The RS1E321GN from ROHM Semiconductor is a MOSFET with Continous Drain Current -80 to 80 A, Drain Source Resistance 1.4 to 2.9 Milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 2.5 V. Tags: Surface Mount. More details for RS1E321GN can be seen below.