ELXM421VSN121MQ30S

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Aluminum Electrolytic Capacitors are widely used in many fields due to their excellent performance and reasonable price. The ELXM421VSN121MQ30S is one of the aluminum electrolytic capacitors which is specifically designed for industrial and automotive applications. This capacitor has a wide temperature range of -40° to +85° C, excellent ripple current capability and long-term stability, making it suitable for various applications. In this article, we will discuss the application field of ELXM421VSN121MQ30S and its working principle.

Application Field of ELXM421VSN121MQ30S

The ELXM421VSN121MQ30S is especially suitable for applications where size is important and performance needs to be optimized. It is designed for a wide temperature range so that it can function in harsh environments. It features capacitance values from 33µF up to 4700µF, making it perfect for filters, decoupling capacitors, and energy storage applications, such as AC-DC converters, DC-DC converters, LED drivers, and SMPS. Furthermore, its low current leakage and high ripple current capability ensure that it can absorb current surges and power fluctuations, minimize power supply noise and ensure continuous reliable operation.

Working Principle of ELXM421VSN121MQ30S

The ELXM421VSN121MQ30S is a type of aluminum electrolytic capacitor which is composed of two aluminum foil layers separated by an electrolyte solution. One of the foil layers is coated with a dielectric material while the other is connected to a metal terminal. When a voltage is applied across the terminals, ions from the electrolyte solution flow towards the cathode and form a thin layer known as a “charge layer”. This layer stores the energy which is then released when the capacitor is disconnected from the power supply. The properties of this charge layer determine the capacitance of the capacitor, which is the measure of how much charge (electricity) it can store.The capacitance of an electrolytic capacitor is determined by the thickness of the charge layer, as well as the surface area of the electrodes. As the thickness increases, the capacitance gets higher. Similarly, if the area of the electrodes increases, the capacitance will increase too. Additionally, temperature also affects the capacitance of an electrolytic capacitor. At lower temperatures, the capacitance increases, while at higher temperatures it decreases.

Apart from the capacitance, the other important parameters of an electrolytic capacitor are its ripple current capability and its life span. The ELXM421VSN121MQ30S is designed to provide long-term stability and excellent ripple current capability, making it suitable for power supply noise suppression applications. It can also withstand up to 105°C junction temperature and has an extended life span of over 2000 hours at 105°C.

Conclusion

In conclusion, the ELXM421VSN121MQ30S is a type of aluminum electrolytic capacitor which is specifically designed for industrial and automotive applications. It features a wide temperature range of -40° to +85° C, excellent ripple current capability, low current leakage and an extended life span of over 2000 hours at 105° C. Its capacitance can range from 33µF up to 4700µF and it is suitable for filters, decoupling capacitors, and energy storage applications. Overall, the ELXM421VSN121MQ30S provides an excellent solution for a variety of applications.

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