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. 749-8482
Mfr. Part No.ELL8TP151MB
BrandPanasonic
HK$9.79
Each (In a Bag of 5)
units
150 μH 800mA ELL8TP 8mm - 8mm 4.7mm - 8 x 8 x 4.7mm Yes ±20% 340mΩ ELL8TP Metal Composite
RS Stock No. 166-7166
Mfr. Part No.ELL8TP151MB
BrandPanasonic
HK$6.557
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. 813-3397
Mfr. Part No.ETQPDH240DTV
BrandPanasonic
HK$76.44
Each
units
24 μH 6.9A D1431H 14.7mm - 13.2mm 13.1mm - 14.7 x 13.2 x 13.1mm - ±30% 25.8mΩ ETQPDH Metal Composite
RS Stock No. 571-206
Mfr. Part No.EEUFC1H561
BrandPanasonic
HK$8.21
Each (In a Pack of 5)
units
- - - - - - 25mm 12.5mm 12.5 (Dia.) x 25mm - ±20% - FC Radial -
RS Stock No. 106-7525
Mfr. Part No.ETQP5M220YFM
BrandPanasonic
HK$5.25
Each (On a Reel of 1000)
units
22 μH 3.7A PCC-M 7.5mm - 7mm 5.4mm - 7.5 x 7 x 5.4mm - ±20% 102mΩ ETQP5M Metal Composite
RS Stock No. 573-696
Mfr. Part No.ELL4LG1R0NA
BrandPanasonic
HK$6.04
Each (In a Pack of 5)
units
1 μH 1.9A - 3.8mm - 3.8mm 1.8mm - 3.8 x 3.8 x 1.8mm Yes ±30% 41mΩ ELL-G -
RS Stock No. 729-9575
Mfr. Part No.ELJDA101JF
BrandPanasonic
HK$1.187
Each (In a Pack of 10)
units
100 μH 70mA 3225 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - ±5% 13Ω DA -
RS Stock No. 749-8502
Mfr. Part No.ELLATP2R7NB
BrandPanasonic
HK$10.388
Each (In a Bag of 5)
units
2.7 μH 6.5A ELLATP 10mm - 10mm 4.2mm - 10 x 10 x 4.2mm Yes ±30% 5.4mΩ ELLATP -
RS Stock No. 571-234
Mfr. Part No.EEUFC1V182L
BrandPanasonic
HK$12.58
Each (In a Pack of 5)
units
- - - - - - 40mm 12.5mm 12.5 (Dia.) x 40mm - ±20% - FC Radial -
RS Stock No. 110-1838
Mfr. Part No.ELL4GG100M
BrandPanasonic
HK$1.79
Each (On a Reel of 2000)
units
10 μH 770mA - 3.8mm - 3.8mm 1.4mm - 3.8 x 3.8 x 1.4mm Yes ±20% 250mΩ ELL-G -
RS Stock No. 571-212
Mfr. Part No.EEUFC1H102L
BrandPanasonic
HK$11.64
Each (In a Pack of 5)
units
- - - - - - 40mm 12.5mm 12.5 (Dia.) x 40mm - ±20% - FC Radial -
RS Stock No. 540-9165
Mfr. Part No.ELL6RH121M
BrandPanasonic
HK$2.884
Each (In a Pack of 5)
units
120 μH 280mA - 6.4mm - 6mm 2.8mm - 6.4 x 6 x 2.8mm - ±20% 1.5Ω ELL6R -
RS Stock No. 540-9496
Mfr. Part No.ELL6SH221M
BrandPanasonic
HK$8.21
Each (In a Pack of 5)
units
220 μH 410mA - 6.4mm - 6mm 3.3mm - 6.4 x 6 x 3.3mm - ±20% 840mΩ ELL6S -
RS Stock No. 110-1844
Mfr. Part No.ELL4LG101MA
BrandPanasonic
HK$2.078
Each (On a Reel of 3000)
units
100 μH 260mA - 3.8mm - 3.8mm 1.8mm - 3.8 x 3.8 x 1.8mm Yes ±20% 2.2Ω ELL-G -
RS Stock No. 573-713
Mfr. Part No.ELL6PG4R7N
BrandPanasonic
HK$7.27
Each (In a Pack of 5)
units
4.7 μH 1.75A - 6mm - 6mm 2mm - 6 x 6 x 2mm Yes ±30% 58mΩ ELL-G -
RS Stock No. 571-230
Mfr. Part No.EEUFC1V222S
BrandPanasonic
HK$15.49
Each (In a Pack of 5)
units
- - - - - - 25mm 18mm 18 (Dia.) x 25mm - ±20% - FC Radial -
RS Stock No. 573-703
Mfr. Part No.ELL4LG3R3NA
BrandPanasonic
HK$5.39
Each (In a Pack of 5)
units
3.3 μH 1.45A - 3.8mm - 3.8mm 1.8mm - 3.8 x 3.8 x 1.8mm Yes ±30% 72mΩ ELL-G -
RS Stock No. 162-1203
Mfr. Part No.ELL8TP221MB
BrandPanasonic
HK$5.201
Each (On a Reel of 500)
units
220 μH 700mA ELL8TP 8mm - 8mm 4.7mm - 8 x 8 x 4.7mm Yes ±20% 480mΩ ELL8TP -
RS Stock No. 573-678
Mfr. Part No.ELL4LG330MA
BrandPanasonic
HK$5.994
Each (In a Pack of 5)
units
33 μH 510mA - 3.8mm - 3.8mm 1.8mm - 3.8 x 3.8 x 1.8mm Yes ±20% 610mΩ ELL-G -
RS Stock No. 110-1855
Mfr. Part No.ELL6RH330M
BrandPanasonic
HK$3.717
Each (On a Reel of 1000)
units
33 μH 600mA - 6.4mm - 6mm 2.8mm - 6.4 x 6 x 2.8mm - ±20% 380mΩ ELL6R -