The CAP ALUM POLY 8.2UF 20 50V SMD is a type of capacitor that features an aluminum-polymer construction. It has a radial, can design and is intended for surface-mount technology (SMT) applications. This component offers high capacitance of 8.2 microfarads and can withstand up to 50 volts. The device's specifications also include a resistance of 81 milliohms and an operational lifespan of 3000 hours at a temperature of 105 degrees Celsius.