B43545B9397M000

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, named because aluminum is the main material for their electrodes, use electrolytes as the dielectric material. They are part of a wide range of capacitors, which are mostly used for filtering, bypassing, and decoupling due to their high capacitance and good frequency response. They will not suffer significant losses and their volumetric efficiency makes them ideal for many applications. The B43545B9397M000 is a popular option, so let\'s take a look at the application fields and working principles of this type of capacitors.

Common Application Fields

Aluminum electrolytic capacitors are widely used in many different applications, including power supply, audio equipment, and high voltage circuits. They are often used as smoothing capacitors in power supplies, as the large capacitance allows them to store enough energy to smoothen the output over time. Additionally, in audio equipment, their high capacitance and good frequency response makes them very suitable for filtering and bypassing. Moreover, their ability to handle high voltages makes them suitable for high voltage circuits.

Working Principle

The working principle of an aluminum electrolytic capacitor is based on the reaction between aluminum and an electrolyte. The capacitor consists of two aluminum layers separated by a dielectric layer. The aluminum layers serve as the capacitors electrodes and the electrolyte serves as the dielectric material. When a voltage is applied, the electrolyte breaks down and forms a thin oxide layer on the surface of the aluminum layers. This oxide layer then acts as the dielectric material, allowing the capacitor to store energy.

When the capacitor is discharged, the electrolyte re-forms and the oxide layer is removed, allowing current to flow again. This cycle can be repeated as many times as necessary and the capacitor can continue to store energy with minimal losses.

Conclusion

Aluminum electrolytic capacitors, such as the B43545B9397M000, can be used in many different applications due to their large capacitance, good frequency response, and ability to handle high voltages. Their working principle is based on the reaction between aluminum and an electrolyte, forming a thin oxide layer on the surface of the aluminum layers when a voltage is applied; this oxide layer serves as a dielectric material, allowing the capacitor to store energy.