25WXA470MEFC10X9

Aluminum electrolytic capacitors are widely used in electronics and electrical engineering applications due to their low cost and high capacitance. The 25WXA470MEFC10X9 series of aluminum electrolytic capacitors is a popular and reliable choice for a variety of applications. In this article, we will discuss the application field and working principle of the 25WXA470MEFC10X9 series of aluminum electrolytic capacitors.

General Specifications

The 25WXA470MEFC10X9 series of aluminum electrolytic capacitors are all rated for 105°C operation and boast an extended life of up to 4,000 hours under normal operating conditions. The capacitors have a maximum DC leakage current of 0.07 CV and come in a variety of sizes and voltage ratings ranging from 4 to 63V. Ancillaries such as snap-in-mounts, clamps, and hardware can also be purchased for added convenience.

Application Field

The 25WXA470MEFC10X9 series of aluminum electrolytic capacitors have a range of usages throughout the electronics and electrical engineering industry. The incredibly long lifetime of 4,000 hours makes them ideal for use in machines that may need to be running 24/7 such as servers, PCs, routers, and various kinds of industrial machinery. The capacitors are also small and lightweight, making them easy to install and include in complex designs. They offer reliable performance in a wide range of operating environments with temperature ranges of -40 to +105°C and operating frequencies up to 400 Hz.

In terms of specific applications, the 25WXA470MEFC10X9 series of aluminum electrolytic capacitors are suitable for use in general smoothing and bypasscircuits, output smoothing, AC adapters, power supplies, converters, inverters, switched mode power supply applications, and low-voltage DC/DC converters.

Working Principle

Aluminum electrolytic capacitors such as the 25WXA470MEFC10X9 series rely on the Faraday Effect to store electrical charge. This principle relies on the fact that when a voltage is applied to the capacitor, a layer of ions forms on the porous surface of the Anode plate. The Anode plates are made of aluminum foil, while the Cathode plates are typically made of an aluminum hydride mixed with RC value-paced holes. In between these plates is a electrolyte solution which helps to dissolve the ions.

In operation, the positive ions of the electrolyte solution are attracted to the negative voltage of the Cathode plates and attach themselves to the Aluminum hydroxide surface. This causes the Anode plates to be positively charged, while the Cathode plates remain negatively charged. The ions that form between the plates create an electric field, while the capacitors capacitance is determined by the total area of the Anode plate and the electrolyte’s resistance to the flow of ions.

The rated values for aluminum electrolytic capacitors such as the 25WXA470MEFC10X9 series are typically determined using a life test. During a life test, the capacitors are tested for their rated temperature and operating time, with the capacitance being tested at every 200 hours of operation. The capacitance values must remain constant for at least the first 1, 000 hours of the life test in order for the capacitor to be approved for sale.

Conclusion

The 25WXA470MEFC10X9 series of aluminum electrolytic capacitors offers a versatile and long-lasting solution for a variety of electronic applications. With a 4,000 hour operating life, low DC leakage current, and temperatures range of -40 to +105°C, the capacitors are suitable for a wide range of user’s requirements. Additionally, the capacitors’ Faraday Effect working principle makes them incredibly reliable, offering a reliable source of electrical energy over long periods of time.