The AUIRFN8405 from Infineon Technologies is a MOSFET with Continous Drain Current 95 to 187 A, Drain Source Resistance 1.6 to 2 Mohms, Drain Source Breakdown Voltage 40 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2.2 to 3.9 V. Tags: Surface Mount. More details for AUIRFN8405 can be seen below.