MAL219877121E3

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Aluminum electrolytic capacitors are electrical components designed for energy storage applications. This type of capacitors is made of two concentric plates of aluminum or some other metal and an electrolyte. One plate of the capacitor is connected to the positive side of the power source and the other plate is connected to the negative side of the power source. The electrolyte then helps to hold a voltage difference between the two plates, thereby providing a storage of energy.

The MAL219877121E3 is an aluminum electrolytic capacitor with conductive polymer. This capacitor is characterized by long life, high ripple current, low ESR, and few leakage current. The rated voltage is 160V DC, the capacitance is 560uF, and the size is 18.3x25.8mm (L x W). This capacitor is widely applied in various applications, such as switching power supply, LCD TVs, medical equipment, digital cameras, and home appliances. It is also suitable for high temperature environment and used as a bypass capacitor.

The working principle of an aluminium electrolytic capacitor is based on Faraday’s law of electrolysis. According to the law, when a voltage is applied between two electrodes separated by an electrolyte, current is created between them which ionizes the electrolyte and causes chemical deposition on the surface of the electrodes. Thus, an aluminium electrolytic capacitor consists of a single layer of metal oxide which is deposited on the surface of an aluminium foil. The metal oxide acts as an insulator which creates an electrical capacitance between the two aluminium plates, thus allowing the capacitor to store energy.

In construction, the aluminum electrolytic capacitors consist of a winding made up of thin layers of an oxide-coated aluminium foil, with the anode connected to the inner terminal and the cathode connected to the outer terminal. A separator is inserted between the two foils and is permeated with liquid electrolyte to form a capacitor housing that encloses the oxide and electrolyte layers.

The capacitance of an aluminium electrolytic capacitor is determined by its construction. The volume of the capacitor and the electrolyte used determines its surface area. The dielectric constant of the oxide determines the capacitance and the size of the oxide determines its leakage current. Furthermore, the temperature coefficient, dissipation factor, and ripple current also influence the capacitance of the capacitor. The life of the capacitor is determined by its operating voltage, capacitance, and temperature.

In summary, the MAL219877121E3 aluminum electrolytic capacitor is widely applicable in various applications, with the rated voltage of 160V DC and capacitance of 560uF. It is characterized by long life, high ripple current, low ESR, and few leakage current, and is suitable for high temperature environment. It works according to Faraday’s law of electrolysis, based on a single layer of oxide-coated aluminium foil between two electrodes, which allows it to store energy.

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