The NTPF600N80S3Z from onsemi is a MOSFET with Continous Drain Current 0.33333333333, Drain Source Resistance 550 to 600 milliohm, Drain Source Breakdown Voltage 800 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.2 to 3.8 V. Tags: Through Hole. More details for NTPF600N80S3Z can be seen below.