UHW1A682MHD

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Aluminum electrolytic capacitors are important components in electronic circuits. They are usually used to store electrical energy,filter ripple currents, and control electrical or logical signals. UHF1A682MHD is a popular aluminum electrolytic capacitor. The application field and working principle of this type of capacitor are analyzed below.

Application Field of UHF1A682MHD

UHF1A682MHD electrolytic capacitors are mainly used in computer peripheral systems, such as the power supply, D1 module, etc. They can also be applied in consumer electronics like mobile phones, digital camcorders, and multimedia speakers. Furthermore, it can be used as a power filter for audio amplifiers, high-frequency circuits, and AM and FM radio receivers.

Working Principle of UHF1A682MHD

The UHF1A682MHD aluminum electrolytic capacitor is a two-terminal, polarized component with a cylindrical or rectangular aluminum package. It consists of an anode containing a perforated aluminum plate, an electrolyte contained in the perforations, and a solid aluminum oxide film on top of the anode for insulation. A cathode is formed by winding an aluminum layer around the anode and impregnating it with electrolyte. The cathode is connected to the capacitor\'s outer body, which acts as the second terminal.

When an external voltage is applied, the electric field between the anode and the aluminum oxide layer causes ions to pass through the electrolyte to form a charged layer which, when combined with the anode and oxide layer, creates a capacitor. As the charge buildup between the two electrodes continues, the equivalent capacitance increases. The current that flows through the capacitor is determined by the size of the electrolyte and the charge stored. As the capacitance increases, the electrical energy stored in the capacitor\'s electrical field also increases.

The aluminum electrolytic capacitor is a non-linear component, which means that its capacitance varies with voltage. This variation is due to the effects of electric double-layer generated by surface tension, as well as the presence of non-uniform areas of specific capacitance in the dielectric layers. UHF1A682MHD capacitor has a rated voltage of 6.3 VDC, a capacitance of 680 µF, and a temperature coefficient of -30 mV per °C.

Conclusion

The UHF1A682MHD aluminum electrolytic capacitor is an important component in electronic circuits. It is mainly used in computers, consumer electronics, audio amplifiers, high-frequency circuits, and AM and FM radio receivers. The capacitor works by forming a charged layer between the anode and the aluminum oxide layer. The capacitance and charge stored in the capacitor depend on the size of the electrolyte and the voltage applied. The UHF1A682MHD has a rated voltage of 6.3 VDC, a capacitance of 680 µF, and a temperature coefficient of -30 mV per °C.

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