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. 169-9605
Mfr. Part No.DR1050-330-R
HK$12.04
Each (On a Reel of 500)
units
33 μH 2.5A 1050 10.3mm - 10.5mm 5mm - 10.3 x 10.5 x 5mm Yes ±30% 71.9mΩ DR1050 Ferrite
RS Stock No. 108-4730
Mfr. Part No.ACM4520-901-2P-T
BrandTDK
HK$5.358
Each (On a Reel of 800)
units
- 2A 4520 4.7mm - 4.5mm 2mm - 4.7 x 4.5 x 2mm - - - ACM -
RS Stock No. 167-0309
Mfr. Part No.B82432T1473K000
BrandEPCOS
HK$3.12
Each (On a Reel of 2500)
units
47 μH 350mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 1.35Ω SIMID Ferrite
RS Stock No. 725-5049
Mfr. Part No.LQH32CN100K33L
BrandMurata
HK$2.52
Each (In a Pack of 10)
units
10 μH 450mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% 300mΩ LQH32CN -
RS Stock No. 172-8565
Mfr. Part No.SRF0905-102Y
BrandBourns
HK$4.93
Each (On a Reel of 1000)
units
1 mH 800mA 0905 9.2mm - 6mm 5mm - 9.2 x 6 x 5mm - ±50% - SRF0905 Ferrite
RS Stock No. 624-0406
Mfr. Part No.74455122
HK$19.49
Each (In a Pack of 2)
units
22 μH 800mA - 6.6mm - 4.45mm 2.92mm - 6.6 x 4.45 x 2.92mm No ±20% 370mΩ WE-PD4 Ferrite
RS Stock No. 741-7073
Mfr. Part No.ACM4520-901-2P-T
BrandTDK
HK$19.774
Each (In a Pack of 5)
units
- 2A 4520 4.7mm - 4.5mm 2mm - 4.7 x 4.5 x 2mm - - - ACM -
RS Stock No. 736-1958
Mfr. Part No.744311470
HK$31.73
Each
units
4.7 μH 6A 7040 7mm - 6.9mm 3.8mm - 7 x 6.9 x 3.8mm Yes ±20% 19.5mΩ WE-HCI WE-Superflux
RS Stock No. 108-4722
Mfr. Part No.SLF10145T-101M1R0-PF
BrandTDK
HK$4.62
Each (On a Reel of 500)
units
100 μH 1A - 10.1mm - 10.1mm 4.5mm - 10.1 x 10.1 x 4.5mm - ±20% 200mΩ SLF -
RS Stock No. 167-8557
Mfr. Part No.B82477G4684M000
BrandEPCOS
HK$7.98
Each (On a Reel of 400)
units
680 μH 680mA - 12.8mm - 12.8mm 8mm - 12.8 x 12.8 x 8mm Yes ±20% 1.24Ω B82477-G4 Ferrite
RS Stock No. 727-1723
Mfr. Part No.SDR1307-2R2ML
BrandBourns
HK$6.16
Each (In a Pack of 5)
units
2.2 μH 9A 1307 - - - 7mm 13mm 13 (Dia.) x 7mm - ±20% 6mΩ SDR1307 Ferrite
RS Stock No. 617-0947
Mfr. Part No.744042100
HK$12.61
Each
units
10 μH 1.3A 4818 4.8mm - 4.8mm 1.8mm - 4.8 x 4.8 x 1.8mm Yes ±30% 150mΩ WE-TPC Ferrite
RS Stock No. 770-1000
Mfr. Part No.DR127-150-R
HK$17.706
Each (In a Bag of 5)
units
15 μH 9.66A 0127 12.5mm - 12.5mm 8mm - 12.5 x 12.5 x 8mm Yes ±20% 24.7mΩ DR73/74/125/127 Ferrite
RS Stock No. 172-7204
Mfr. Part No.SRR1210-221M
BrandBourns
HK$5.34
Each (On a Reel of 250)
units
220 μH 1.7A 1210 (3225M) 12mm - 12mm 10mm - 12 x 12 x 10mm Yes ±20% - SRR1210 Ferrite
RS Stock No. 548-3135
Mfr. Part No.NLV32T-R47J-PF
BrandTDK
HK$1.658
Each (In a Pack of 25)
units
470 nH 450mA 1210 (3225M) 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - ±5% 500mΩ NLV-PF -
RS Stock No. 787-0477
Mfr. Part No.VLS4012ET-2R2M
BrandTDK
HK$5.22
Each (In a Bag of 5)
units
2.2 μH 2.2A 4 x 4 4mm - 4mm 1.2mm - 4 x 4 x 1.2mm Yes ±20% 81mΩ VLS-E Ferrite
RS Stock No. 173-1445
Mfr. Part No.IHLP4040DZERR56M01
BrandVishay
HK$9.854
Each (On a Reel of 500)
units
560 nH 27.5A 4040 10.92mm - 10.3mm 4mm - 10.92 x 10.3 x 4mm Yes ±20% 1.8mΩ IHLP Metal Composite
RS Stock No. 166-9623
Mfr. Part No.LQH43MN470J03L
BrandMurata
HK$2.11
Each (On a Reel of 500)
units
47 μH 220mA 1812 (4532M) 4.5mm - 3.2mm 2.6mm - 4.5 x 3.2 x 2.6mm - ±5% 1.5Ω LQH43MN Ferrite
RS Stock No. 801-9535
Mfr. Part No.B82432C1103K000
BrandEPCOS
HK$8.992
Each (In a Bag of 5)
units
10 μH 320mA 1812 (4532M) 4.5mm - 3.2mm 3.2mm - 4.5 x 3.2 x 3.2mm Yes ±10% 980mΩ SIMID Ferrite
RS Stock No. 792-6334
Mfr. Part No.LQG15HS1N5S02D
BrandMurata
HK$0.342
Each (In a Bag of 250)
units
1.5 nH 300mA 0402 (1005M) 1mm - 0.5mm 0.5mm - 1 x 0.5 x 0.5mm - ±0.3nH 100mΩ LQG15HS -
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