URZ2E680MHD

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Aluminum electrolytic capacitors are polarized electrolytic capacitors with an aluminum oxide layer as the dielectric material. As the name suggests, the anode of the aluminum electrolytic capacitor is composed of an aluminum oxide anode film and aluminum foil, and the anode leads are made of aluminum. It uses an electrolyte to complete the polarity of the capacitor, making it capable of storing electrical energy. The applications as well as the working principle of the URZ2E680MHD aluminum electrolytic capacitors, a type of capacitor manufactured by Rubycon Corporation, are described in detail in this article.

Applications of URZ2E680MHD Aluminum Electrolytic Capacitors

The URZ2E680MHD aluminum electrolytic capacitors are mainly used in circuit, for instance, DC/DC converters, which means they provide power supply conversion from one voltage to another. That is to say, the capacitors convert a DC voltage ranging from 24-180V to a smaller voltage. In addition, they are ideal for any applications requiring strong capacitors that can handle higher voltage, such as power factor correction, motor drive, and high performance audio amplifier supplies. The capacitors also provide inrush current protection and can reduce no-load power loss. Due to their excellent ripple current capability, good temperature-compensation characteristics and small size, URZ2E680MHD aluminum electrolytic capacitors are also used in power supplies. Furthermore, they are frequently used with electrolytic capacitors in voltage doubling circuit, owing to their extremely low ESR.

Working Principle of URZ2E680MHD Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor is composed of two electrodes and an electrolyte. The two electrodes are the anode and the cathode. The anode is composed of two aluminum foil layers, each of which is separated by an anodic oxide film formed through an electrolysis process. The anodic oxide has a greater capacitance per volume than any other dielectric material. As such, the aluminum electrolytic capacitor can store more energy per unit volume than other capacitors.

The electrolyte is essential in the operation of an aluminum electrolytic capacitor. The electrolyte allows the voltage across the capacitor to be established while entering and exiting the capacitor at the same time. That is to say, it allows electrons to pass through the capacitor while maintaining the voltage level. The electrolyte, in particular, can reduce leakage current in the capacitor. In addition, it also helps prevent oxidation of the anodic oxide on the aluminum foil, thereby increasing the lifespan of the capacitor.

In summary, URZ2E680MHD aluminum electrolytic capacitors are mainly applied in circuits such as DC/DC converters, audio amplifiers, power factor correction, motor drive, and voltage doubling circuits, owing to their small size, low ESR, and excellent capacitance. The working principle of the aluminum electrolytic capacitor is accomplished through the combination of an anodic oxide anode foil, aluminum foil, electrolyte, and voltage across the capacitor. The electrolyte serves dual purposes: it reduces leakage current in the capacitor while also preventing oxidation of the anode oxide.

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