The given component is a CAP ALUM POLY 100UF 20 4V SMD. This is a type of radial capacitor with an aluminum-polymer construction. It has a capacitance value of 100 microfarads and operates at a voltage of 4 volts. The component is in Surface Mount Device (SMD) form, which allows for compact designs and ease of assembly. Additionally, it features a high temperature stability of 2000 hours at an operating temperature of 105 degrees Celsius.