The electrolytic capacitor has a rating voltage of 16V, a temperature range of -55 to +125 degrees Celsius, and a capacitance rating of 100uF. Positive leads are longer, whereas negative leads are shorter. In an electrical circuit, a capacitor is a component in which energy is stored in an electric field created between two metal conductors (terminals). The capacitor's name comes from the capability of storing charge. As a result, capacitors are widely used as components of circuits such as filters, oscillators, and timing circuits.