B43642A9337M000

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are widely used in electronic designs for coupling, decoupling, blocking and filtering. Due to their high capacitance per unit volume and relatively low cost, such capacitors are the most widely used type of capacitor in the electronics industry. The B43642A9337M000 aluminum electrolytic capacitor is a snap-in type with a rated voltage of 500V DC, operating temperature range of -55°C to +125°C, and a life of 1000hours at 120°C. This capacitor also features a leakage current of 0.1CV or less after 5 minutes’ charging.

Application Field

The B43642A9337M000 aluminum electrolytic capacitor is applicable in a variety of different fields. Its wide operating temperature range allows it to be used in automotive, industrial and medical systems, where temperature-variability is an important factor. It offers high capacitance-density, good long-term stability and performance, making it suitable for application in consumer electronics, professional audio, measuring and control equipment, electrical measuring instruments and AC filter systems. Furthermore, its long service life and high rated life, combined with its long-term stability and performance, enable it to be used in a wide range of applications, including power supplies, standby power supplies, data-logging systems and battery-charging systems.

Working Principle

An aluminum electrolytic capacitor consists of an anode, a dielectric, a cathode, a metal housing and two external leads. The anode is a metal oxide foil surrounded by an electrolyte made of dissolved chemical salts in a liquid medium. The electrolyte provides an electrolyte path between the top and bottom of the anode. The dielectric is a thin, non-conducting film that separates the cathode and anode and blocks the flow of direct current (DC), but allows for an induced electric current. The cathode is a layering of aluminum plates that are insulated with an acceptable insulating material. The housing is typically made of aluminum, and acts as the insulating element as well as the structural component of the capacitor. The two external leads are copper for the lower voltage models, but silver is used for higher voltage models.

The operation of an aluminum electrolytic capacitor is based on Faraday’s law, which states that when a potential difference (voltage) is applied across an electrolytic, an electric field is induced, which causes a current to flow. This electric field is responsible for establishing the charge to the capacitor plates and is proportionate to the voltage applied. The capacitance is determined by the amount of charge stored in the capacitance, which is determined by the geometric configuration of the plates and the dielectric between them.

The B43642A9337M000 aluminum electrolytic capacitor offers excellent performance in terms of long-term stability, high rated voltage and long rated life. With its wide application field, this capacitor is a great choice for many types of circuits and systems. Its high capacitance-density and good long-term stability make it a reliable and cost-effective choice for many applications.

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