The AP50AN1K5H from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 5 A, Drain Source Resistance 1.5 ohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for AP50AN1K5H can be seen below.