The IPC50N04S5L-5R5 from Infineon Technologies is a MOSFET with Continous Drain Current 42 to 50 A, Drain Source Resistance 4.4 to 7.9 Mohms, Drain Source Breakdown Voltage 40 V, Gate Source Voltage 16 V, Gate Source Threshold Voltage 1.2 to 2 V. Tags: Surface Mount. More details for IPC50N04S5L-5R5 can be seen below.