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. 125-3624
Mfr. Part No.B66252B0000M001
BrandEPCOS
$7.615
Each (In a Pack of 2)
units
E 55 - 37 x 44 x 35.4mm 14 GFR 6-Polyamide 44mm 37mm 35.4mm +155°C
RS Stock No. 170-1507
Mfr. Part No.B66252B0000M001
BrandEPCOS
$4.229
Each (On a Reel of 100)
units
E 55 - 37 x 44 x 35.4mm 14 GFR 6-Polyamide 44mm 37mm 35.4mm +155°C
RS Stock No. 170-1399
Mfr. Part No.B65612B0000T001
BrandEPCOS
$1.088
Each (On a Reel of 50)
units
Vertical Coil Former P 36 x 22 Core - - GFR Polyterephthalate - - 11.5 (Dia.)mm +155°C
RS Stock No. 125-3351
Mfr. Part No.B65652B0000T001
BrandEPCOS
$0.395
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. 170-1404
Mfr. Part No.B65652B0000T001
BrandEPCOS
$0.232
Each (On a Reel of 500)
units
Vertical Coil Former P 18 x 11 Core - - GFR Polyterephthalate - - 14.8 (Dia.)mm +155°C
RS Stock No. 125-3682
Mfr. Part No.B66372A2000T001
BrandEPCOS
$13.39
Each
units
Horizontal Coil Former E 70/33/32 Core - - Polyphenylene Sulphide - 46.5mm 89mm +155°C
RS Stock No. 125-3330
Mfr. Part No.B65522B0000T001
BrandEPCOS
$0.546
Each (In a Pack of 50)
units
Vertical Coil Former P 9 x 5 Core - - GFR Polyterephthalate - - 7.4 (Dia.)mm +155°C
RS Stock No. 125-3345
Mfr. Part No.B65612B0000T001
BrandEPCOS
$1.543
Each (In a Pack of 20)
units
Vertical Coil Former P 36 x 22 Core - - GFR Polyterephthalate - - 11.5 (Dia.)mm +155°C
RS Stock No. 170-1569
Mfr. Part No.B66372A2000T001
BrandEPCOS
$8.758
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. 170-1415
Mfr. Part No.B65734B1000T001
BrandEPCOS
$21.535
Each (On a Reel of 2)
units
Vertical Coil Former PM 114 x 93 Core - - Polyphenylene Sulphide - - 87 (Dia.)mm +155°C
RS Stock No. 125-3366
Mfr. Part No.B65734B1000T001
BrandEPCOS
$21.53
Each
units
Vertical Coil Former PM 114 x 93 Core - - Polyphenylene Sulphide - - 87 (Dia.)mm +155°C
RS Stock No. 170-1385
Mfr. Part No.B65522B0000T001
BrandEPCOS
$0.283
Each (On a Reel of 500)
units
Vertical Coil Former P 9 x 5 Core - - GFR Polyterephthalate - - 7.4 (Dia.)mm +155°C
RS Stock No. 167-0500
Mfr. Part No.B66418W1008D001
BrandEPCOS
$1.121
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. 840-7308
Mfr. Part No.FS-2E-6527-20
BrandBlock
$11.98
Each
units
E 65 FS-1E-6527-00 - 16 Rynite FR530(L) - - - -
RS Stock No. 647-9553
Mfr. Part No.B66418W1008D001
BrandEPCOS
$2.222
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. 173-1176
Mfr. Part No.B65844S2000X000
BrandEPCOS
$1.455
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 -
RS Stock No. 170-1533
Mfr. Part No.B66308B1108T001
BrandEPCOS
$1.091
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. 212-9620
Mfr. Part No.B66243B1018T001
BrandEPCOS
$5.57
Each
units
E 42/21/20 Coil Former B66329 - 18 GFR Polyterephthalate 50.9mm - 37.2mm +155°C
RS Stock No. 125-3414
Mfr. Part No.B65844S2000X000
BrandEPCOS
$2.309
Each (In a Pack of 10)
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 -
RS Stock No. 840-7285
Mfr. Part No.FS-2E-4215-20
BrandBlock
$8.89
Each
units
Bobbin Choke Converter Topologies, Transmitter - - - - - - -
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EPCOS B65840 EP7 horizontal coil former is made ...
Description:
EPCOS B65840 EP7 horizontal coil former is made from GFR thermosetting plastic UL94 V-0 insulation class 60085. Maximum operating temperature 155°C. Solderability to IEC60068-2-20.This coil former has squared pins.
FS-2E series size 25/13/7 ferrite transformer bobbin with ...
Description:
FS-2E series size 25/13/7 ferrite transformer bobbin with insulation according to class B and flammability to UL 94 V-0. This ferrite transformer bobbins is horizontal mounting. Typical applications for this ferrite bobbin includes transformers and inductors in switch mode power ...
EPCOS Coil former with gullwing terminals is made ...
Description:
EPCOS Coil former with gullwing terminals is made from GFR Liquid Crystal Polymer UL94 V-0 insulation class to 60085. Maximum operating temperature is 155°C. Solderability to IEC 60068-2-58.
EPCOS PQ32/20 and P32/30 Vertical coil formers are ...
Description:
EPCOS PQ32/20 and P32/30 Vertical coil formers are made from GFR thermosetting plastic ul 94 V-0 insulation class to IEC 60085. Maximum operating temperature 180°C. Solderability to IEC 60068-2-20.