The IPD50N03S2-07 from Infineon Technologies is a MOSFET with Continous Drain Current 50 A, Drain Source Resistance 5.7 to 7.3 Mohms, Drain Source Breakdown Voltage 30 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2.1 to 4 V. Tags: Surface Mount. More details for IPD50N03S2-07 can be seen below.