861021484010

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Introduction

Aluminum electrolytic capacitors, commonly known as electrolytic capacitors, are electronic components sometimes used in mobile and portable electronics, usually for power supplies and filtering out noise. This type of capacitor is characterized by its large size, relatively low impedance (low ESR and high reactance at high frequency), superior internal voltage regulation, and significantly higher capacitance than other types of capacitors.

861021484010 Application Field

The 861021484010 aluminum electrolytic capacitor is a versatile part used in many different applications. One of the core functions of this part is filter networks. Low-pass, notch, and high-pass filters can all be made using the 861021484010 capacitor. Because of its size and consistency, the 861021484010 capacitor is also often used in power supply circuits and DC-DC converters.

Principle of Working

The principle of working for the 861021484010 aluminum electrolytic capacitor involves an anode, typically made of aluminum, a dielectric separator, usually made of a layer of aluminum oxide, and a cathode, usually made of a conductive film. When voltage is applied to the capacitor, positive charges flow from the anode to the dielectric, and then to the cathode. The dielectric stores the charge and maintains the electric field. Another effect known as the “double-layer” effect helps in efficiently conducting electricity.

Advantages of Aluminum Electrolytic Capacitors

There are several advantages in using aluminum electrolytic capacitors in electronic designs. The first is that they are generally inexpensive and widely available. They also offer much higher capacitance than other types of capacitors for a given size, and also have high ripple current capabilities. This makes them ideal for power supply and filter networks. Aluminum electrolytic capacitors have an indefinite shelf life, as long as they are kept in temperatures between -25 and 105 degrees Celsius and relative humidity between 5-95%. Finally, these capacitors offer good electrical stability and low equivalent series resistance.

Disadvantages of Aluminum Electrolytic Capacitors

Like all electrical components, aluminum electrolytic capacitors have some drawbacks. These parts are vulnerable to "power overshoot," which can cause the part to fail or drastically reduce its performance. Additionally, these capacitors tend to suffer from longer leakage currents than other types of capacitors. This can inhibit long-term performance. And finally, these capacitors suffer from significant temperature-related changes to their capacitance levels. This is why they must always be tested under actual operating conditions.

Conclusion

The 861021484010 aluminum electrolytic capacitor is an essential part of many mobile and portable electronic designs. It offers several advantages, most notably its high capacitance levels and resistance to power overshoot. However, it is also important to be aware of its drawbacks, such as its relatively high leakage currents and temperature-related changes. Understanding the application field and working principle of the 861021484010 aluminum electrolytic capacitor can help electronic design engineers optimize their designs for better performance and reliability.

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