Coil Formers

Coil formers are components found in a transformer(an electrical device that transfers energy between two or more circuits). They're commonly used in electrical printed circuit boards(PCBs) to produce the energy needed to power electrical machines such as motors and generators.

Coil former applications

Coil formers are commonly used in transformers or as reactors in switch-mode power supplies. Transformers are used to bring voltage up or down in an AC electrical circuit. Both transformers and switch-mode power supplies can be used to convert mains AC power to DC power.

There are transformers all over every house. They are inside the chargers used to charge your mobile phone and other personal computing devices. They're also found in loudspeakers and microphones.

Advantages of using coil formers

  • Coil formers come in different types depending on whether you need to mount them horizontally or vertically.
  • Coil formers are usually made with an insulating material, such as thermosetting plastic, and are resistant to soldering and soldering heat.

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Description Price Accessory Type For Use With Dimensions Number of Pins Material Depth Length Width Maximum Temperature
RS Stock No. 170-1495
Mfr. Part No.B66206C1012T001
BrandEPCOS
HK$5.494
Each (On a Reel of 735)
units
Horizontal Coil Former E 20/10/6 Core - 12 GFR Polyterephthalate - 21.5mm 23.5mm +155°C
RS Stock No. 167-8204
Mfr. Part No.B66396W1022T001
BrandEPCOS
HK$13.40
Each (In a Box of 75)
units
ETD 54 B66395 61.6 x 46 x 61.4mm 22 GFR Polyterephthalate 61.4mm 61.6mm 46mm -
RS Stock No. 125-3615
Mfr. Part No.B66208B1110T001
BrandEPCOS
HK$8.622
Each (In a Pack of 10)
units
Horizontal Coil Former E 25/13/7 Core - 10 GFR Polyterephthalate - 27.5mm 28mm +155°C
RS Stock No. 170-1407
Mfr. Part No.B65662B0000T001
BrandEPCOS
HK$1.617
Each (On a Reel of 400)
units
Vertical Coil Former P 22 x 13 Core - - GFR Polyterephthalate - - 17.8 (Dia.)mm +155°C
RS Stock No. 647-9597
Mfr. Part No.B66422W1010D001
BrandEPCOS
HK$9.692
Each (In a Pack of 5)
units
EFD 25/13/9 Coil Former B66421 25 x 26 x 12.9mm 10 GFR Thermosetting Plastic 12.9mm 25mm 26mm +180°C
RS Stock No. 125-3612
Mfr. Part No.B66206C1012T001
BrandEPCOS
HK$9.893
Each (In a Pack of 10)
units
Horizontal Coil Former E 20/10/6 Core - 12 GFR Polyterephthalate - 21.5mm 23.5mm +155°C
RS Stock No. 170-1528
Mfr. Part No.B66306C1010T001
BrandEPCOS
HK$7.298
Each (On a Reel of 345)
units
SMD Coil Former E 13/7/4 Core - 10 GFR Liquid Crystal Polymer - 13mm 13mm +155°C
RS Stock No. 167-8222
Mfr. Part No.B66362W1014T001
BrandEPCOS
HK$9.702
Each (In a Box of 100)
units
ETD 34 B66361G 39.6 x 33.1 x 41.6mm 14 GFR Polyterephthalate 44mm 39.6mm 27mm +180°C
RS Stock No. 125-3607
Mfr. Part No.B65982E0012D001
BrandEPCOS
HK$22.732
Each (In a Pack of 5)
units
Vertical Coil Former PQ 50 x 50 Core - 12 PMC Thermosetting Plastic - 45.72mm 51mm -
RS Stock No. 125-3670
Mfr. Part No.B66359X1014T001
BrandEPCOS
HK$15.278
Each (In a Pack of 5)
units
Vertical Coil Former ETD 29/16/10 Core - 14 GFR Polyterephthalate - - 35.2 (Dia.)mm +180°C
RS Stock No. 125-3616
Mfr. Part No.B66208W1010T001
BrandEPCOS
HK$9.342
Each (In a Pack of 10)
units
Vertical Coil Former E 25/13/7 Core - 10 GFR Polyterephthalate - 27.5mm 17.3mm +155°C
RS Stock No. 125-3694
Mfr. Part No.B66414W1008D001
BrandEPCOS
HK$9.606
Each (In a Pack of 10)
units
Horizontal Coil Former EFD 15/8/5 Core - 8 GFR Thermosetting Plastic - 15mm 16.5mm +180°C
RS Stock No. 170-1484
Mfr. Part No.B65884E0012D001
BrandEPCOS
HK$10.928
Each (On a Reel of 72)
units
Vertical Coil Former PQ 40 x 40 Core - 12 PMC Thermosetting Plastic - 38.1mm 40mm -
RS Stock No. 170-1426
Mfr. Part No.B65806N1106D001
BrandEPCOS
HK$5.109
Each (On a Reel of 500)
units
Vertical Coil Former RM 5 Core - 6 GFR Thermosetting Plastic - - 10.1 (Dia.)mm +155°C
RS Stock No. 125-3596
Mfr. Part No.B65880E2012D001
BrandEPCOS
HK$12.70
Each (In a Pack of 5)
units
Vertical Coil Former PQ 32 x 30 Core - 12 GFR Thermosetting Plastic - 33mm 34.4mm +180°C
RS Stock No. 170-1395
Mfr. Part No.B65542B0000T001
BrandEPCOS
HK$1.043
Each (On a Reel of 1000)
units
Vertical Coil Former P 14 x 8 Core - - GFR Polyterephthalate - - 7.1 (Dia.)mm +155°C
RS Stock No. 647-9143
Mfr. Part No.B65808E1508T001
BrandEPCOS
HK$12.306
Each (In a Pack of 5)
units
RM 6 Coil Former B65807 18.4 x 16 x 12.65mm 8 GFR Polyterephthalate 12.65mm 18.4mm 16mm +155°C
RS Stock No. 125-3408
Mfr. Part No.B65840B1006D001
BrandEPCOS
HK$7.004
Each (In a Pack of 10)
units
Horizontal Coil Former EP 7 Core - 6 GFR Thermosetting Plastic - 10.7mm 8.5mm +155°C
RS Stock No. 167-0164
Mfr. Part No.B66398W1024T001
BrandEPCOS
HK$16.923
Each (In a Box of 40)
units
ETD 59/31/22 Coil Former B66397 66.9 x 66.2 x 49.2mm 24 GFR Polyterephthalate 49.2mm 66.9mm 66.2mm +180°C
RS Stock No. 170-1455
Mfr. Part No.B65820W1008D001
BrandEPCOS
HK$6.767
Each (On a Reel of 250)
units
Vertical Coil Former RM 7 Core - 8 GFR Thermosetting Plastic - - 14.65 (Dia.)mm +180°C