A capacitor is an electronic component used to store energy. Capacitors consist of 2 metal plates that are separated by a dielectric (non-conductive electrical insulator). Some of the most common dielectrics used are Electrolytic, Ceramic, & Film. The different plate and dielectric materials allow for a variety of capacitor types that can be specialized for specific functions and uses. Capacitors are measured in Farads as well as subdivisions of Farads such as uF(microfarad), nF (nanofarad), & pF (picofarad) and capacitors that are rated at 1 Farad or greater are typically referred to as Supercapacitors.