EET-HC2W181CF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Aluminum electrolytic capacitors are components that use aluminum foil, electrolyte and other materials as the dielectric medium, and have the characteristics of high electrical capacity and high voltage. The EET-HC2W181CF aluminum electrolytic capacitor is an ideal device used in high temperature and high frequency decoupling, damping and filter circuits in power supply systems. This article will introduce its application fields and working principles.

Application fields and features of EET-HC2W181CF

The EET-HC2W181CF aluminum electrolytic capacitor has a wide application field. In the power supply system, it can be used in the power filter damping network, signal damping network and decoupling network. In medical and health fields, it is used in the power supply of electronic equipment such as electronic stethoscope and electrocardiograph. In instrumentation, it is used in ventilators, test instruments, laser instruments and various temperature and humidity controllers to filter and provide power supply. In addition, it can also be used in high-frequency drive circuits, temperature compensation circuits and other fields.

The EET-HC2W181CF aluminum electrolytic capacitor is of high reliability, low cost, small size, simple and convenient use, wide range of capacity, and can work in harsh environments. Besides, it is not affected by the frequency, its insulation resistance is high, and its self-healing property is good.

Working principle of the EET-HC2W181CF

The working principle of EET-HC2W181CF aluminum electrolytic capacitor can be explained using its structure as shown in Figure 1. Figure 2 is an equivalent circuit of the device. The capacitor comprises an anode foil W, a cathode foil S and an electrolyte Y, which are all separated by aluminum oxide O.

Figure 1. EET-HC2W181CF Structure

Figure 2. EET-HC2W181CF Equivalent Circuit

When a voltage is applied between W and S, electrons will flow along the metal surface of W and the oxyhydrate surface surrounding the electrolyte Y to generate an electric field, which will induce a displacement current between W and S. This current , together with the current generated by Faraday\'s law, makes up the total circuit current. Since the electrolyte Y will electrolyze when voltage is applied, the W and S surfaces will be insulated by the newly generated Aluminum Oxide O which further increases the insulation resistance and polarizes quickly.

The equivalent circuit of Figure 2 shows that there are two layers of capacitance between W and S, which is the electric field capacitance; and the other is the electrolytic capacitance, which is generated by the electrolysis of the electrolyte Y. It should be noted that the electric field capacitance is lower and less sensitive to temperature than the electrolytic capacitance, so the voltage between W and S must not exceed the rated voltage specified by the manufacturer. otherwise, the oxide O will be destoried and the insulation resistance will decrease.

Conclusion

EET-HC2W181CF aluminum electrolytic capacitor is a widely used device with a variety of applications that has the advantages of high reliability, low cost, small size, wide range of capacity and a variety of applications. Its working principle can be explained by the equivalent circuit and can be used to understand the advantages and disadvantages of this device.

The specific data is subject to PDF, and the above content is for reference