Transistors Mosfets, what is a mosfet, mosfet switch, Mosfet transistor

 BSN20-7

N-Channel 50 V 2 Ohm Surface Mount Enhancement Mode MOSFET - SOT-23-3

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--mosfets/bsn20-7-diodes-incorporated-5129524