KMH10VN393M30X40T2

Working Principle of Aluminum Electrolytic Capacitors

When an aluminum electrolytic capacitor is biased with an electric voltage, it stores energy in the form of electrons accumulated in the oxide layer of the aluminum. The capacitance of the capacitor depends on the area of the aluminum foils, the spacing between them, and the dielectric constant of the electrolyte.

When the capacitor is discharged, the electrons are discharged from the capacitor, forming a path between the anode and the cathode. This charge is then dissipated as heat, and the energy stored in the capacitor is released.

The aluminum electrolytic capacitors are generally classified based on their temperature rating, which is the maximum temperature at which the capacitor can operate efficiently without degradation or failure. The temperature rating determines the types of materials used in the construction of the capacitor as well as the construction of the exterior body.