I would like to know what is the fastest SiC FET greater than or equal to 10A in a TO-247-3 package.
Currently I am using a C2M0280120D. My switching speed is 7 MHz. I want to know if there is a faster FET.
Maybe the C3M0280090D would be better?
So, if I understand correctly, what I should be looking for to determine the speed of switching should be:
Lower RDS on.
Lower input capacitance.
Lower rise time? Turn on delay time?
Is that the idea?
Best Answer
The obvious first disclaimer is that you're using these devices in ways that they are not intended, YMMV. That being said, here is how you might compare devices. I think it will probably work well for non-linear amplifier types (class C, E, F), but linearity will be hard. Harmonics are also tricky as well - I've had hard-switching SiC MOSFET circuits with significant frequency components above 200 MHz.