Each (On a Reel of 500)
units
100 μH 1.53A - 12mm - 12mm 6mm - 12 x 12 x 6mm Yes ±20% 160mΩ WE-PD Ferrite
RS Stock No. 163-4039
Mfr. Part No.744053150
HK$9.16
Each (On a Reel of 400)
units
15 μH 1.38A 5828 5.8mm - 5.8mm 2.8mm - 5.8 x 5.8 x 2.8mm Yes ±30% 100mΩ WE-TPC Ferrite
RS Stock No. 874-9687
Mfr. Part No.DR331-105BE
BrandBourns
HK$5.524
Each (In a Bag of 5)
units
1 mH 500mA - 7.3mm - 5.4mm 4.7mm - 7.3 x 5.4 x 4.7mm - - 400mΩ DR331 Ferrite
RS Stock No. 172-8525
Mfr. Part No.DR331-105BE
BrandBourns
HK$3.24
Each (On a Reel of 1500)
units
1 mH 500mA - 7.3mm - 5.4mm 4.7mm - 7.3 x 5.4 x 4.7mm - - - DR331 Ferrite
RS Stock No. 333-8500
Mfr. Part No.74477120
HK$19.49
Each
units
100 μH 1.53A - 12mm - 12mm 6mm - 12 x 12 x 6mm Yes ±20% 160mΩ WE-PD Ferrite
RS Stock No. 163-3284
Mfr. Part No.7445720
HK$14.891
Each (On a Reel of 250)
units
100 μH 2A - 22mm - 15mm 7mm - 22 x 15 x 7mm No ±10% 202mΩ WE-PD4 Ferrite
RS Stock No. 106-8882
Mfr. Part No.50105C
HK$7.32
Each (On a Reel of 1000)
units
1 mH 700mA - 9.3mm - 5.9mm 4.4mm - 9.3 x 5.9 x 4.4mm - -30 → +50% 300mΩ 5000 -
RS Stock No. 801-9576
Mfr. Part No.B82432T1333K000
BrandEPCOS
HK$7.66
Each (In a Bag of 5)
units
33 μH 400mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 1.2Ω SIMID Ferrite
RS Stock No. 173-3886
Mfr. Part No.IHLP6767GZER101M11
BrandVishay
HK$26.083
Each (On a Reel of 200)
units
100 μH 5A 6767 17.15mm - 17.15mm 7mm - 17.15 x 17.15 x 7mm Yes ±20% 110mΩ IHLP Metal Composite
RS Stock No. 173-0462
Mfr. Part No.IHLP2020CZER4R7M01
BrandVishay
HK$4.768
Each (On a Reel of 2000)
units
4.7 μH 3.5A 2020 5.49mm - 5.18mm 3mm - 5.49 x 5.18 x 3mm Yes ±20% 77.5mΩ IHLP Metal Composite
RS Stock No. 106-5370
Mfr. Part No.LQW18CNR27J00D
BrandMurata
HK$1.937
Each (In a Pack of 20)
units
270 nH 750mA 1608 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±5% 160mΩ LQW18CN_00 Ferrite
RS Stock No. 786-6857
Mfr. Part No.LQH32CN3R3M53L
BrandMurata
HK$2.814
Each (In a Bag of 10)
units
3.3 μH 710mA 1210 (3225M) 3.2mm - 2.5mm 1.55mm - 3.2 x 2.5 x 1.55mm - ±20% 156mΩ LQH32C Ferrite
RS Stock No. 532-4222
Mfr. Part No.36502C103JTDG
HK$1.88
Each (In a Pack of 10)
units
10 μH 150mA 1008 2.92mm - 2.79mm 2.1mm - 2.92 x 2.79 x 2.1mm - ±5% 3650 -
RS Stock No. 748-6915
Mfr. Part No.IHLP2020CZER4R7M01
BrandVishay
HK$8.422
Each (In a Bag of 5)
units
4.7 μH 3.5A 2020 5.49mm - 5.18mm 3mm - 5.49 x 5.18 x 3mm Yes ±20% 77.5mΩ IHLP-2020AB-01 Metal Composite
RS Stock No. 786-9528
Mfr. Part No.SLF12555T-101M1R1-PF
BrandTDK
HK$10.168
Each (In a Bag of 5)
units
100 μH 1.8A - 12.5mm - 12.5mm 5.5mm - 12.5 x 12.5 x 5.5mm Yes ±20% 117mΩ SLF Ferrite
RS Stock No. 172-8509
Mfr. Part No.SRU1048-3R0Y
BrandBourns
HK$5.187
Each (On a Reel of 600)
units
3 μH 6.2A 1048 10mm - 10mm 4.8mm - 10 x 10 x 4.8mm Yes ±30% - SRU1048 Ferrite
RS Stock No. 163-4230
Mfr. Part No.744778002
HK$13.35
Each (On a Reel of 1000)
units
2.2 μH 4.8A 7332 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 20mΩ WE-PD Ferrite
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