The IPC90N04S5-3R6 from Infineon Technologies is a MOSFET with Continous Drain Current 68 to 90 A, Drain Source Resistance 3 to 4.4 Mohms, Drain Source Breakdown Voltage 40 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2.2 to 3.4 V. Tags: Surface Mount. More details for IPC90N04S5-3R6 can be seen below.