QXK2J334JTPTZH

Film Capacitors

Film capacitors are electronic components consisting of a plastic film dielectric material, such as polyester or polypropylene, with two metal plates (called electrodes) insulated from each other by the dielectric.

The QXK2J334JTPTZH is a film capacitor used in various electronic applications. It is designed with a polyester film dielectric and two tinned copper electrodes. It also features self-healing properties, which allow it to recover from short-term overvoltages without being damaged.

Application Field

Film capacitors are most commonly used in power switching applications as filters or snubbers. These include power line conditioning, power factor correction, power conversion and control, and noise suppression and filtering. The QXK2J334JTPTZH is ideal for use in these applications due to its self-healing properties, high thermal stability, low ESR (equivalent series resistance), and high ripple current ratings.

The QXK2J334JTPTZH is also used in motor and transformer applications, as well as radiated and conducted noise suppression. Its high ripple current ratings and low ESR makes it a great choice for these applications.

Working Principle

The working principle of a film capacitor is based on electrets, or “electrically acting material”. Electrets are created when a dielectric material, such as polyester, is charged with electricity. This charge is stored in the dielectric material, even after the source of voltage is removed. When a voltage is applied to the electrodes of the film capacitor, the charge is attracted to the electrode which has the opposite polarity of the charge in the material.

This creates a differential electric field between the two electrodes, producing a capacitance or charge storage. This charge will remain until the DC voltage is removed or reversed. In AC applications, the voltage will cause the charges to oscillate back and forth over the dielectric, depending on the frequency of the AC signal.

The QXK2J334JTPTZH film capacitor features a polyester film dielectric, insulating two tinned copper electrodes. Its self-healing properties help protect against short-term overvoltages, and its high ripple current ratings and low ESR make it suitable for use in a variety of applications.