The TSM8N80CZ from Taiwan Semiconductor is a MOSFET with Continous Drain Current 8 A, Drain Source Resistance 1100 to 1400 milliohm, Drain Source Breakdown Voltage 800 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for TSM8N80CZ can be seen below.