ECE-A1EKA4R7I

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Aluminum electrolytic capacitors are widely used in many occasions and have wide applications. This article introduces the application field and working principle of ECE-A1EKA4R7I, which is a typical aluminum electrolytic capacitor.

Introduction of ECE-A1EKA4R7I
ECE-A1EKA4R7I is a kind of aluminum electrolytic capacitor with multipurpose. Its main characters are high capacitance, high voltage and long life. It is approved by UL, CUL, and TUV, with very low leakage current, low dissipation factor and high ripple current capacity.

Application Fields of ECE-A1EKA4R7I
ECE-A1EKA4R7I is widely used in many occasions due to its high capacitance, high voltage and long life. It is used in audio device, music instrument, digital device, medical device, consumer electronic appliance, led lighting and power frequency converter etc.
In general, it is suitable for applications that requires hold-up power, voltage peak absorption, power buffering, noise reduction and circuit desensitizing. It is not only capable of capacitive loads, but also suitable for DC blocks, filtering, bypass and energy storage.

Working Principle of ECE-A1EKA4R7I
The working principle of aluminum electrolytic capacitor is based on the Faraday law of electrolysis. It consists of two series-connected capacitors, one anodized aluminum foils and another separator soaked with electrolyte. When a DC voltage is applied between the plates, current will pass through the anode and the electrolyte, creating an electric field between the plates. This electric field stores the electrical charge, resulting in a built-up capacitance. The capacitance can be varied by changing the area of the plates.

Moreover, a barrier layer of aluminum oxide (Al2O3) is formed on the anode. This Al2O3 can support a high reverse breakdown voltage. If the voltage reaches or exceeds the breakdown voltage, the dielectric layer will fail, resulting in a sudden decrease of the capacitance. After that, the capacitor will be damaged and needs to be replaced.

Conclusion
In conclusion, ECE-A1EKA4R7I is a typical aluminum electrolytic capacitor with wide applications. It works by Faraday law of electrolysis and has high capacitance, high voltage and long life. Since it is UL, CUL, and TUV approved, it can be used for applications such as audio device, music instrument, digital device, medical device, consumer electronic appliance, LED lighting, power frequency converter and more. It is suitable for DC blocks, filtering, bypass and energy storage.

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