The AP4P012LEH from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current -32 to -51 A, Drain Source Resistance 13.5 to 18 milli-ohm, Drain Source Breakdown Voltage -40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1 to -3 V. Tags: Surface Mount. More details for AP4P012LEH can be seen below.