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. 571-256
Mfr. Part No.EEUFC1H100L
BrandPanasonic
HK$2.288
Each (In a Pack of 5)
units
- - - - - - 11mm 5mm 5 (Dia.) x 11mm - ±20% - FC Radial -
RS Stock No. 107-2729
Mfr. Part No.EEUFC1H100L
BrandPanasonic
HK$0.628
Each (In a Bag of 200)
units
- - - - - - 11mm 5mm 5 (Dia.) x 11mm - ±20% - FC Radial -
RS Stock No. 166-7166
Mfr. Part No.ELL8TP151MB
BrandPanasonic
HK$4.94
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. 749-8482
Mfr. Part No.ELL8TP151MB
BrandPanasonic
HK$6.278
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. 122-0419
Mfr. Part No.ETQP3M4R7KVP
BrandPanasonic
HK$3.41
Each (On a Reel of 2000)
units
4.7 μH 4.1A - 5.5mm - 5mm 3mm - 5.5 x 5 x 3mm - ±20% 45.6mΩ ETQP3M Metal Composite
RS Stock No. 813-3397
Mfr. Part No.ETQPDH240DTV
BrandPanasonic
HK$55.03
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. 122-1744
Mfr. Part No.ETQP3M4R7KVP
BrandPanasonic
HK$7.749
Each (In a Bag of 10)
units
4.7 μH 4.1A - 5.5mm - 5mm 3mm - 5.5 x 5 x 3mm - ±20% 45.6mΩ ETQP3M Metal Composite
RS Stock No. 763-0617
Mfr. Part No.EXC18CE650U
BrandPanasonic
HK$3.59
Each (In a Pack of 25)
units
- 140mA 0603 (1608M) 1.6mm - 0.8mm 0.4mm - 1.6 x 0.8 x 0.4mm - - 1.8Ω EXC18CE Ferrite
RS Stock No. 106-7536
Mfr. Part No.ELLATP2R7NB
BrandPanasonic
HK$4,680.00
1 Reel of 1000
Reel(s)
2.7 μH 6.5A ELLATP 10mm - 10mm 4.2mm - 10 x 10 x 4.2mm Yes ±30% 5.4mΩ ELLATP -
RS Stock No. 574-198
Mfr. Part No.ELLCTV180M
BrandPanasonic
HK$11.50
Each (In a Pack of 5)
units
18 μH 3A - 12mm - 12mm 4.5mm - 12 x 12 x 4.5mm Yes ±20% 30mΩ ELLCTV -
RS Stock No. 749-8476
Mfr. Part No.ELL8TP470MB
BrandPanasonic
HK$8.344
Each (In a Bag of 5)
units
47 μH 1.5A ELL8TP 8mm - 8mm 4.7mm - 8 x 8 x 4.7mm Yes ±20% 100mΩ ELL8TP -
RS Stock No. 729-5062
Mfr. Part No.ELJFC180JF
BrandPanasonic
HK$1.807
Each (In a Pack of 10)
units
18 μH 65mA 2520 2.5mm - 2mm 1.6mm - 2.5 x 2 x 1.6mm Yes ±5% 5.4Ω ELJFC/SC Ferrite
RS Stock No. 750-0734
Mfr. Part No.ELLYFJ220M
BrandPanasonic
HK$3.234
Each (In a Bag of 5)
units
22 μH 400mA ELLYFJ 2.5mm - 2mm 1.1mm - 2.5 x 2 x 1.1mm Yes ±20% 1.65Ω ELLYFJ -
RS Stock No. 574-481
Mfr. Part No.ELL6UH102M
BrandPanasonic
HK$5.15
Each (In a Pack of 5)
units
1 mH 180mA - 6.4mm - 6mm 5mm - 6.4 x 6 x 5mm - ±20% 3.67Ω ELL6UH -
RS Stock No. 110-1851
Mfr. Part No.ELL6RH6R2M
BrandPanasonic
HK$2.655
Each (On a Reel of 1000)
units
6.2 μH 1.4A - 6.4mm - 6mm 2.8mm - 6.4 x 6 x 2.8mm - ±20% 62mΩ ELL6R -
RS Stock No. 122-1737
Mfr. Part No.ETQP3M1R5KVP
BrandPanasonic
HK$7.749
Each (In a Bag of 10)
units
1.5 μH 7.9A - 5.5mm - 5mm 3mm - 5.5 x 5 x 3mm - ±20% 12.3mΩ ETQP3M Metal Composite
RS Stock No. 573-804
Mfr. Part No.ELL6GG2R7M
BrandPanasonic
HK$8.40
Each (In a Pack of 5)
units
2.7 μH 1.8A - 6mm - 6mm 1.6mm - 6 x 6 x 1.6mm Yes ±20% 54mΩ ELL-G -
RS Stock No. 811-7190
Mfr. Part No.ETQP5M330YFC
BrandPanasonic
HK$14.75
Each
units
33 μH 6.5A 1050 10mm - 10mm 5mm - 10 x 10 x 5mm - ±20% - ETQP5M Metal Composite
RS Stock No. 770-9404
Mfr. Part No.ETQP5M330YFM
BrandPanasonic
HK$12.29
Each
units
34 μH 3.3A PCC-M 7.5mm - 7mm 5.4mm - 7.5 x 7 x 5.4mm - ±20% 132mΩ ETQP5M Metal Composite
RS Stock No. 106-7722
Mfr. Part No.ELL6SH681M
BrandPanasonic
HK$3,355.81
1 Reel of 1000
Reel(s)
680 μH 160mA ELL6SH 6mm - 6mm 3mm - 6 x 6 x 3mm Yes ±20% 4.3Ω ELL6S -