The IAUC120N04S6L012 from Infineon Technologies is a MOSFET with Continous Drain Current 120 to 150 A, Drain Source Resistance 0.96 to 1.70 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 IAUC120N04S6L012 can be seen below.