The AUIRFS8407 from Infineon Technologies is a MOSFET with Continous Drain Current 180 to 250 A, Drain Source Resistance 1.4 to 2 Mohms, Drain Source Breakdown Voltage 40 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for AUIRFS8407 can be seen below.