B0810-2R5105-R is a PowerStor B Series cylindrical supercapacitor utilizing electrochemical double layer capacitor (EDLC) construction for ultra-high capacitance energy storage. It features a nominal capacitance of 1.0F with a working voltage of 2.5V and surge voltage of 3.0V, along with very low ESR and low leakage currents. The device has a cylindrical form factor with dimensions of 8.0mm diameter and 13.0mm length, and operates over a temperature range of -25°C to 70°C. Common applications include main power, hybrid battery packs, hold-up power, and pulse power requirements where high specific capacitance and long cycle life are essential.