CAB450M12XM3 MOSFET I-V characteristics are different for different drain current directions.

Prathik

Hi Wolfspeed team,

I would like to know why the drain-source voltage drop is different when the drain current is positive to when it is negative.

For example, at 125 degrees, the drain-source voltage drop for a drain current of 500A is 1.832V and the drop when the current is -500A is -1.719V.

Is the on-state resistance of the MOSFET lower when the drain current is negative?