The CAP ALUM POLY 390UF 20 2V SMD is a specific type of capacitor. It has a capacitance value of 390 microfarads, operates at a voltage rating of 2 volts, and utilizes an aluminum-polymer construction. This component measures 2917 in metric units or 7343 in standard measurement, with a resistance level of 9 milliohms and is rated for up to 2000 hours of continuous operation at a temperature of 105 degrees Celsius.