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MOSFET (Si/SiC) Forum Discussions

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Hello there,

I am reading the data sheet of CoolMOS and something comes
into my mind...
Why is there a need for a rugged or fast body diode?
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Most resonant circuits are half- or full-bridge topologies (2 or 4 transistors). As transistors are switched on and off, energy can be left in the transistor and this can cause failure.
Due to switching times if this only happens occasionally a rugged body diode is sufficient (CoolMOS™ C6/E6 series). If due to fast transition tomes it happens continually then a fast body diode is required to make sure all the energy will leave the transistor (CoolMOS™ CFD2 series).

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Not applicable
Most resonant circuits are half- or full-bridge topologies (2 or 4 transistors). As transistors are switched on and off, energy can be left in the transistor and this can cause failure.
Due to switching times if this only happens occasionally a rugged body diode is sufficient (CoolMOS™ C6/E6 series). If due to fast transition tomes it happens continually then a fast body diode is required to make sure all the energy will leave the transistor (CoolMOS™ CFD2 series).
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