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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, also referred to as electrolytic caps, are electronic components with an aluminum foil sheet and an electrolyte solution between two electrodes. They are widely used in automotive, communications, computer, and industrial technologies. The model number 80ZLH270MEFCG412.5X20 is a miniature aluminum electrolytic capacitor commonly used in power supply applications such as power factor correction and filtering.

Application Field

Aluminum electrolytic capacitors are used in various applications, such as:

• DC filtering (E.g. consumer and commercial electronic devices);
• DC power supply regulation (E.g. applications involving switching power supplies);
• Signal filtering and decoupling (e.g. computer motherboards or any other communication and network equipment);
• Inverters and converters (E.g. AC-DC and DC-DC applications and providing isolation or coupling);
• High frequency signal filtering (E.g. intermediate frequency, radio frequency, and microwave communication equipment).

In addition, 80ZLH270MEFCG412.5X20 is a miniature aluminum electrolytic capacitor, which is desirable in various areas including but not limited to: high-density circuit boards, high-powered circuit designs, and energy-efficiency applications.

Working Principle

Aluminum electrolytic capacitors, like other types of capacitors, store energy in an electric field created between two plates with an insu-lating material in between. The aluminum electrolytic capacitors, however, feature this solid-state electric field between two aluminum foils separated by a thin paper sheet. This paper sheet is then impregnated with an electrolyte solution that serves as the dielectric material that further increases the capacitance value.

The 80ZLH270MEFCG412.5X20 aluminum electrolytic capacitor has two electrode plates, which are the positive and negative terminals. Like other capacitors, the 80ZLH270MEFCG412.5X20 also has an insulating layer called the dielectric. This dielectric is formed by the electrolyte solution, and this layer is responsible for increasing the capacitance of the aluminum electrolytic capacitor.

The voltage capacity for an aluminum electrolytic capacitor is higher than that of other types of capacitors. This is because the oxide layer on the aluminum foil acts as a catacomb of electrons, allowing for an increased surface area, thus increasing the capacitance of the capacitor.

In order to increase the stability of the capacitor, the 80ZLH270MEFCG412.5X20 features a polypropylene sleeve and plastic end caps. The polypropylene sleeve further protects the aluminum foil from the corrosive effects of the electrolyte solution, while the plastic end caps securely keep the assembly together, avoiding electrical leakage or unwanted shorts.

Furthermore, this type of aluminum electrolytic capacitor is also self-healing, meaning that if the capacitor’s dielectric potential is exceeded, the capacitor will simply re-form itself when the applied voltage is reduced. This feature is advantageous in applications that require fast and accurate response times, or in applications in an environment prone to electrical or surge interference.

Conclusion

The 80ZLH270MEFCG412.5X20 is a miniature aluminum electrolytic capacitor commonly used in power supply applications such as power factor correction and filtering. These capacitors are highly valued for their stability, high voltage rating, and self-healing properties, making them an ideal component in high-density, high-powered, and energy-efficiency applications.

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