The RM120N30DF from Rectron Semiconductor is a MOSFET with Continous Drain Current 120 A, Drain Source Resistance 1.95 to 3.35 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 2.2 V. Tags: Surface Mount. More details for RM120N30DF can be seen below.