Transformer Ferrite Cores

Some transformers feature ferrite cores, which act as a means to transfer magnetic flux within the transformer. While less common than laminated iron cores, ferrite cores allow for superior performance.

How transformer ferrite cores work

These devices are commonly parts of switched-mode power supplies. The ferrite in the core is in powdered form, which allows the transformer to operate at very high frequencies. The devices can handle a great deal of power without huge increases in the size of the device.

Types of transformer ferrite cores

Different transformer ferrite cores are intended to be used with specific kinds of equipment. These include broadband transformers, DC/DC converters, flat transformers, power transformers, reactors, switch mode power supply (SMPS ) transformers, and transmitters.

In addition to length, depth, and width, transformer ferrite cores also vary in their minimum and maximum operating temperatures. It is important to consider the operating temperature of the equipment that the core will be used in when choosing between cores. For instance, between one with a maximum temperature of +125°Cand another with one of +210°C.


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Description Price Accessory Type For Use With Dimensions AL Rating Material Depth Length Width Maximum Temperature Series Input Voltage Range Maximum Operating Temperature Minimum Operating Temperature Standards Met
RS Stock No. 125-3650
Mfr. Part No.B66311G0000X187
BrandEPCOS
MYR1.834
Each (In a Pack of 20)
units
Ferrite Core Power Transformers 20.4 x 5.9 x 10.1mm 1470nH N87 10.1mm 20.4mm 5.9mm - - - - - IEC 61246
RS Stock No. 167-0349
Mfr. Part No.B66417G0000X187
BrandEPCOS
MYR1.012
Each (In a Box of 1260)
units
EFD 20 DC DC converter 20 x 10 x 6.65mm 1200nH N87 6.65mm 20mm 10mm - - - - - -
RS Stock No. 125-3683
Mfr. Part No.B66375G0000X187
BrandEPCOS
MYR33.70
Each
units
Ferrite Core Power Transformers 80 x 20.2 x 38.5mm 4500nH N87 38.5mm 80mm 20.2mm - - - - - -
RS Stock No. 170-1544
Mfr. Part No.B66319G0000X187
BrandEPCOS
MYR1.587
Each (On a Reel of 850)
units
Ferrite Core Power Transformers 30 x 7.3 x 15.2mm 1900nH N87 15.2mm 30mm 7.3mm - - - - - -
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