The NTPF450N80S3Z from onsemi is a MOSFET with Continous Drain Current 0.45833333333, Drain Source Resistance 380 to 450 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 NTPF450N80S3Z can be seen below.