The JSM50P03D from JSMicro Semiconductor is a MOSFET with Continous Drain Current -38 to -50 A, Drain Source Resistance 9.5 to 21.0 milli-ohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -25 to 25 V, Gate Source Threshold Voltage -1.0 to -2.5 V. Tags: Surface Mount. More details for JSM50P03D can be seen below.