The CAP ALUM POLY 22UF 20 25V SMD is a type of capacitor. It has a capacitance value of 22 microfarads and can withstand a voltage of up to 25 volts. The capacitor's construction involves an aluminum-polymer design, making it suitable for surface mount device (SMD) applications. Additionally, the capacitor has a low resistance of 40 milliohms and is designed to last for approximately 2000 hours at temperatures as high as 105 degrees Celsius.