The CAP ALUM POLY 820UF 20 2.5V T/H is a type of capacitor that features an aluminum-polymer construction with a radial configuration and a can shape. This particular component has a high capacitance value of 820 microfarads (µF), operates at a voltage rating of 2.5 volts, and boasts low resistance characteristics with a 7 milliohm (mOhm) specification. The capacitor is designed for use in high-temperature environments, with a lifespan of up to 2000 hours when subjected to temperatures as high as 105 degrees Celsius.