URZ2A0R1MDD

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Aluminum Electrolytic Capacitors: URZ2A0R1MDD Application Field and Working Principle

Aluminum electrolytic capacitors are electrical equipment used to store electrical energy. As one of the most common types of capacitors, aluminum electrolytic capacitors are widely used in a variety of electronic circuits. The URZ2A0R1MDD is an aluminum electrolytic capacitor, and its application field and working principle are discussed below.

Application Field

The URZ2A0R1MDD is a high-temperature aluminum electrolytic capacitor that works reliably in temperature ranging from -55℃ to 105℃, and is widely used in high temperature anti-interference circuits, low power-consumption circuits, signal circuits, and various control circuits. For example, it\'s used in high frequency switching power supplies in computers, ac/dc and dc/dc converters, rectifiers, inverters, flashing LED circuits, high-voltage power supplies, and more.

Working Principle

In an aluminum electrolytic capacitor, a pair of aluminum foils of different electrolytic surfaces are placed in the capacitor. With the aluminum foils put together, the special electrolyte acts as a separating medium for electric charge, creating a dipole. The integrated dipole forms an electric capacitor.

When voltage is applied, the electrodes of the expanding tantalum-niobium alloy initiate the formation of an oxide thin film on the surface of the negative electrode. During this process, the negative electrode is isolated from the electrolyte, and the electric charge is blocked between the two electrodes via oxide film. This creates a capacitor with a certain capacitance. When disconnecting the voltage, the oxide film layers on the surface of negative electrodes will break down, leading to diffusion of electrolyte and a reset of the capacitor, releasing the electric charge. This is the working principle of an aluminum electrolytic capacitor.

Conclusion

As a type of aluminum electrolytic capacitor, the URZ2A0R1MDD works reliably in wide temperature ranges and is widely used in high temperature ant-interference circuits, low power-consumption circuits, and more. Its working principle is based on the formation of an oxide thin film, which blocks the electric charge between the two electrodes and thus forms a capacitor with a certain capacitance.

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