The RSJ301N10FRA from ROHM Semiconductor is a MOSFET with Continous Drain Current -30 to 30 A, Drain Source Resistance 33 to 50 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for RSJ301N10FRA can be seen below.