In electrical engineering, a capacitor is a device that stores electrical energy by accumulating electric charges on two closely spaced surfaces that are insulated from each other. The capacitor was originally known as the condenser, a term still encountered in a few compound names, such as the condenser. Natural capacitors have existed since prehistoric times. The most common example of natural capacitance are the static charges accumulated between clouds in the sky and the. In practice, capacitors deviate from the ideal capacitor equation in several aspects. Some of these, such as leakage current and parasitic. Practical capacitors are available commercially in many different forms. The type of internal dielectric, the structure of the plates and the device. Energy storageA capacitor can store electric energy when disconnected from its charging circuit, so it can be used like a temporary OverviewA capacitor consists of two separated by a non-conductive region. The non-conductive region can either be a or an. Marking codes for larger partsMost capacitors have designations printed on their bodies to indicate their electrical characteristics. Larger. The hazards posed by a capacitor are usually determined, foremost, by the amount of energy stored, which is the cause of things like.