Power switch mosfet, MOSFET circuits, how MOSFET works, MOSFET function

 Single P-Channel 55 V 0.02 Ohm 180 nC HEXFET® Power Mosfet - TO-220-3

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--mosfets/irf4905pbf-infineon-6173863