the BUZ73 is a silicon N - MOSFET transistor, Uds=200V, Ids=7A, applications: power switch
Uds: 200V
Ids: DC/AC 7A / 28A
Ugss: ±20V
RDS-on: <400mΩ/4.5A
N: 40W
Ton/Toff: 50/85nS