VPR681U075N2C

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Aluminum electrolytic capacitors (AECs) are a type of capacitor, typically with a cylindrical shape and a large capacitance value. They are used for a range of applications and are commonly found in electronic equipment such as computers, televisions, and other consumer electronics, as well as medical devices, automobiles, and industrial machines. The VPR681U075N2C is a type of AEC, designed for low ESR and high capacitance, among other features.

The VPR681U075N2C, manufactured by Vishay Intertechnology, is a type of aluminum electrolytic capacitor. It is an electrolytic capacitor with a long life, featuring a lead-free termination, a voltage up to 63 V, and a capacitance range of 10 to 6800 µF. These characteristics are reflected in its dimensions, which for this component are 18.0 mm x 22.5 mm.

This capacitor is specifically designed for applications in which low ESR is required, such as audio and high-frequency regulation applications. It is designed in a way that minimizes the effects of heat stress on the capacitor, which results in a longer life and higher reliability. It also exhibits minimal ESR variation over a wide temperature range (-55°C to +125°C).

The working principle of aluminum electrolytic capacitors is based on the use of an electrolyte as the dielectric material. This electrolyte consists of aluminum oxide, which is formed by anodizing the aluminum plate used as the cathode. When a voltage is applied across the terminals of the capacitor, current flows and ions move through the electrolyte to form an electric field between the electrodes. This electric field provides the capacitance of the capacitor.

The capacitance of this type of capacitor is determined by the area of the plates, the distance between the plates, and the dielectric constant of the electrolyte. The dielectric constant is determined by the type of electrolyte used and the amount of impurities present in the electrolyte. As the voltage across the capacitor increases, more ions move towards the anode and the capacitance increases. Conversely, as the voltage decreases, the capacitance decreases.

The VPR681U075N2C has been designed to provide a reliable capacitance for high-current applications, with a maximum ripple current of 4 A and a temperature coefficient of capacitance of -130 ppm/°C. Its long life and low ESR characteristics make it ideal for applications such as automotive, industrial, and medical electronics, as well as audio and other high-frequency regulation applications.

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