335PHB400K2H

Film Capacitors

Film capacitors are high voltage capacitors which are largely used for different applications across the world. A primary application of film capacitors is the power factor correction in lighting circuit. Power factor correction is the process of increasing the voltage drawn from the power line. Film capacitors are typically used for this application, as they provide an ideal voltage drop across the capacitor elements. Film capacitors are also used to reduce harmonic distortion resulting from switching operations in power circuits.

335PHB400K2H Application Field and Working Principle

335PHB400K2H is a type of film capacitor mostly used for power factor correction in lighting circuits. It has a power rating of 1.5kV, and its maximum current rating is 3.5A. It features a ceramic dielectric material with a hard dielectric coating. This capacitor can handle high voltages and currents, making it suitable for many applications. The current ratings of the capacitor depend on its voltage ratings. The operating frequency of the capacitor is 0.9 KHz. It is important to note that the capacitor must be connected in series with a resistor, or else the capacitor will suffer from high current and suffer thermal damage. The total capacitance of the 324PHB400K2H capacitor is 400 μF.

Working Principle: The capacitor is constructed from several individual dielectric layers. As the voltage through the capacitor increases, the charges on the dielectric layers create an electric field. This field creates an opposing electric flux, which cancels out the voltage as it shifts across the layers. This electric flux then causes a charge imbalance to be built up within the capacitor, creating the capacitance that is needed for power factor correction.

When the voltage is applied to the capacitor, the electric charge is built up in the capacitor devices, reducing the voltage across them. When the voltage reaches its peak, the electric charge dissipates, resulting in current reduction. The capacitor is then able to handle additional current more efficiently than before.

Conclusion

The 335PHB400K2H capacitor is a type of film capacitor that is mostly used for power factor correction in lighting circuits. Its power rating is 1.5kV, its maximum current rating is 3.5A, and its total capacitance is 400 μF. The capacitor must be connected in series with a resistor in order to prevent high current and thermal damage. It works on the principle of the electric field created by the dielectric layers of the capacitor. This electric field reduces the voltage across the capacitor and reduces the current.