861021485026

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are often abbreviated as “al-caps” and are most commonly used in energy-efficient electric devices like computers, mobile phones and power tools. These capacitors have a low cost and are energy-efficient, with a wide range of applications in various electrical circuits.

861021485026 Application Field and Working Principle

The 861021485026 aluminum electrolytic capacitor is a negative polarity smd capacitor that is designed for switching power supplies. It has excellent ripple current capabilities and a high voltage rating. Due to its small size, the 861021485026 capacitor is ideal for applications where space is a constraint, such as in laptop and cellphone chargers. The 861021485026 has a rated voltage of 50 to 500 volts and a capacitance of 18 μF to 470 μF.

Aluminum electrolytic capacitors have a simple working principle. The cathode of the capacitor is a thin aluminum oxide film on the surface of an aluminum foil. This forms the core component of the capacitor. The anode is attached to the aluminum foil via a conductive bridge that serves as the connection between the two. When a voltage is applied to the capacitor, a small current flows through the bridge, and a layer of aluminum oxide is formed on the surface of the aluminum foil.

The formation of the aluminum oxide layer causes a change in the capacitance, which affects the operation of the capacitor. The capacitance of the aluminum electrolytic capacitor is determined by the size of the oxide layer formed on its surface. The capacitance is proportional to the thickness of the aluminum oxide layer and inversely proportional to the surface area of the aluminum foil, and it is typically around 10 to 100 times higher than other types of capacitors.

The 861021485026 aluminum electrolytic capacitor is suitable for applications like switching power supplies, DC-DC converters, output filtering, voltage stabilization and motor control. The capacitor can handle up to 70% higher currents at the same voltage compared to traditional capacitors, and its temperature range is -40°C to +85°C. It provides excellent ripple current capabilities and high voltage ratings, making it an ideal choice for high-current applications.

The 861021485026 aluminum electrolytic capacitor is a reliable and energy-efficient component that is widely used in various electrical circuits. Its small size, high current ratings and excellent ripple current capabilities make it an ideal choice for space-constrained applications like laptop and cellphone chargers. With its wide range of applications, the 861021485026 aluminum electrolytic capacitor is one of the most widely used capacitors today.