EKZH350ELL391MH20D

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Aluminium electrolytic capacitors are energy storage components made from aluminium with an oxide layer on the surface of the aluminium. They are often seen in DC/AC circuits, where they typically store energy for a short period of time. The application fields and working principle of the EKZH350ELL391MH20D is explored in this article.

Application Field

The EKZH350ELL391MH20D is an Aluminum Electrolytic Capacitor from KEMET with a voltage rating of 200V (DC) and 350V (AC). This makes it suitable for a range of industrial applications such as electrical protection, transient protection and DC/DC converters. It also has a high insulation resistance and will not self-heat, which makes it suitable for use in high temperature environments. It has a wide operating temperature range of -55˚C to +125˚C, so it can be used in demanding applications such as automotive and aviation.

The EKZH350ELL391MH20D has a capacitance range of 390µF and an impedance of 0.14 Ohm. This makes it an excellent choice for applications requiring high capacitance with low impedance, such as pulse power, motor control and power factor correction.

Working Principle

The working principle of the EKZH350ELL391MH20D is based on the electrical property of a capacitor. When a DC voltage is applied across the capacitor’s terminals, it will store energy in the form of an electric field. The amount of energy that can be stored is directly proportional to the applied voltage and the capacitance of the capacitor. The higher the voltage and the higher the capacitance, the more energy can be stored in the capacitor.

The EKZH350ELL391MH20D also has an inherent voltage dependent current limiting feature. This is due to an increase in impedance at high voltage. As the voltage increases, the impedance increases which leads to a decrease in current and thus limits the maximum current the capacitor can supply. This is an important feature for applications that require low voltage drop and reliable current limiting.

Aluminium electrolytic capacitors are widely used in a variety of applications due to their reliable performance and wide range of available sizes and types. The EKZH350ELL391MH20D is an excellent example of a high-quality, reliable aluminum electrolytic capacitor. It has a wide range of capabilities, making it suitable for a variety of applications.

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