The IAUT300N10S5N015 from Infineon Technologies is a MOSFET with Continous Drain Current 247 to 300 A, Drain Source Resistance 1.3 to 2 Mohms, Drain Source Breakdown Voltage 100 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2.2 to 3.8 V. Tags: Surface Mount. More details for IAUT300N10S5N015 can be seen below.