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. 647-9193
Mfr. Part No.B65812C1512T001
BrandEPCOS
HK$13.766
Each (In a Pack of 5)
units
RM 8 Coil Former B65811 23.5 x 23.5 x 16.2mm 12 GFR Polyterephthalate 16.2mm 23.5mm 23.5mm +155°C
RS Stock No. 174-1588
Mfr. Part No.EFD15/8/5-3F3
BrandFERROXCUBE
HK$11.15
Each
units
EFD Core Ferrites 15 x4.65 x 7.5mm 8 GFR Phenolformaldehyde 7.5mm 15mm 4.65mm +180°C
RS Stock No. 162-0190
Mfr. Part No.B65812C1512T001
BrandEPCOS
HK$6.613
Each (In a Box of 200)
units
RM 8 Coil Former B65811 23.5 x 23.5 x 16.2mm 12 GFR Polyterephthalate 16.2mm 23.5mm 23.5mm +155°C
RS Stock No. 170-1434
Mfr. Part No.B65808N1006D001
BrandEPCOS
HK$5.28
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. 125-3382
Mfr. Part No.B65808N1004D001
BrandEPCOS
HK$9.785
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. 170-1395
Mfr. Part No.B65542B0000T001
BrandEPCOS
HK$0.907
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. 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. 653-1207
Mfr. Part No.B66368B1020T001
BrandEPCOS
HK$23.89
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. 125-3422
Mfr. Part No.B65878E0012D001
BrandEPCOS
HK$8.302
Each (In a Pack of 10)
units
Vertical Coil Former PQ 26 x 20 Core - 12 GFR Thermosetting Plastic - 26.5mm 29.3mm +180°C
RS Stock No. 161-7777
Mfr. Part No.FS-2E-2507-20
BrandBlock
HK$14.442
Each (In a Bag of 5)
units
Bobbin Choke Converter Topologies, Transmitter - - - - - - -
RS Stock No. 125-3684
Mfr. Part No.B66388A2000T001
BrandEPCOS
HK$31.29
Each (In a Pack of 2)
units
Horizontal Coil Former E 65/32/27 Core - - Polyphenylene Sulphide - 44mm 79mm +155°C
RS Stock No. 170-1435
Mfr. Part No.B65808N1006D002
BrandEPCOS
HK$5.016
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. 125-3601
Mfr. Part No.B65884E0012D001
BrandEPCOS
HK$17.448
Each (In a Pack of 5)
units
Vertical Coil Former PQ 40 x 40 Core - 12 PMC Thermosetting Plastic - 38.1mm 40mm -
RS Stock No. 170-1478
Mfr. Part No.B65880E0012D001
BrandEPCOS
HK$6.953
Each (On a Reel of 168)
units
Vertical Coil Former PQ 32 x 20 Core - 12 GFR Thermosetting Plastic - 32mm 34mm +180°C
RS Stock No. 125-3611
Mfr. Part No.B66206B1110T001
BrandEPCOS
HK$11.55
Each (In a Pack of 10)
units
Horizontal Coil Former E 20/10/6 Core - 10 GFR Polyterephthalate - 22mm 21.2mm +155°C
RS Stock No. 170-1486
Mfr. Part No.B65888N1012D001
BrandEPCOS
HK$9.034
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. 125-3383
Mfr. Part No.B65808N1006D001
BrandEPCOS
HK$7.54
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. 125-3403
Mfr. Part No.B65820W1008D001
BrandEPCOS
HK$11.279
Each (In a Pack of 10)
units
Vertical Coil Former RM 7 Core - 8 GFR Thermosetting Plastic - - 14.65 (Dia.)mm +180°C
RS Stock No. 125-3375
Mfr. Part No.B65806N1106D001
BrandEPCOS
HK$8.73
Each (In a Pack of 10)
units
Vertical Coil Former RM 5 Core - 6 GFR Thermosetting Plastic - - 10.1 (Dia.)mm +155°C
RS Stock No. 647-9525
Mfr. Part No.B66398W1024T001
BrandEPCOS
HK$25.33
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
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