The CAP ALUM POLY 330UF 20 2.5V T/H capacitor is a type of radial, can-style aluminum-polymer electrolytic capacitor with high capacitance value and low ESR (Equivalent Series Resistance). It has a nominal voltage rating of 2.5V and a capacitance value of 330 microfarads (µF), with an expected lifespan of 5000 hours at an operating temperature of 105°C.