What are mosfet transistors used for, low-voltage MOSFETs, mosfet terminals

  Single N-Channel 80 V 30 mOhm 33 nC HEXFET® Power Mosfet - TO-252AA

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--mosfets/irlr2908trpbf-infineon-9173916