UZT1V4R7MCL1GB Capacitors

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Aluminum electrolytic capacitors are polarized capacitors that use electrolytes as a medium for storing electrical energy. They are typically used in applications where a large capacitance is needed in small form factor, and are often used in switch mode power supplies, decoupling and filtering for low-frequency analog signals, and so on. UZT1V4R7MCL1GB is one of the famous aluminum electrolytic capacitors, which is specially designed for high-performance switching DC-DC converters. Its construction, application field, and working principle are discussed as follows.

Construction

UZT1V4R7MCL1GB is a radial leaded aluminum electrolytic capacitor, which is actually a can-shaped aluminum-electrolyte capacitor. It is made of an aluminum casing with metalized anode foils wound inside, and is filled with electrolyte to provide dielectric separation between the metalized anode foils. The capacitor also has a solid electrolyte or tantalum cathode inside, which is connected to one of the aluminum foil electrodes. The radial leaded terminals, on the other hand, provide the connection to the two electrodes for electrical use. Lastly, the capacitor also has an end cap at the bottom to cater for various mounting configurations.

Application Field

UZT1V4R7MCL1GB is widely applied in high-performance DC-DC switching converters. As such, it is designed to provide a high capacitance in a compact form factor, enabling the capacitor to be used in crowded circuit boards or other small form factor applications. In addition, it has a low equivalent series resistance of just 0.04 ohms, making it ideal for carrying high frequency currents and fast switching events.

Working Principle

UZT1V4R7MCL1GB utilizes the principle of electrochemical capacitor, which is to store electrical energy in an electrolyte medium. The aluminum foil serves as the anode of the capacitor, and the tantalum cathode as the cathode. When the capacitor is connected in a circuit, electrons flow from the cathode to the anode while the electrolyte absorbs the charge. This results in an increasing potential difference between the two electrodes, effectively storing energy. The stored energy is then released back into the circuit when the potential difference decreases.

In conclusion, UZT1V4R7MCL1GB is an aluminum electrolytic capacitor specially designed for high-performance switch mode DC-DC converters. It consists of an aluminum casing with metalized anodes, a solid electrolyte tantalum cathode, and end caps for various mounting configurations. The capacitor is mainly used in applications where high capacitance values are needed in small form factor, and has a low equivalent series resistance making it ideal for carrying fast switching events.

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