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Aluminum Electrolytic Capacitors

UMA1E100MDD Application Field and Working Principle

Aluminum electrolytic capacitors are widely used in electronics, especially in the high-frequency field. Due to the low leakage current of this capacitor, it is also commonly used in low-frequency circuits. The UMA1E100MDD built on aluminum electrolytic capacitor technology is specifically designed for low-frequency circuits.

The UMA1E100MDD is a standard size aluminum electrolytic capacitors with radial leads. It is constructed with electrolyte-soaked aluminum foil. It is non-solid, non-self-healing, and has a large capacitance in a low volume. It also has a higher working voltage, reliable mechanical strength and high insulation resistance.

When applying the aluminum electrolytic capacitor UMA1E100MDD, it should be noted that the leakage current of aluminum electrolytic capacitors increases with temperature and with the increase of frequency. Therefore, it is necessary to pay attention to the low combination temperature and the temperature when using. As for the service life of the UMA1E100MD. in most applications, its service life is above3000 hours at 85℃.

The working principle of aluminum electrolytic capacitor is mainly based on the Faraday effect to polarize the liquid film in an electrolyte between the two surfaces of the aluminum foil. A positive charge accumulates on the anode surface, a negative charge accumulates on the cathode surface, and dielectric oxide film forms a reverse electric breakdown.

The traditional aluminum electrolytic capacitors, including the UMA1E100MDD, are generally composed of five parts: an anode foil, a cathode foil, a separator, an insulating paper and electrolytic solution. With the application of external voltage, the positive electric field on the anode surface and the negative electric field on the cathode surface respectively attract the ions in the electrolyte to electrolysis and form electric double layers.

The capacitance of the aluminum electrolytic capacitor depends on the surface area of the anode foil, the distance between the two electrodes and the dielectric property of the electric double layer. Aluminum electrolytic capacitors have high capacitance in a very small volume, which is irreplaceable by other capacitors, and has a wide range of application fields.

In conclusion, the UMA1E100MDD is a type of aluminum electrolytic capacitors, which has a wide range of application fields. It has excellent performance, such as a low leakage current, thus allowing it to suit low-frequency circuits, and it is also thermally and mechanically reliable. The working principle of this type of capacitor is mainly based on the Faraday effect and the electric double layer formed after an external voltage is applied.

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