ECO-S2DB821CA

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Aluminum electrolytic capacitors are electronic components widely used in various circuits. ECO-S2DB821CA is one of the most common types of aluminum electrolytic capacitor. In this paper, we will analyze its application field and working principle.

ECO-S2DB821CA is a spontaneously polarized aluminum electrolytic capacitor. It is a positive lead type, with a capacitance of 220uF, rated voltage of 85V and a maximum operating temperature of 70℃. The core of the capacitor is composed of an anode of aluminum foil with an oxide layer and a cathode of electrolytic paper. It is round-shaped and encapsulated in a high-grade flame-resistant plastic casing, with poles of 4*6mm and 10*15mm. It also has a long service life and low ESR value, making it an ideal replacement for other aluminum electrolytic capacitors.

ECO-S2DB821CA is mostly used in electronic circuits as active components, such as audio systems, power supply systems, voltage stabilization systems, DC-DC converters, and relays. The aluminum electrolytic capacitor can store electromagnetic power or current and filter out high-frequency signals. It belongs to a high-precision capacitance, small volume, and light weight type, making it suitable for various circuit applications.

The working principle of ECO-S2DB821CA is simple. When direct current (DC) is applied to the anode and cathode of the capacitor, the current flows through the electrolyte and causes oxidation of the anode. As the anode begins to oxidize, a double layer of electrons and ions is formed on its surface. This layer of electron-ion pairs creates an electrostatic field between the anode and the cathode, which causes electrical energy to be stored in the capacitor. The ability of the capacitor to store electrical energy is proportional to the thickness of the oxide layer.

In conclusion, ECO-S2DB821CA is one of the most common types of aluminum electrolytic capacitor used in various electronic circuits. It is a spontaneously polarized capacitor with a long service life, low ESR value, and high-precision capacitance. Its working principle is simple, the current causes oxidation of the anode to form an electrostatic field between the anode and the cathode, resulting in electrical energy being stored in the capacitor. ECO-S2DB821CA is an ideal replacement for other aluminum electrolytic capacitors and it can be widely used in various applications.

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