EET-HC2V181HA

Aluminum Electrolytic Capacitors are devices commonly used to store electrical energy. They are used in a wide range of applications, from vehicle charging systems to industrial automation. The EET-HC2V181HA is one such device, designed for high-current applications such as automotive applications. This paper aims to discuss the application fields and working principle of the EET-HC2V181HA.The EET-HC2V181HA is an aluminum electrolytic capacitor designed for high-current applications. It has a maximum DC (continuous working) voltage of 1800V and a capacitance range of 0.1µF to 220µF. It is available in two versions, a radial (top-end) version and a snap-in (bottom-end) version. It is used in applications such as motor drives, frequency converters, UPS systems, industrial automation and automotive charging systems.The working principle of aluminum electrolytic capacitors is based on Faraday’s Law of Capacitance. When a voltage is applied across the capacitor, positive ions from the electrolyte solution migrate towards the negative electrode (the anode), and negative ions migrate towards the positive electrode (the cathode). This creates an electric field that stores energy. When the voltage across the capacitor is removed, the electric field dissipates and the charges move back to their original positions.The EET-HC2V181HA aluminum electrolytic capacitor is constructed from a three-layer structure of sand-blasted aluminum anode and cathode plates, and an electrolyte. The plates are wound with an aluminum foil and impregnated with a synthetic oil to maintain the capacitance during operation. The electrolyte is housed in an epoxy resin tube to provide protection from oxidation and corrosion. The capacitance of the EET-HC2V181HA is dependent on the distance between the anode and cathode plates, the dielectric constant of the electrolyte, and the area and thickness of the plates. In addition, the capacitance is also affected by the temperature and voltage, with higher temperatures and voltages resulting in higher capacitance values. At higher temperatures, the capacitance will tend to decrease as the electrolyte evaporates.The EET-HC2V181HA also features an over-temperature protection circuit to ensure safe operation up to a maximum temperature of 125°C. This circuit monitors the internal temperature of the capacitor and shuts down the device if the temperature exceeds the pre-determined limit.Overall, the EET-HC2V181HA is an aluminum electrolytic capacitor designed for high-current applications such as automotive systems, motor drives, and industrial automation. It has a maximum DC voltage of 1800V and a capacitance range of 0.1µF to 220µF. Its working principle is based on Faraday’s Law of Capacitance, and it features an over-temperature protection circuit to ensure safe operation.