The FQA6N90C-F109 from onsemi is a MOSFET with Continous Drain Current 6 A, Drain Source Resistance 1930 to 2300 milliohm, Drain Source Breakdown Voltage 900 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Through Hole. More details for FQA6N90C-F109 can be seen below.