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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RS庫存編號 744-4915
製造零件編號744778002
HK$17.556
個 (以毎袋:5)
單位
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
RS庫存編號 108-4742
製造零件編號SLF12555T-101M1R1-PF
BrandTDK
HK$4.949
個 (在毎卷:500)
單位
100 μH 1.8A - 12.5mm - 12.5mm 5.5mm - 12.5 x 12.5 x 5.5mm Yes ±20% 117mΩ SLF Ferrite
RS庫存編號 167-6235
製造零件編號82223C
HK$7,407.36
毎卷:2500 個
Reel(s)
22 μH 320mA - 2.5mm - 3.2mm 2mm - 2.5 x 3.2 x 2mm - - 920mΩ 8200 -
RS庫存編號 724-3027
製造零件編號LQW18AN8N2D10D
BrandMurata
HK$1.458
/個 (每包:10個)
單位
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庫存編號 905-5024
製造零件編號82223C
HK$2.70
個 (以毎袋:5)
單位
22 μH 320mA - 2.5mm - 3.2mm 2mm - 2.5 x 3.2 x 2mm - - 920mΩ 8200 -
RS庫存編號 144-9823
製造零件編號744777122
HK$9.501
個 (在毎卷:1000)
單位
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庫存編號 167-5578
製造零件編號LQH55DN6R8M03L
BrandMurata
HK$8.082
個 (在毎卷:350)
單位
6.8 μH 2A 2220 (5650M) 5.7mm - 5mm 4.7mm - 5.7 x 5 x 4.7mm - ±20% 74mΩ LQH55D -
RS庫存編號 693-4561
製造零件編號SRR1208-330YL
BrandBourns
HK$7.19
單位
33 μH 2.8A - 12.7mm - 12.7mm 8.5mm - 12.7 x 12.7 x 8.5mm Yes ±15% 62mΩ SRR1208 Ferrite
RS庫存編號 724-2945
製造零件編號LQW18AN27NG00D
BrandMurata
HK$1.458
/個 (每包:10個)
單位
27 nH 440mA 0603 (1608M) 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±2% 210mΩ LQW18A -
RS庫存編號 108-4740
製造零件編號SLF12555T-102MR34-PF
BrandTDK
HK$5.094
個 (在毎卷:500)
單位
1 mH 600mA - 12.5mm - 12.5mm 5.5mm - 12.5 x 12.5 x 5.5mm Yes ±20% 1.12Ω SLF Ferrite
RS庫存編號 743-5068
製造零件編號SRN3015-4R7M
BrandBourns
HK$1.606
個 (以毎袋:10)
單位
4.7 μH 1.4A 3015 3mm - 3mm 1.5mm - 3 x 3 x 1.5mm Yes ±20% 136mΩ SRN3015 Ferrite
RS庫存編號 181-6334
製造零件編號SDR0503-102KL
BrandBourns
HK$2.01
個 (在毎卷:500)
單位
1 mH 110mA SMD - - - 3mm 5mm 5 Dia. x 3mm - ±10% 11.5Ω SDR0503 Ferrite DR
RS庫存編號 496-1959
製造零件編號B82477G4333M000
BrandEPCOS
HK$14.58
單位
33 μH 3A - 12.8mm - 12.8mm 8mm - 12.8 x 12.8 x 8mm Yes ±20% 53mΩ B82477-G4 Ferrite
RS庫存編號 819-3529
製造零件編號SRP1265A-6R8M
BrandBourns
HK$6.39
個 (以毎袋:5)
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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庫存編號 172-8664
製造零件編號5258-RC
BrandBourns
HK$12.45
個 (以毎袋:60)
單位
1 mH 1.1A - - - - 31.75mm 12.7mm 12.7 (Dia.) x 31.75mm - - - 5200 Ferrite
RS庫存編號 736-1090
製造零件編號PM2120-221K-RC
BrandBourns
HK$20.55
單位
220 μH 5A 2120 30.5mm - 25.4mm 21.08mm - 30.5 x 25.4 x 21.08mm - ±10% 52mΩ PM2120 Iron
RS庫存編號 172-8630
製造零件編號SRP1265A-4R7M
BrandBourns
HK$6.16
個 (在毎卷:500)
單位
4.7 μH 13.5A 1265 13.5mm AEC-Q200 12.5mm 6.2mm - 13.5 x 12.5 x 6.2mm Yes ±20% - SRP1265A Carbonyl Powder
RS庫存編號 496-1498
製造零件編號B82472G4103M000
BrandEPCOS
HK$11.17
/個 (每包:5個)
單位
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庫存編號 333-8588
製造零件編號744770115
HK$18.93
單位
15 μH 5A - 12mm - 12mm 8mm - 12 x 12 x 8mm Yes ±20% 27mΩ WE-PD Ferrite
RS庫存編號 727-2031
製造零件編號SRR4028-470Y
BrandBourns
HK$5.13
/個 (每包:5個)
單位
47 μH 750mA 4028 4.8mm - 4.8mm 2.8mm - 4.8 x 4.8 x 2.8mm Yes ±30% 280mΩ SRR4028 Ferrite