The RS3E180AT from ROHM Semiconductor is a MOSFET with Continous Drain Current -18 to 18 A, Drain Source Resistance 4.1 to 6.1 Milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.5 to -1 V. Tags: Surface Mount. More details for RS3E180AT can be seen below.