The CAP ALUM POLY 220UF 20 2V SMD is a type of capacitor used in electronic circuits. It has a capacitance value of 220 microfarads and an operating voltage of 2 volts. The capacitor is made from aluminum and polymer materials, and it is housed in a surface-mount device (SMD) package with a metric code of 2917 (or 7343). This capacitor also features low resistance of around 9 milliohms and is designed to withstand high temperatures up to 105 degrees Celsius for a period of 2000 hours.