The CAP ALUM POLY 47UF 20 6.3V SMD is a type of capacitor featuring an aluminum-polymer construction, with a capacitance value of 47 microfarads and a working voltage of 6.3 volts. It has a surface-mount design (SMD) and measures 2917 (or metric 7343) in size. This component also boasts a low resistance of 15 milliohms and an operating life of 1000 hours at an elevated temperature of 105 degrees Celsius.