EKY-160ELL471MH15D

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Aluminum electrolytic capacitors, also known as electrolytic capacitors, are polarized capacitors that offer the highest level of capacitance per unit volume for any capacitor type. These capacitors are constituted of two aluminum foil plates, separated by a paper or plastic sheet saturated with an electrolyte, usually an aqueous solution of ammonium bicarbonate. EKY-160ELL471MH15D is a popular type of aluminum electrolytic capacitor, and they are used in a variety of applications. This article will discuss the major applications of EKY-160ELL471MH15D and their working principles.

Applications

EKY-160ELL471MH15D is mainly used as a filter capacitor in power supplies, with a working voltage range of 200-250 volts and a capacitance range of 470-1000 micF. These capacitors are also widely used for power applications, including smoothing of the input voltage and conducting of AC filtering, due to their high ripple current capacity and long operating life. Other general application uses of EKY-160ELL471MH15D include stages of radio broadcast receivers, power supplies of TV receivers, DC power supplies and high frequency circuits.

EKY-160ELL471MH15D is also used in non-general applications such as communication systems. In such systems, these capacitors help reduce the noise that exists between the power supply of the system and any attached equipment. Additionally, the capacitors help to amplify the signal bias voltage of radio devices to improve performance in transistor radios.

Besides power applications, these aluminum electrolytic capacitors are also used in filter circuits and noise suppression devices.

Working Principle

Aluminum electrolytic capacitors work on the principle of electrolytic action, which is when an electric current causes metals in a solution to plate each other. Electrolytic capacitors are made of two aluminum foils, one of which is etched with a pattern of electrolyte-filled pores. Between the two aluminum foils is a dielectric layer of aluminum oxide. When a voltage is applied, the electrolyte decomposes and forms a thin layer of aluminum oxide on the aluminum foil pores. This thin oxide layer acts as the dielectric layer, and the area of the oxide layer determines the capacitance of the capacitor. The plates form a capacitor, and the current will flow between them, causing one plate to be positively charged and the other plate to be negatively charged.

The chemical reaction that takes place when a current passes through an electrolytic capacitor also causes the capacitor’s capacitance to increase, making them suitable for use in high ripple current applications. Additionally, the electrolyte also allows the capacitor to achieve a higher working temperature range than most other types of non-polarized capacitors. However, these capacitors are prone to leakage, especially at high temperatures, due to the decomposition of the electrolyte.

Conclusion

EKY-160ELL471MH15D aluminum electrolytic capacitors can be used in a variety of power related applications, such as smoothing and conducting AC filtering.These capacitors can also be used in radio broadcast receivers and power supplies of TV receivers. Furthermore, they can be used for noise suppression and to amplify the signal bias voltage of transistor radios. In terms of their working principle, aluminum electrolytic capacitors must be polarized and use the electrolyte to form a dielectric layer of aluminum oxide when a voltage is applied, resulting in an increased capacitance.

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