The Vishay 017725-IRFUC20PBF is a N-Channel MOSFET with a drain-source breakdown voltage of 600V and a continuous drain current of 2A. The maximum Rds On @ Id,Vgs is 4.4 Ohm @ 1.2A, 10V. It has a maximum gate-source voltage of ±20V and a gate-source threshold voltage of 4V @ 250μA. The maximum gate charge is 18nC @ 10V and the maximum input capacitance is 350pF @ 25V. It has a power dissipation of 2.5W (Ta), 42W (Tc) and a drive voltage (Max Rds On, Min Rds On) of 10V. It comes in a TO-251AA case / package and is mounted through hole. It is commonly used and has a high popularity in the market.