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. 125-3603
Mfr. Part No.B65888N1012D001
BrandEPCOS
kr 13,978
Each (In a Pack of 5)
Units
Vertical Coil Former RM 14 Core - 12 GFR Thermosetting Plastic - - 28.8 (Dia.)mm +180°C
RS Stock No. 212-6839
Mfr. Part No.B65888C1512T001
BrandEPCOS
kr 17,428
Each (In a Pack of 5)
Units
RM 14 Coil Former B65887 41 x 31.4 x 29.3mm 12 GFR Polyterephthalate 29.3mm 41mm 31.4mm +155°C
RS Stock No. 167-8481
Mfr. Part No.B65816C1512T001
BrandEPCOS
kr 8,43
Each (In a Box of 100)
Units
RM 12 Coil Former B65815 38.4 x 28.4 x 23.4mm 12 GFR Polyterephthalate 23.4mm 38.4mm 28.4mm +155°C
RS Stock No. 167-0500
Mfr. Part No.B66418W1008D001
BrandEPCOS
kr 5,78
Each (In a Box of 630)
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. 167-8478
Mfr. Part No.B65888C1512T001
BrandEPCOS
kr 10,798
Each (In a Box of 60)
Units
RM 14 Coil Former B65887 41 x 31.4 x 29.3mm 12 GFR Polyterephthalate 29.3mm 41mm 31.4mm +155°C
RS Stock No. 167-8451
Mfr. Part No.B65816N1012D001
BrandEPCOS
kr 8,051
Each (In a Box of 100)
Units
RM 12 Coil Former B65815 33 x 33 x 18mm 12 GFR Thermosetting Plastic 18mm - 24.7mm +180°C
RS Stock No. 647-9553
Mfr. Part No.B66418W1008D001
BrandEPCOS
kr 11,566
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. 212-6687
Mfr. Part No.B65816N1012D001
BrandEPCOS
kr 14,596
Each (In a Pack of 5)
Units
RM 12 Coil Former B65815 - 12 GFR Thermosetting Plastic 18mm - - +180°C
RS Stock No. 170-1434
Mfr. Part No.B65808N1006D001
BrandEPCOS
kr 5,49
Each (On a Reel of 500)
Units
Vertical Coil Former RM 6 Core - 6 GFR Thermosetting Plastic - - 12.3 (Dia.)mm +180°C
RS Stock No. 170-1433
Mfr. Part No.B65808N1004D001
BrandEPCOS
kr 5,399
Each (On a Reel of 500)
Units
Vertical Coil Former RM 6 Core - 4 GFR Thermosetting Plastic - - 7.45 (Dia.)mm +180°C
RS Stock No. 125-3382
Mfr. Part No.B65808N1004D001
BrandEPCOS
kr 9,661
Each (In a Pack of 10)
Units
Vertical Coil Former RM 6 Core - 4 GFR Thermosetting Plastic - - 7.45 (Dia.)mm +180°C
RS Stock No. 125-3383
Mfr. Part No.B65808N1006D001
BrandEPCOS
kr 9,94
Each (In a Pack of 10)
Units
Vertical Coil Former RM 6 Core - 6 GFR Thermosetting Plastic - - 12.3 (Dia.)mm +180°C
RS Stock No. 212-6722
Mfr. Part No.B65816C1512T001
BrandEPCOS
kr 15,054
Each (In a Pack of 5)
Units
RM 12 Coil Former B65815 38.4 x 28.4 x 23.4mm 12 GFR Polyterephthalate 23.4mm 38.4mm 28.4mm +155°C
RS Stock No. 170-1486
Mfr. Part No.B65888N1012D001
BrandEPCOS
kr 9,352
Each (On a Reel of 60)
Units
Vertical Coil Former RM 14 Core - 12 GFR Thermosetting Plastic - - 28.8 (Dia.)mm +180°C
RS Stock No. 125-3595
Mfr. Part No.B65880E0012D001
BrandEPCOS
kr 14,336
Each (In a Pack of 5)
Units
Vertical Coil Former PQ 32 x 20 Core - 12 GFR Thermosetting Plastic - 32mm 34mm +180°C
RS Stock No. 125-3596
Mfr. Part No.B65880E2012D001
BrandEPCOS
kr 13,46
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. 212-5088
Mfr. Part No.B65685B1016T001
BrandEPCOS
kr 68,89
Each
Units
PM 62/49 Coil Former B65684 75.5 x 48.5 x 48mm 16 GFR Polyterephthalate 48mm 75.5mm 48.5mm +155°C
RS Stock No. 125-3355
Mfr. Part No.B65662B0000T001
BrandEPCOS
kr 2,463
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. 125-3615
Mfr. Part No.B66208B1110T001
BrandEPCOS
kr 9,661
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. 125-3619
Mfr. Part No.B66230A1114T001
BrandEPCOS
kr 17,806
Each (In a Pack of 5)
Units
Horizontal Coil Former E 32/16/9 Core - 14 GFR Polyterephthalate - 37.5mm 35mm +155°C