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. 170-1569
Mfr. Part No.B66372A2000T001
BrandEPCOS
HK$46.358
Each (On a Reel of 30)
units
Horizontal Coil Former E 70/33/32 Core - - Polyphenylene Sulphide - 46.5mm 89mm +155°C
RS Stock No. 170-1571
Mfr. Part No.B66388A2000T001
BrandEPCOS
HK$31.291
Each (On a Reel of 9)
units
Horizontal Coil Former E 65/32/27 Core - - Polyphenylene Sulphide - 44mm 79mm +155°C
RS Stock No. 170-1484
Mfr. Part No.B65884E0012D001
BrandEPCOS
HK$11.141
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. 167-8580
Mfr. Part No.B65687A1018T001
BrandEPCOS
HK$69.542
Each (In a Box of 10)
units
PM 74/59 Coil Former B65686 85.5 x 57.3 x 57.8mm 18 GFR Polyterephthalate 57.8mm 85.5mm 57.3mm +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. 170-1407
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. 125-3355
Mfr. Part No.B65662B0000T001
BrandEPCOS
HK$2.604
Each (In a Pack of 50)
units
Vertical Coil Former P 22 x 13 Core - - GFR Polyterephthalate - - 17.8 (Dia.)mm +155°C
RS Stock No. 125-3351
Mfr. Part No.B65652B0000T001
BrandEPCOS
HK$2.091
Each (In a Pack of 50)
units
Vertical Coil Former P 18 x 11 Core - - GFR Polyterephthalate - - 14.8 (Dia.)mm +155°C
RS Stock No. 125-3417
Mfr. Part No.B65848D1010D001
BrandEPCOS
HK$24.80
Each (In a Pack of 2)
units
Horizontal Coil Former EP 20 Core - 10 GFR Thermosetting Plastic - 26.8mm 22.8mm +155°C
RS Stock No. 653-1207
Mfr. Part No.B66368B1020T001
BrandEPCOS
HK$18.60
Each
units
ETD 49/25/16 Coil Former B66367 48.5 x 24.9 x 16.7mm 20 GFR Polyterephthalate 16.7mm 48.5mm 24.9mm -
RS Stock No. 170-1463
Mfr. Part No.B65844W1010D001
BrandEPCOS
HK$4.956
Each (On a Reel of 500)
units
Horizontal Coil Former EP/EPO 13 Core - 10 GFR Thermosetting Plastic - 15.9mm 14.8mm +180°C
RS Stock No. 170-1498
Mfr. Part No.B66208B1110T001
BrandEPCOS
HK$5.112
Each (On a Reel of 450)
units
Horizontal Coil Former E 25/13/7 Core - 10 GFR Polyterephthalate - 27.5mm 28mm +155°C
RS Stock No. 647-9553
Mfr. Part No.B66418W1008D001
BrandEPCOS
HK$11.866
Each (In a Pack of 5)
units
EFD 20/10/7 Coil Former B66417 20 x 20.3 x 10.4mm 8 GFR Thermosetting Plastic 10.4mm 20mm 20.3mm +180°C
RS Stock No. 170-7491
Mfr. Part No.FS-2ETD-2910-10
BrandBlock
HK$15.886
Each (In a Bag of 5)
units
ETD 29 FS-2ETD-2910-00 - 14 T375J - - - -
RS Stock No. 170-1459
Mfr. Part No.B65840B1006D001
BrandEPCOS
HK$3.476
Each (On a Reel of 2000)
units
Horizontal Coil Former EP 7 Core - 6 GFR Thermosetting Plastic - 10.7mm 8.5mm +155°C
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. 170-1490
Mfr. Part No.B65982E0012D001
BrandEPCOS
HK$13.133
Each (On a Reel of 72)
units
Vertical Coil Former PQ 50 x 50 Core - 12 PMC Thermosetting Plastic - 45.72mm 51mm -
RS Stock No. 170-1533
Mfr. Part No.B66308B1108T001
BrandEPCOS
HK$5.775
Each (On a Reel of 1000)
units
Horizontal Coil Former E 16/8/5 Core - 8 GFR Polyterephthalate - 17.8mm 20mm +155°C
RS Stock No. 170-1583
Mfr. Part No.B66414W1008D001
BrandEPCOS
HK$5.234
Each (On a Reel of 960)
units
Horizontal Coil Former EFD 15/8/5 Core - 8 GFR Thermosetting Plastic - 15mm 16.5mm +180°C
RS Stock No. 173-1176
Mfr. Part No.B65844S2000X000
BrandEPCOS
HK$7.119
Each (In a Bag of 500)
units
Mounting Assembly Kit EP 13 Core - - Bronze (Clamp), Cold Rolled Steel (Yoke) - 15 (Clamp) mm, 16 (Yoke) mm 13 (Clamp) mm, 14 (Yoke) mm -