450USG220MEFCSN25X35

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are polarized capacitors that use a chemical oxidation reaction at a thin oxide layer on aluminum foil as the basis of their capacitance. The oxide layer forms two electrodes with a large surface area and the oxide acts as an insulator between them.

The 450USG220MEFCSN25X35 aluminum electrolytic capacitor is designed for various applications such as switching power supplies, frequency converters, power amplifiers and switching systems. These capacitors provide superior energy density, low equivalent series resistance (ESR) and low leakage current compared to conventional aluminum electrolytic capacitors. These features make them ideal for applications that require high reliability and long life cycles.

Working Principle

Aluminum electrolytic capacitors can store electrical energy and are used in a variety of electronic applications. The capacitor consists of two electrodes, an anode and a cathode, separated by an electrolyte. When a voltage is applied to the electrodes, current flows due to the chemical reaction between the electrolyte and the electrodes. This chemical reaction creates a thin oxide layer on the aluminum electrodes and generates an electric field. This electric field between the electrodes causes a charge to build up, creating an energy storage and voltage regulating mechanism.

The capacitance of an aluminum electrolytic capacitor is determined by the area of the electrodes, and the thickness of the oxide film. When the applied voltage exceeds a certain threshold, the capacitor enters an overvoltage condition, where the current flow will cause the deposition of the aluminum electrode on the electrolyte and the development of an oxide layer. This process reduces the capacitance of the capacitor and can cause it to overheat and fail before reaching its designed lifetime.

Application Field

The 450USG220MEFCSN25X35 aluminum electrolytic capacitors are designed to handle up to 63V and offer a long lifetime and reliability. These capacitors are mainly used in switching power supplies, frequency converters, power amplifiers and switching systems, as well as other applications where long life and reliability are essential. They are suitable for automotive, medical and military applications, as well as other challenging environments.

The 450USG220MEFCSN25X35 aluminum electrolytic capacitor has a high equivalent series resistance (ESR) rating, making it ideal for power supplies and switching systems that require high-frequency stability. Additionally, the device offers low impedance and low leakage current, ensuring reliable operation. The device is also RoHS compliant, making it suitable for use in a variety of environments.