Switch circuit mosfet, how mosfet works, Mosfet transistor, mosfet gate

 N-channel 75 V 0.011 Ohm STripFET™ II Power MOSFET - TO-220

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--mosfets/stp75nf75-stmicroelectronics-1149129