200CFX68MEFC12.5X25

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Aluminum electrolytic capacitors are one of the most common type of capacitors used in power electronic applications. 200CFX68MEFC12.5X25 is an example of an aluminum electrolytic capacitor that is frequently used in power supplies, DC-DC converters, voltage regulators, solar power converters, motor drives, lighting systems, and other industrial and consumer electronics. In this article, we\'ll explore the application fields and working principle of 200CFX68MEFC12.5X25.

Application Fields

200CFX68MEFC12.5X25 is designed for power electronic applications, primarily in high-frequency DC-DC converters. It has a rated voltage of 400V, and it can handle currents of up to 90A. This capacitor is also well-suited for use in high-power LED circuits, as its low ESR and low impedance make it ideal for these applications. The combination of its high capacitance and low ESR (equivalent series resistance) also makes it a good choice for high-power audio amplifiers and switched-mode power supplies. In addition to these applications, 200CFX68MEFC12.5X25 is an excellent choice for voltage stabilization in industrial and consumer electronics.

Working Principle

Aluminum electrolytic capacitors operate on the principle of "chemical double-layer capacitance." When an electric field is applied across two electrodes, ions in the electrolytic solution move to form a double layer on the surface of each electrode. This double layer acts as an insulating layer that stores energy and holds the voltage across the electrodes. The stored energy is then released when the electric field is removed. This is the basic principle that underlies the operation of all electrolytic capacitors, including 200CFX68MEFC12.5X25.

In the case of 200CFX68MEFC12.5X25, the capacitance is formed by a combination of a tantalum anode and a special electrolytic solution. The anode is composed of a high-surface-area tantalum salt, which acts as a "catalyst" to form a double layer of ions on the anode surface. The electrolytic solution is composed of a mixture of organic solvents and metal halides. The metal halides form a "protective" layer on the surface of the anode, which helps to prevent corrosion and increases the capacitance of the device.

Thus, the working principle of 200CFX68MEFC12.5X25 is based on the principle of chemical double-layer capacitance. The tantalum salt anode and the special electrolytic solution cooperate to form an insulated double layer of ions that stores and releases energy, thus providing the capacitance that is needed in power electronic applications.

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