The STH10N80K5-2AG from STMicroelectronics is a MOSFET with Continous Drain Current 8 A, Drain Source Resistance 600 to 680 Milliohm, Drain Source Breakdown Voltage 800 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Surface Mount. More details for STH10N80K5-2AG can be seen below.