EPAG451ELL680ML35S

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Aluminum electrolytic capacitors are widely used electronic components, and the EPAG451ELL680ML35S type is one of the most popular. It has an extremely wide application field and unique working principle.

Primarily, the EPAG451ELL680ML35S is used in noise filters, power supplies, switching power supplies, and DC-DC converters. It can also be found in the front-end or back-end of audio amplifiers, for frequency dividers, and other basic circuit functions. Additionally, its wide temperature range, small temperature drift, large current capacity, and high-temperature stability worth noting. Thanks to this, this type of capacitor finds use in various industries including telecommunications, automotive electronics, and consumer electronics.

The unique properties of aluminum electrolytic capacitors depend on the different construction. Compared to other capacitors such as ceramic capacitors, its construction is relatively complex and mainly consists of three parts: the anode foil, a separator impregnated by a liquid electrolyte, and a cathode foil. Generally, the anode foil is made of aluminum and also functions as the terminal. The separator and the cathode foil are also made of aluminum. The separator is impregnated by a liquid electrolytic solution to form an electrolytic film on the anode, making it the dielectric. The cathode is connected to the aluminum shell, serving as the negative terminal of the capacitor. The anode and cathode terminals are then connected to create a conducting path, forming the envelope of the capacitor.

The working principle of the EPAG451ELL680ML35S is simple but ingenious. When no voltage is applied, the electrons in the anode and cathode remain in balance. But once a voltage is applied across the terminals, the electrons in the ions in the liquid electrolyte generate polarization according to the Faraday law. This polarizes the anode and cathode, creating a potential difference between them. But at the same time, it creates an “opposing” voltage that counters the applied voltage and thus reduces its value. Therefore, this design enables the capacitor to protect the circuit from voltage surges.

In summary, the EPAG451ELL680ML35S is an excellent example of an aluminum electrolytic capacitor. It boasts superior performance and numerous applications. Its unique construction and working principle make it an important and irreplaceable component of many circuits.

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