The FQD1N80 from onsemi is a MOSFET with Continous Drain Current 1 A, Drain Source Resistance 15500 to 20000 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 FQD1N80 can be seen below.