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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Beskrivning Pris 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
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Ferrite Core Power Transformers 18 x 10 x 4mm 2600nH N87 4mm 18mm 10mm - ELP - - - IEC 62317-9
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RM 12 - 37.6 x 29.8 x 24.6mm 6000nH N41 24.6mm 37.6mm 29.8mm - - - - - -
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ETD 44 - 43.8 x 22.5 x 15.2mm 3300nH N27 15.2mm 43.8mm 22.5mm - - - - - -
RS-artikelnummer 840-7134
Tillv. art.nrFS-1E-2006-00
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E 20 Reactors, Transformers 20.4 x 5.9 x 10.1mm 1470nH N87 10.1mm 20.4mm 5.9mm +210°C - - - - -
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ETD 44 Choke Converter Topologies, Transmitter 44 x 15 x 22mm 3500nH N87 22mm 44mm 15mm - - - - - -
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Ferrite Core Common-Mode Chokes, Power Transformers 16 x 4.7 x 8.2mm 1000nH N87 8.2mm 16mm 4.7mm - - - - - IEC 61246
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PM 62/49 DC DC converter 76 x 64 x 55mm 9200nH N87 - 62mm 49mm - - - - - -
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ETD 59 Choke Converter Topologies, Transmitter 59 x 22 x 31mm 5300nH N87 31mm 59mm 22mm - - - - - -
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PM 39, PM 50 Power Transformer - 250nH N27 - 50mm 39mm - - - - - -
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