The IAUC120N04S6L005 from Infineon Technologies is a MOSFET with Continous Drain Current 60 to 435 A, Drain Source Resistance 0.43 to 0.80 Mohms, Drain Source Breakdown Voltage 40 V, Gate Source Voltage 16 V, Gate Source Threshold Voltage 1.2 to 2 V. Tags: Surface Mount. More details for IAUC120N04S6L005 can be seen below.