This is a surface-mount aluminum polymer capacitor with a capacitance of 680µF and a voltage rating of 4V DC. It features a 20% tolerance, dimensions of 10 x 7.9 mm, a low equivalent series resistance of 0.025 ohms, and a maximum continuous current of 3700mA. The capacitor has a lifespan of approximately 2000 hours at a temperature of 105°C, suitable for various electronic applications.