The IAUA200N04S5N010 from Infineon Technologies is a MOSFET with Continous Drain Current 200 A, Drain Source Resistance 0.8 to 1.2 Mohms, Drain Source Breakdown Voltage 40 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2.2 to 3.4 V. Tags: Surface Mount. More details for IAUA200N04S5N010 can be seen below.