I am using high voltage MOSFET in TO-220 package with a heatsink like this one:
Under normal conditions, the temperature of heatsink does not exceed 90 degrees.
My MOSFET can run up to 120 degress according to the datasheet.
What kind of protection can I use so that the MOSFET temperature does not go above 120 degrees in an extraordinary situation? (For example, 150-200 degrees).
Could I connect a thermal fuse in series with the MOSFET? I suppose I'd have to attach the thermal fuse to the cooler.