The JSM4842 from JSMicro Semiconductor is a MOSFET with Continous Drain Current 5.2 to 7.0 A, Drain Source Resistance 18 to 23 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 JSM4842 can be seen below.