Aluminum Electrolytic Capacitors

B43821F2335M8 are Aluminum Electrolytic Capacitors generally used in many areas of electrical engineering. These capacitors offer an efficient, low-cost way of obtaining high capacitance values in small packages.

Application Field

Due to their small size, these capacitors can be used in many applications, for example, as decoupling capacitors in power supplies, as buffering capacitors in converters or as energy storage capacitors in oscillators.Moreover, Aluminum Electrolytic Capacitors are widely used in RF electronics for antennas, amplifiers, filters and transmission lines. Meanwhile, Motors, Control and Automation also take advantage of these components for their housing fans, starters, drives and switchers.

Working Principle

The main body of the Aluminum Electrolytic Capacitor consists of two aluminum foil electrodes coated with a semiconductor oxide layer. It also contains an electrolyte which is chemically adsorbed on the oxide layer. The entire structure is then sealed in an epoxy resin case.

When a voltage is applied between the anode (+) and the cathode (-), a layer of positive or negative ions from the electrolyte is attracted to the oxide layer. This layer of ions forms an electronic polarization field across the oxide layer, producing an electric double layer. This electric double layer causes an increase in capacitance.

However, the physical structure of the Aluminum Electrolytic Capacitor is not perfect; it contains imperfections in the oxide layer, which can result in a leakage current over the entire structure. Thus, the capacitance of the capacitor decreases over time as the oxide layer gets damaged.

The most important feature of the Aluminum Electrolytic Capacitor that separates it from other types of capacitors is its ability to store large amounts of energy. This high percentage of energy storage makes it ideal for applications such as RF electronics, control, and automation.

Conclusion

In conclusion, B43821F2335M8 Aluminum Electrolytic Capacitors offer many advantages such as its small size, high capacitance value, low cost, and long life. Moreover, these components are versatile and can be used in many different applications such as RF electronics, motors, power supplies, converters, and oscillators. The working principle of the Aluminum Electrolytic Capacitor involves an electric double layer formed by anodic and cathodic ions, which is responsible for the high capacitance of the device.