The JSM4953 from JSMicro Semiconductor is a MOSFET with Continous Drain Current -5.3 A, Drain Source Resistance 54 to 89 milli-ohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1.0 to -3.0 V. Tags: Surface Mount. More details for JSM4953 can be seen below.