The EEF-UE0E331R is a type of aluminum-polymer capacitor, specifically designed for surface mount technology. It has a capacitance value of 330 microfarads and operates at a voltage of 2.5 volts. The component features a low equivalent series resistance (ESR) of 12 milliohms and is suitable for applications requiring long-term stability, with a lifespan of 1000 hours at a temperature of 105 degrees Celsius.