ECQ-E2564KB

Film Capacitors

A film capacitor, also known as a dielectric capacitor, is a type of capacitor that uses a thin plastic film as the insulating layer between the electrodes, which in turn gives them a higher stability in capacitance than traditional capacitors. They are used in a variety of applications, such as in high-voltage power supplies and circuits like AC adapters, as well as in consumer electronic products like TVs, VCRs, cell phones and computers.

The ECQ-E2564KB is a radial-lead, axial-lead and through-hole film capacitor made with polyester film. It uses a Metallized film as the electrodes, and has a capacitance value of 6.8nf. It has a voltage rating of 630V and an operating temperature range of -55°C to 125°C. It has a low ESR of 0.006 ohms and a low dissipation factor of 0.003.

Application Field

The ECQ-E2564KB is most commonly used for filtering, bypassing, blocking and coupling applications in electrical and electronic circuits. The metallized film gives it a high dielectric strength and excellent stability in capacitance, making it ideal for use in high-stability circuits. It is also suitable for high-frequency switching power supplies, as well as for audio applications such as crossover networks and tone control circuits.

Working Principle

The working principle of a film capacitor is based on the attraction and repulsion of the opposing electrodes. The electrodes are arranged on opposite sides of a thin, insulating film, and when a voltage is applied, electrons move from the negative to the positive electrode, creating an electrical field that stores energy. The capacitance of the capacitor is determined by the size of the electrodes, the thickness of the dielectric film, and the distance between the electrodes. This stored energy can then be released when the voltage across the capacitor is changed, allowing it to act as a filter or amplifier in circuits.

Film capacitors provide a reliable and cost-effective solution for a wide range of applications. They are small in size and easy to install, and offer excellent performance and stability compared to traditional capacitors. As such, the ECQ-E2564KB is an ideal choice for use in high-stability circuits and audio applications.