LQS2W391MELB50

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Aluminum electrolytic capacitors are widely used in signal filtering, frequency selection, output coupling, bypass, storage, blocking stabilization in electronic circuits, and are used together with resistors, inductors, and semiconductors to form various kinds of hybrid integrated circuits. The LQS2W391MELB50 is an example of a high-performance aluminum electrolytic capacitor type that offers stronger current withstand capability with improved life time reliability, higher voltage, and better stability. Of particular note is its useful operating temperature range from -55°C to +105°C.

Application Field

The LQS2W391MELB50 aluminum electrolytic capacitor is a suitable choice for commercial and industrial applications, and other applications that require a reliable and robust solution. It is designed to hold up in a variety of extreme environmental conditions and demanding application scenarios. Typical applications for this aluminum electrolytic capacitor include motor drives, RF communications, audio, lighting control systems, LEDs, HVAC systems, and other consumer electronics.

Working Principle

An aluminum electrolytic capacitor is structured like a normal capacitor, with two electrodes between an insulating dielectric. The main difference is that the dielectric in an aluminum electrolytic capacitor is a thin layer of oxide formed by electrolysis, typically an anodized aluminum foil. It is this very thin and high resistance layer that forms the basis for dielectric strength and reliability.

At the most basic level, aluminum electrolytic capacitors work by using an electrical charging current to create a potential difference between the two opposing electrodes. This potential difference is held steady, even after the charging current is removed, since the aluminum oxide layer is a strong dielectric. The capacitance value of aluminum electrolytic capacitors can be as high as 1000 times more than that of a normal capacitor due to the thinness of the aluminum oxide layer. In addition, aluminum electrolytic capacitors are known to have good frequency characteristics and be resistant to changes in temperature and humidity.

Conclusion

The LQS2W391MELB50 aluminum electrolytic capacitor is a versatile and robust component suitable for a wide range of applications. Its dielectric strength, capacitance value, and frequency characteristics are well suited for difficult, demanding environments and applications. With its broader temperature range and increased current capacity, it provides reliability and robustness even in the harshest of conditions.

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