400USG120MEFCSN20X30

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Aluminum electrolytic capacitors are one of the most widely used capacitors in electrical and electronics, because their features provide excellent performance, size, stability, and reliability. They are the preferred choice for many applications in the world, including in automotive, consumer electronics, personal computers, medical equipment, telecommunication, and audio systems. The 400USG120MEFCSN20X30 aluminium electrolytic capacitor is a popular type of electrolytic capacitor that has high rated voltage and is used for a variety of applications.

The core of an aluminum electrolytic capacitor consists of aluminum foil with etching pattern and a thin oxide layer. When high voltage is applied to them, the oxide layer and the etching pattern enable high capacitance values. The function of the oxide layer is to maintain the electric field in the gap between the layers, and to prevent a discharge to the ground in the case of small short circuits and noise spikes. A typical 400USG120MEFCSN20X30 aluminium electrolytic capacitor consists of two electrically connected aluminum foils with different etching patterns and a separator between them. This separator can be either a polymer film or a paper-like material.

The 400USG120MEFCSN20X30 aluminum electrolytic capacitor is a high voltage type electrolytic capacitor that is designed to operate at a voltage of up to 400V. It has a capacitance of 120µF and a dielectric strength of 300V/μm. The characteristic of the capacitor can be described in terms of two parameters: the load lifetime and the temperature coefficient of capacitance. The load lifetime defines how long the capacitor can function in terms of its capacitance values, and the temperature coefficient of capacitance defines the rate of change of capacitance when the temperature changes.

The applications of 400USG120MEFCSN20X30 aluminum electrolytic capacitors mainly depend on their capacity, voltage, temperature coefficient, temperature range, and leakage current. These electrical components are mainly used for capacitive filtering, resonance tuning, signal filtering, high-frequency pulsed power supply, and course compensation. As such, they are commonly found in a variety of electronic products, from AC drives to mobile phones.

The working principle of the 400USG120MEFCSN20X30 aluminum electrolytic capacitor is extremely simple. It is a two-terminal, air-filled capacitor with an etching pattern, which helps increase capacitance and efficiency. When voltage is applied through the terminals, an electric field is created that causes the oxide layer to polarize and form a very high capacitance value. The two electrodes are also connected by an ionic current, which helps to increase the capacitance.

In conclusion, the 400USG120MEFCSN20X30 aluminum electrolytic capacitor has several advantages over traditional capacitors, such as high capacitance in a small size, high voltage rating, long life, good temperature coefficient, robustness, and low leakage current. These qualities make the capacitor ideal for a variety of applications. It is particularly popular in AC drives, UPS systems, power supplies, and signal filtering, where its size, stability, and reliability can be relied upon.

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