LGJ2E151MELA15

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Aluminum electrolytic capacitors are generally classified in terms of performance and technology. The LGJ2E151MELA15 is an Aluminum Electrolytic Capacitor with a longer standby life. It is a special capacitor designed to provide the necessary power while also increasing energy efficiency. Its application fields and working principles will be discussed in this article.

Application Field

The LGJ2E151MELA15 is mainly used for high frequency noise filters, power line filters, low noise circuits, power supplies of all kinds of electronic equipment and other electrical and electronic products. It is extensively used in a variety of electronic circuit designs where the required high performance of the power sources or filtering is necessary. The maximum working voltage is 50 V, the capacity is 1500 μF, and the temperature range is -55℃ to +105℃.

Working Principle

Aluminum electrolytic capacitors, including the LGJ2E151MELA15, use aluminum as the anode of the capacitor. In order to increase the capacitance value of the capacitor, a porous oxidized film is used as the dielectric layer. The film is formed by immersing the aluminum foil in a solution of an electrolyte. The electrolyte then oxidizes the aluminum, forming an oxide layer. This oxide layer acts as a dielectric, allowing for a much larger capacitance value than what is possible with a non-oxidized aluminum foil. To increase the capacitance further, a spacer is placed between the two aluminum foils, which creates a higher capacitance value than what can be achieved with a single aluminum foil. Finally, the electrolytic fluid is sealed off with a plastic coating to insulate the capacitor from the ambient temperature.

When voltage is applied to the capacitor, electrons are flowing between the cap and the cathode, resulting in a change in capacitance. The capacitance value can also be affected by the temperature of the environment, due to the electrolyte\'s response to changes in temperature. Finally, as the aging of the capacitor increases, the capacitance value decreases.

In summary, the LGJ2E151MELA15 is an aluminum electrolytic capacitor with a longer standby life, providing the necessary power while also increasing energy efficiency. Its applications range from high frequency noise filters, power line filters and low noise circuits, to all kinds of electronic equipment and other electrical and electronic products. It is formed by two aluminum foils separated by an oxidized film, with an electrolyte sealed off with a plastic coating. When voltage is applied, the capacitance value is determined by the electrolyte\'s response to the environment and it also experiences gradual ageing over time.

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