UVK1H010MDD

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Aluminum electrolytic capacitors are widely used in many electronic applications, such as power supplies, audio circuits, and pulsed signal circuits. The UVK1H010MDD capacitor is one of the most popular capacitors designed to meet a wide variety of applications and requirements. This capacitor is most commonly used in smoothing circuits, decoupling circuits, and RF applications. In this article, we will look at its application field and working principle.

Application Field

The UVK1H010MDD capacitor is designed for use in smoothing, decoupling, filtering, and RF applications. It can be used in circuits with operating voltages from 16V up to 35V and capacitance of 1uF. It is also designed to withstand reverse voltage of up to 10V, allowing it to be used in switchmode power supplies and other applications where high inrush current can cause damage to regular capacitors. This capacitor is also designed with low ESR, allowing for high ripple current operation and low EMI interference. Furthermore, its long life of 2000 hours at maximum working temperature of 105°C makes it an ideal choice for applications where reliability and performance are critical.

Working Principle

A single aluminum electrolytic capacitor consists of an anode and a cathode. The anode is made from a porous material, such as aluminum, which is then electroplated with a thin layer of anionic material, such as tantalum. The anode and cathode are separated by a dielectric (insulating) material. The anode is then covered with an ionic (electrolytic) material, such as a conductive polymer. The dielectric material can be either solid or liquid, and determines the overall capacitance of the capacitor.

When a voltage is applied across the capacitor, ions from the electrolyte move toward the anode, forming a positive charge at the anode and a negative charge at the cathode. This charge separation results in an electrical field between the two electrodes, which can store electrical energy. The capacitance of the capacitor is determined by the area of the plates, the distance between the plates, and the permittivity of the dielectric material.

In a UVK1H010MDD capacitor, the internal dielectric is a liquid tantalum pentoxide (LiTaO3). This dielectric has a high permittivity, meaning that the capacitor can store more charge in a smaller area than other types of capacitors. The capacitor also has a self-healing property, meaning that when the dielectric is damaged by a transient voltage surge, it will regenerate and the capacitor will continue to function.

Conclusion

In conclusion, the UVK1H010MDD capacitor is designed for use in many types of electronic applications, specifically those requiring high capacitance and low ESR. It is ideal for applications such as power supplies, audio circuits, and pulsed signal circuits. By using a dielectric with high permittivity, this capacitor is able to store more charge in a smaller area, and with its self-healing property it is also more reliable and longer lasting than other types of capacitors.

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