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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of capacitor created by using an electrolyte liquid as the dielectric material and aluminum as the conductor. These capacitors can contain different chemical and organic electrolytes, among which the most popular ones are tetrafluoroethane (TFE), trichloromethane (TCM) and ethylene glycol (EG) as well as sodium bicarbonate (SBC) and ammonium bicarbonate (AB) solutions. The electrolyte is usually a film or fluid sandwiched between the two electrodes of the capacitor. The charged plate is a thin metal foil, a dielectric (insulating) layer and the second electrode, which is a conductive metal foil. Aluminum electrolytic capacitors are one of the most commonly used capacitors in electronic systems due to their high capacity and low cost.

420KXW33MEFC10X40 Application Field and Working Principle

420KXW33MEFC10X40 aluminum electrolytic capacitor is a Standard Non-Polarized Capacitor with red and black marked, 4mm-long cap and a 10mm pitch between terminals. It is a chosen device in many applications. This type of aluminum electrolytic capacitor is a radial leaded device and has a wide selection of capacitance values and voltage ratings. It is primarily used in power switch circuits, timing circuits, filter circuits, electrolyte charge/discharge protection circuits and tubes and memory circuits.

The working principle of 420KXW33MEFC10X40 aluminum electrolytic capacitor is based on Faraday’s law of electrolysis which states that the amount of charge produced by a cell is directly proportional to the quantity of electricity passing through it. It works by allowing electrons to flow freely across the two electrodes in an electric current, while preventing the current from being interrupted in the opposite direction. This action creates an electric field between the electrodes and when the electric field is strong enough, the capacitor can store energy for a period of time. The amount of energy stored depends on the total capacitance of the capacitor, which is determined by its size and construction.

The design of 420KXW33MEFC10X40 aluminum electrolytic capacitor is optimized for high temperature and long life performance. Its multilayer aluminum and stainless steel construction offers high reliability and stability, and the capacitor uses a zinc alloy-based dielectric insulation and corrosion-resistant materials, ensuring low leakage current up to 2000hrs.

420KXW33MEFC10X40 aluminum electrolytic capacitor is suitable for a wide range of applications, such as in air conditioners and pumps, high voltage inverters, audio-video signal processing and industrial circuits, power supplies, switch-mode power conversion and LED lighting.

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