The AUIRFS8407-7P from Infineon Technologies is a MOSFET with Continous Drain Current 216 to 306 A, Drain Source Resistance 1 to 1.3 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 AUIRFS8407-7P can be seen below.