The FQA46N15 from onsemi is a MOSFET with Continous Drain Current 50 A, Drain Source Resistance 33 to 42 milliohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -25 to 25 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for FQA46N15 can be seen below.