HV1325-2R7156-R is a PowerStor HV Series cylindrical supercapacitor designed for high energy and power density applications. This EDLC device features a 15F capacitance with a working voltage of 2.7V and surge voltage of 3.0V, combined with an ultra-low maximum ESR of 0.028O at 1kHz for high power density. The capacitor operates over a temperature range of -40°C to 65°C, with extended operation up to 85°C with linear voltage derating to 2.1V. With nominal dimensions of 13.0mm diameter and 27.9mm length, and a typical mass of 4.5 grams, this RoHS-compliant and UL Recognized device is ideal for applications requiring energy storage ranging from micro-amps for several days to several amps for milliseconds.