ECW-H8303HL

Film Capacitors

Film capacitors belong to the class of capacitors, which are used to store energy in an electrical field. One key characteristic of these capacitors is their rectify dielectric - a thin film of metal or ceramic that suppresses current flow between the two metal electrodes in the film. These capacitors are available in many shapes, sizes, and capacitance values, as well as a variety of dielectrics, making them well suited for a wide range of applications.

One such application is the ECW-H8303HL film capacitor, which is designed for high-voltage use. The ECW-H8303HL has a maximum capacitance of 40µF and maximum voltage rating of 8kV. Its high maximum voltage rating makes it suitable for applications in high power electronics such as power tools, audio systems, transformers, and traction motors.

The ECW-H8303HL utilizes a hafnium dioxide (HfO2) dielectric film between two metal electrodes. This results in a self-healing phenomenon where any catastrophic failures are self-healed, since the dielectric film has the ability to absorb and dissipate the charges without rupturing. This allows the capacitor to withstand high over-voltage conditions and has proven to be reliable in various industrial applications.

Unlike some other film capacitors, the ECW-H8303HL features a high dielectric strength of 5.5kV, which is double the maximum voltage. This makes the capacitor well-suited for pulse applications as the dielectric can absorb stresses resulting from transients. The ECW-H8303HL also offers excellent temperature characteristics and a long mechanical life expectancy.

The working principle of the ECW-H8303HL is based on the law of electrostatics, which states that when two conductors, separated by a dielectric, are connected to a voltage source, an electrical field is generated between the conductors. This electric field causes charges to be stored on each conductor, creating a separation of charge or capacitance. When a voltage is applied to the capacitor, the electric field builds up, resulting in an increase in capacitance. This is how the ECW-H8303HL is able to store energy.

In conclusion, the ECW-H8303HL is a high-voltage film capacitor which is ideal for use in a variety of industrial applications. The capacitor utilizes a hafnium dioxide dielectric film between two metal electrodes, resulting in a self-healing phenomenon and high dielectric strength. The ECW-H8303HL is capable of withstanding high over-voltage conditions and has excellent temperature characteristics and a long mechanical life expectancy. The working principle of the ECW-H8303HL is based on the electrostatic law and the capacitor is able to store energy in an electrical field.