The RCJ120N20 from ROHM Semiconductor is a MOSFET with Continous Drain Current -12 to 12 A, Drain Source Resistance 250 to 790 milliohm, Drain Source Breakdown Voltage 200 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3.25 to 5.25 V. Tags: Surface Mount. More details for RCJ120N20 can be seen below.