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. 166-9891
Mfr. Part No.LQH32CN100K23L
BrandMurata
HK$0.89
Each (On a Reel of 2000)
units
10 μH 300mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% 440mΩ LQH32CN -
RS Stock No. 481-1882
Mfr. Part No.LQH32CN100K23L
BrandMurata
HK$2.54
Each (In a Pack of 20)
units
10 μH 300mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% 440mΩ LQH32CN -
RS Stock No. 107-700
Mfr. Part No.LQG15HS9N1J02D
BrandMurata
HK$0.313
Each (In a Bag of 250)
units
9.1 nH 300mA 0402 (1005M) 1mm - 0.5mm 0.5mm - 1 x 0.5 x 0.5mm - ±5% 260mΩ LQG15HS -
RS Stock No. 166-9737
Mfr. Part No.LQG15HS9N1J02D
BrandMurata
HK$0.159
Each (On a Reel of 10000)
units
9.1 nH 300mA 0402 (1005M) 1mm - 0.5mm 0.5mm - 1 x 0.5 x 0.5mm - ±5% 260mΩ LQG15HS -
RS Stock No. 725-5197
Mfr. Part No.LQH43CN471K03L
BrandMurata
HK$3.844
Each (In a Pack of 10)
units
470 μH 90mA 1812 (4532M) 4.5mm - 3.2mm 2.6mm - 4.5 x 3.2 x 2.6mm - ±10% 8.5Ω LQH43CN -
RS Stock No. 167-5770
Mfr. Part No.LQH43CN471K03L
BrandMurata
HK$1.998
Each (On a Reel of 500)
units
470 μH 90mA 1812 (4532M) 4.5mm - 3.2mm 2.6mm - 4.5 x 3.2 x 2.6mm - ±10% 8.5Ω LQH43CN -
RS Stock No. 172-9848
Mfr. Part No.SRP1265A-100M
BrandBourns
HK$9.337
Each (On a Reel of 500)
units
10 μH 10A 1265 13.5mm AEC-Q200 12.5mm 6.2mm - 13.5 x 12.5 x 6.2mm Yes ±20% 16.5mΩ SRP1265A Carbonyl Powder
RS Stock No. 604-4646
Mfr. Part No.SLF7028T-330MR65-PF
BrandTDK
HK$1.747
Each (In a Pack of 10)
units
33 μH 650mA - 7mm - 7mm 2.8mm - 7 x 7 x 2.8mm Yes ±20% 240mΩ - -
RS Stock No. 165-3135
Mfr. Part No.SPM6530T-2R2M
BrandTDK
HK$4.773
Each (On a Reel of 1000)
units
2.2 μH 8.4A 6530 7.1mm - 6.5mm 3mm - 7.1 x 6.5 x 3mm Yes ±20% 19mΩ SPM Metallic Magnetic
RS Stock No. 801-9544
Mfr. Part No.B82432C1473K000
BrandEPCOS
HK$8.264
Each (In a Bag of 5)
units
47 μH 210mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 2.3Ω SIMID Ferrite
RS Stock No. 916-4257
Mfr. Part No.SPM6530T-2R2M
BrandTDK
HK$10.524
Each (In a Pack of 5)
units
2.2 μH 8.4A 6530 7.1mm - 6.5mm 3mm - 7.1 x 6.5 x 3mm Yes - 19mΩ SPM Metallic Magnetic
RS Stock No. 167-0298
Mfr. Part No.B82432C1473K000
BrandEPCOS
HK$3.27
Each (On a Reel of 2500)
units
47 μH 210mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 2.3Ω SIMID Ferrite
RS Stock No. 831-9466
Mfr. Part No.SPM6530T-2R2M
BrandTDK
HK$9.578
Each (In a Bag of 5)
units
2.2 μH 8.4A 6530 7.1mm - 6.5mm 3mm - 7.1 x 6.5 x 3mm Yes ±20% 19mΩ SPM Metallic Magnetic
RS Stock No. 819-3488
Mfr. Part No.SRP1265A-100M
BrandBourns
HK$10.70
Each (In a Bag of 5)
units
10 μH 10A 1265 13.5mm AEC-Q200 12.5mm 6.2mm - 13.5 x 12.5 x 6.2mm Yes ±20% 16.5mΩ SRP1265A Carbonyl Powder
RS Stock No. 725-4995
Mfr. Part No.LQH2MCN100K02L
BrandMurata
HK$2.87
Each (In a Pack of 10)
units
10 μH 225mA 0806 - - - - - - - ±10% 1.2Ω LQH2MC_02 -
RS Stock No. 172-8485
Mfr. Part No.SDR1105-101KL
BrandBourns
HK$4.357
Each (On a Reel of 800)
units
100 μH 2.8A E6 10mm - 11.1mm 4.8mm - 10 x 11.1 x 4.8mm - - - SDR1105 Ferrite DR
RS Stock No. 166-9587
Mfr. Part No.DLW5BTN102SQ2L
BrandMurata
HK$9.913
Each (On a Reel of 700)
units
3 μH 2A 2020 5mm - 5mm 2.35mm - 5 x 5 x 2.35mm - - 24mΩ DLW5BT -
RS Stock No. 724-1693
Mfr. Part No.DLW5BTN102SQ2L
BrandMurata
HK$13.48
Each
units
3 μH 2A 2020 5mm - 5mm 2.35mm - 5 x 5 x 2.35mm - - 24mΩ DLW5BT -
RS Stock No. 167-5522
Mfr. Part No.LQH2MCN100K02L
BrandMurata
HK$0.993
Each (On a Reel of 3000)
units
10 μH 225mA 0806 - - - - - - - ±10% 1.2Ω LQH2MC_02 -
RS Stock No. 874-9716
Mfr. Part No.SDR1105-101KL
BrandBourns
HK$5.58
Each (In a Bag of 5)
units
100 μH 2.8A E6 10mm - 11.1mm 4.8mm - 10 x 11.1 x 4.8mm - - 320mΩ SDR1105 Ferrite DR
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