The SiDR402EP from Vishay is a MOSFET with Continous Drain Current 291 A, Drain Source Resistance 0.73 to 11.6 Milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.1 to 2.3 V. Tags: Surface Mount. More details for SiDR402EP can be seen below.