250TXW68MEFR8X50

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Aluminum electrolytic capacitors, or Al-electrolytic capacitors, are a type of capacitor that uses a thin layer of aluminum oxide as a medium to store a charge. They are typically used in high-voltage and low-voltage electronics like power systems, motor drives, LED lighting, and circuit protection. The part number 250TXW68MEFR8X50 is a large surface-mount aluminum electrolytic capacitor used in power converter applications.

Construction

An aluminum electrolytic capacitor contains two metal plates. The anode plate is made from aluminum foil that is etched to increase its surface area. The anode is immersed in an electrolyte that can be solid or liquid. The cathode is a thin layer of aluminum oxide that acts as the dielectric. A separating layer is added between the anode and cathode which serves as a barrier to prevent a short circuit. The capacitor can then be covered in a non-conductive sleeve, which can be an aluminum or polyester film. As with all capacitors, the 250TXW68MEFR8X50 has two terminals which represent each plate.

Working Principle

The working principle of an aluminum electrolytic capacitor is based on the electrical double layer (EDL) theory, also known as the Helmholtz double layer. When a voltage is applied to the capacitor, the anode will release a number of electrons into the electrolyte, which is absorbed by the cathode, forming a charge-separation layer. The situation is similar to how water droplets form an insulating layer which prevents two metal plates from touching each other. The EDL acts as an insulating layer between the anode and cathode, and this forms a time-constant layer of stored electrical energy which allows the capacitor to act as a charge store.

Advantages of Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors have several advantages over other types of capacitors. They offer high capacitance, which makes them suitable for use as a charge store. They also offer high dielectric strength to prevent shorts. Aluminum electrolytic capacitors are also low cost, making them an ideal solution for applications that require a large amount of capacitance at a low cost. In addition, they are reliable and long-lasting due to the strong oxide layer that prevents corrosion.

Applications of 250TXW68MEFR8X50

The 250TXW68MEFR8X50 is a high-voltage aluminum electrolytic capacitor, designed for use as a charge store in power converters. It is typically used in AC/DC converter applications to provide voltage smoothing, noise filtration, and EMI/RFI suppression. It is also often used in inverter and motor drives, LED lighting, and other high-voltage applications.

Conclusion

Aluminum electrolytic capacitors are a reliable and cost-effective way to store a charge in power converter applications. 250TXW68MEFR8X50 is a high-voltage aluminum electrolytic capacitor specifically designed for use in power converters. It offers high capacitance and high dielectric strength, making it an ideal solution for applications that require a large amount of capacitance at a low cost. It is also reliable and long-lasting due to the strong oxide layer that prevents corrosion.

The specific data is subject to PDF, and the above content is for reference