BUY T405-600H https://www.utsource.net/itm/p/11605000.html

Description: T405-600H is a 600V, 4A, N-channel MOSFET transistor in a TO-251 package. Features: Low gate charge Low on-state resistance High current capability Low threshold voltage High switching speed Applications: DC-DC converters Motor control Switching power supplies Uninterruptible power supplies High frequency switching applications (For reference only)