UHW1H391MPD1TD

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Aluminum Electrolytic Capacitors are frequently used electronic components, with thousands of different types available for a variety of applications. The UHW1H391MPD1TD is one such component, and this article will provide an overview of the application field and working principle of this capacitor.

The UHW1H391MPD1TD is an aluminum electrolytic capacitor which is composed of two aluminum foil electrodes separated by a thin aluminum oxide film. It is rated for use in a wide temperature range of -40 to +85°C and has a rated capacitance of 390μF at a rated voltage of 25V. It has a tolerance of 20% and an operating life of 2000 hours at 85°C. Due to its low cost and wide temperature range, the UHW1H391MPD1TD is a popular choice for automotive and entertainment electronics.

The capacitance of an aluminum electrolytic capacitor is determined by the area of the aluminum foils and the thickness of the electrolyte film. When voltage is applied to the capacitor, the electric field produced induces electrons in the electrolyte film and a current flows through the capacitor. This current, known as the Faraday current, combines with ions in the electrolyte to form an electrolyte layer which increases the capacitance of the capacitor. This process is known as “electrolyte adsorption”, and it is very effective in increasing the capacitance of aluminum electrolytic capacitors.

The UHW1H391MPD1TD is an ideal choice for applications that require a wide temperature range and high-capacity capacitance. It is commonly used in automotive ignition and audio/video systems as well as in telecommunications and industrial equipment. It is also well suited for applications that require smooth, steady power, such as converters and inverters. Additionally, its low cost and low self-discharge make it a good choice for power storage.

Due to its self-healing properties, the UHW1H391MPD1TD also makes an excellent choice as a safety component in electronic designs. Its ability to reform after short-circuiting makes it a valuable protection against potentially damaging over-voltage, over-current, and even corrosion.

In summary, the UHW1H391MPD1TD is an aluminum electrolytic capacitor with a wide temperature range and excellent capacitance characteristics. It is ideal for use in automotive, telecommunications, and industrial applications, and can provide protection against over-voltage, over-current, and corrosion.

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