A capacitor is an essential electronic component that stores electrical energy in the form of an electric field. It consists of two parallel plates separated by a dielectric material. The symbol commonly used to represent a capacitor in circuit diagrams is two short parallel lines with a gap between them.
Circuit diagram symbols for these capacitors depend on their manufacture and features. Variable capacitors are usually represented as a rectangle with two parallel lines and an arrow pointing toward the movable plate. One line represents the stationary plate and the other represents the mobile plate.
The graphical symbols of capacitors vividly express the structure of the component: two parallel lines signify the two plates where the dielectric is present within the capacitors, and two fine lines perpendicular to each of them represent their connection to the circuit wires. The several types of capacitors to be discussed are: 1.
The schematic symbol for a capacitor consists of two parallel lines, with a curved line in between. This curved line represents the capacitor’s plates, which are the conducting surfaces where the electric charge is stored. The parallel lines represent the terminals of the capacitor, which are used to connect it to other components in a circuit.
Fixed capacitors are represented in electronic schematics using a specific symbol. This symbol consists of parallel lines, which represent the capacitor plates, with a curved line connecting them, representing the dielectric material between the plates.
Uses electrolyte as dielectric to achieve high capacitance. Requires correct polarity. Uses tantalum pentoxide dielectric. Polarized, higher CV/volume ratio. Here is an example circuit using multiple capacitor symbols: This shows a real-world usage scenario of the various capacitor symbols in a schematic diagram.