High voltage mosfet, mosfet switch circuit, power MOSFET, mosfet module

 N-Channel 55 V 8.5 mOhm Surface Mount STripFET Power MosFet - TO-252

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--mosfets/std65n55f3-stmicroelectronics-5034919