The IAUC100N04S6L020 from Infineon Technologies is a MOSFET with Continous Drain Current 100 A, Drain Source Resistance 1.66 to 2.70 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 IAUC100N04S6L020 can be seen below.