The CAP ALUM POLY 470UF 20 6.3V SMD is a specific type of capacitor that features an aluminum-polymer design. It has a capacitance value of 470 microfarads and operates at a voltage rating of 6.3 volts. This component is designed for surface-mount applications, with a radial, can-style packaging suitable for use in various electronic circuits. The capacitor's specifications also include a resistance value of 9 milliohms and a shelf life of 2000 hours when subjected to temperatures up to 105 degrees Celsius.