25YK470MEFC10X12.5

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Aluminum electrolytic capacitors, also known as ‘aluminum electrolytic caps’, are an important component of electric and electronic circuits. They are used in a wide range of applications, from high-power amplifier circuits to electrostatic discharge (ESD) protection, voltage regulation, and noise filtering. An aluminum electrolytic capacitor with unique code 25YK470MEFC10X12.5, is no exception. This article aims to explain the application field and working principle of this particular type of aluminum electrolytic capacitor.

Application Field:

The 25YK470MEFC10X12.5 aluminum electrolytic capacitor is a highly reliable, robust capacitor designed to operate over an extended temperature range (-40°C to +85°C) and at higher ripple currents, making it suitable for use in high-reliability environments. It is designed primarily for use in power-supply circuits for high-power and high-frequency power-supply conditioning applications, particularly for mobile devices and telecom equipment. The capacitor also offers other useful qualities, such as low leakage current, low equivalent series resistance (ESR), and low cost.

Working Principle:

Aluminum electrolytic capacitors use an anode made of a thin aluminum foil that is coated with a porous oxide layer during the manufacturing process. The reverse side of the anode foil acts as the cathode. The anode and cathode are then separated by an electrolyte, typically a mixture of water and ethylene glycol. The electrolyte is soaked into a dielectric between the anode and cathode, which acts as an insulator. This sandwich-like arrangement is sealed in a metallic housing that is electrically connected to the anode, while the other side of the capacitor is connected to the cathode. When a voltage is applied to the capacitor, electrons flow from the anode to the cathode, creating a current. The dielectric material then stores and releases energy, creating a capacitance.

Conclusion:

The 25YK470MEFC10X12.5 aluminum electrolytic capacitor is a highly reliable and robust component that is ideal for use in a variety of applications, including high-power amplifier circuits, voltage regulation, ESD protection, and noise filtering. It is designed primarily for power-supply conditioning applications, performing well even at higher ripple currents and a wide temperature range. The capacitor is made up of a thin aluminum foil anode, an electrolyte-soaked dielectric material, and a metallic housing, all of which work together to store energy and create a capacitance.

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