155PPB400K

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

Film capacitors are regarded as one of the most reliable component technologies in high precision electronic applications. They can be found in medical equipment, industrial equipment and audio-visual devices.As for 155PPB400K, its application field and working principle, this paper shall give a deep dive into all the aspects.

155PPB400K is a non polar polyester film capacitor of 400V test voltage, which is widely applied in audio, radio, communication and power supply systems. Compared to other capacitors, including ceramic and electrolytic ones, film capacitors feature a number of great advantages. Such as they hold a low ESR, high insulation resistance and excellent pulse handling, ensuring excellent performance with very low dissipation. Most importantly, by using film capacitors, you can avoid effects of accelerated aging under challenging operating conditions.

The working principle of 155PPB400K can be explained in two aspects. First, the electric filed. Taking a polyester film capacitor for example, the core of the construction is a polyester film. When conducting electricity, the electric field establishes between the electrodes. Since the body of the capacitor is a dielectric, the electric field induces polarity of the molecules, hence forming an electric double layer. This is the basis of the electric current flow inside the capacitor.

Second, let;s look at the temperature aspect. Since the film capacitor is a passive component, it also has an effect of temperature. The working capacitance of a film capacitor depends on the temperature. When the temperature rises, the effective capacitance of the capacitor will reduce. In other words, the capacitance of the capacitor can be tuned by controlling the temperature.

All in all, 155PPB400K is a type of film capacitor featured in low ESR, high insulation resistance, excellent pulse handling and acceleration aging resistance. It has wide applications in audio, radio, communication and power supply systems. It works based on electric filed, and the capacitance varies by temperature.

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