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. 647-9525
Mfr. Part No.B66398W1024T001
BrandEPCOS
TWD100.00
Each
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. 167-0164
Mfr. Part No.B66398W1024T001
BrandEPCOS
TWD65.10
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. 170-1502
Mfr. Part No.B66230A1114T001
BrandEPCOS
TWD41.70
Each (On a Reel of 240)
units
Horizontal Coil Former E 32/16/9 Core - 14 GFR Polyterephthalate - 37.5mm 35mm +155°C
RS Stock No. 125-3619
Mfr. Part No.B66230A1114T001
BrandEPCOS
TWD76.00
Each (In a Pack of 5)
units
Horizontal Coil Former E 32/16/9 Core - 14 GFR Polyterephthalate - 37.5mm 35mm +155°C
RS Stock No. 647-9553
Mfr. Part No.B66418W1008D001
BrandEPCOS
TWD44.80
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. 167-0500
Mfr. Part No.B66418W1008D001
BrandEPCOS
TWD22.40
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. 125-3383
Mfr. Part No.B65808N1006D001
BrandEPCOS
TWD30.60
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. 647-9143
Mfr. Part No.B65808E1508T001
BrandEPCOS
TWD60.40
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. 170-1434
Mfr. Part No.B65808N1006D001
BrandEPCOS
TWD19.90
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. 167-8498
Mfr. Part No.B65808E1508T001
BrandEPCOS
TWD22.60
Each (In a Box of 500)
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. 170-1435
Mfr. Part No.B65808N1006D002
BrandEPCOS
TWD19.30
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. 125-3385
Mfr. Part No.B65808N1006D002
BrandEPCOS
TWD33.80
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. 170-1463
Mfr. Part No.B65844W1010D001
BrandEPCOS
TWD18.70
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. 125-3622
Mfr. Part No.B66232B1114T001
BrandEPCOS
TWD45.40
Each (In a Pack of 10)
units
Horizontal Coil Former E 30/15/7 Core - 14 GFR Polyterephthalate - 35.4mm 31.4mm +155°C
RS Stock No. 170-1433
Mfr. Part No.B65808N1004D001
BrandEPCOS
TWD21.20
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
TWD37.60
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. 170-1533
Mfr. Part No.B66308B1108T001
BrandEPCOS
TWD21.80
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. 125-3623
Mfr. Part No.B66232J1112T001
BrandEPCOS
TWD50.40
Each (In a Pack of 10)
units
Vertical Coil Former E 30/15/7 Core - 12 GFR Polyterephthalate - 35.4mm 19.2mm +155°C
RS Stock No. 170-1440
Mfr. Part No.B65812N1012D001
BrandEPCOS
TWD27.00
Each (On a Reel of 200)
units
Vertical Coil Former RM 8 Core - 12 GFR Thermosetting Plastic - - 16.9 (Dia.)mm +180°C
RS Stock No. 170-1385
Mfr. Part No.B65522B0000T001
BrandEPCOS
TWD4.50
Each (On a Reel of 500)
units
Vertical Coil Former P 9 x 5 Core - - GFR Polyterephthalate - - 7.4 (Dia.)mm +155°C