The IPC70N04S5-4R6 from Infineon Technologies is a MOSFET with Continous Drain Current 54 to 70 A, Drain Source Resistance 3.9 to 5.7 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 IPC70N04S5-4R6 can be seen below.