The RM180N100AT2 from Rectron Semiconductor is a MOSFET with Continous Drain Current 180 A, Drain Source Resistance 2.5 to 3 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for RM180N100AT2 can be seen below.