SLP821M250E4P3

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Aluminum electrolytic capacitors are widely used in electronic products, power supply/conversion/transmission systems and various instruments, because of its low cost, large capacity, long life and good temperature characteristics. The SLP821M250E4P3 series is a radial lead aluminum electrolytic capacitor, which is recognized as one of the excellent product series of aluminum electrolytic capacitors due to its high quality and high product reliability. This article will discuss the application field and working principle of the SLP821M250E4P3 series.

Application Field

The SLP821M250E4P3 series aluminum electrolytic capacitor is a type of high-performance polarized capacitor, with a wide range of uses in electronic circuits. It is most commonly used for decoupling and bypass applications, but also for filtering, buffering, and noise elimination. With a working voltage range of 20 to 100 V, it is suitable for various operating and environmental conditions. It is also one of the most widely used aluminum electrolytic capacitor series in electric power and UPS systems. In addition, the series is a popular product in energy-saving, environmental protection and new energy vehicles, as it can provide a high degree of reliability and large storage capacity.

Working Principle

The SLP821M250E4P3 series aluminum electrolytic capacitors are fixed-pressure type polarized capacitors. The structure of these capacitors is composed of three layers: the anode layer (aluminum foil, the container), dielectric layer (aluminum oxide film) and the cathode layer (wet electrolytic paper/ electrode metal poles). The whole capacitor element is composed of two metal plates, namely anode metal plate and cathode metal plate. There is a certain distance between them, while the electrolyte solution is impregnated in the metal plate gap, and it acts as the dielectric medium between the metal plates.

The capacitance of an aluminum electrolytic capacitor is determined by the area of both metal plates and the dielectric layer, which is an insulating aluminum oxide film. When the voltage is applied between the two metal plates, an electric field is generated in the dielectric layer. Under the electric field, the oxide film is polarized and forms a space charge layer in the oxide film, thus forming a capacitor.

The SLP821M250E4P3 aluminum electrolytic capacitor has a low equivalent series resistance (ESR) and low equivalent series inductance (ESL) values, so it shows excellent electrical characteristics. This series has a long service life and a large capacitance, making it ideal for power supply and conversion in many applications.

In conclusion, the SLP821M250E4P3 series aluminum electrolytic capacitor is an excellent product with various applications. It has a wide operating temperature range, long service life and low ESR/ESL values. Due to its excellent performance and reliability, it is widely used in electric power , UPS systems, energy-saving and environmental protection, and new energy vehicles.

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