Hi. Can I replace a MOSFET that has low drain current, 20A with higher drain current, 58A? The part number for the low drain current MOSFET is Si7884DP and the high drain current is Si7884BDP. I attach the datasheet for reference.

Thank you.

 

Depends. If it is switching fast, 10KHz or more, I would worry about the much higher total gate charge. That could cause it to overheat.