The RX3G18BGN from ROHM Semiconductor is a MOSFET with Continous Drain Current -180 to 180 A, Drain Source Resistance 1.17 to 1.87 Milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Through Hole. More details for RX3G18BGN can be seen below.