TK065Z65Z Silicon N-Channel MOSFET Toshiba TK065Z65Z Silicon N-Channel MOSFET is a 270W power dissipation MOSFET with high-speed switching properties with lower capacitance. This power MOSFET operates at -55°C to 150°C temperature range and 0.054Ω low drain-source on-resistance. The TK065Z65Z MOSFET features 3V to 4V enhancement mode, 38A continuous drain current (at 150°C), and 650V drain-source breakdown voltage. Typical applications include switching power supplies.