MKP385618025JPI2T0

Film Capacitors

Film capacitors, also known as Metallized Plastic Film Capacitors, offer higher performance in a compact size than traditional electrolytic or ceramic capacitors and they are found in almost any electronic system today. This article examines the application field and working principle of the MKP385618025JPI2T0 Film Capacitor.

Application Field

The MKP385618025JPI2T0 Film Capacitor is an ideal choice for a range of applications including:

• Switching Power Supplies
• LED applications
• Computer power supplies
• Audio power supply and general DC/DC converters
• Testing and measurement equipment
• Power factor correction (PFC) circuits

It is a reliable, high-performance film capacitor that is perfect for these kinds of applications because it has a low dissipation factor, high insulation resistance, and long life. It also has a low ESR (equivalent series resistance) value which is critical for high-frequency switching applications, and it is able to withstand operating temperatures of up to 125°C. It is available in both radial and axial configurations, with radial being the most popular.

Working Principle

The MKP385618025JPI2T0 Film Capacitor is constructed from polypropylene film and metallized electrodes for the best dielectric and series resistance properties. This film is wound into a cylindrical package and sealed in an epoxy resin. The structure gives the capacitor excellent resistance to electrical short-circuits, moisture, and other environmental factors.

The MKP385618025JPI2T0 uses a polypropylene film with a dielectric constant of 2.2, making it excellent for high-frequency applications. The capacitance value is determined by the geometry of the metallized electrodes and the dielectric constant of the film. The capacitor can operate over a wide range of temperatures and frequencies, making it ideal for various applications. Additionally, the device has a high insulation resistance which prevents leakage current from being generated even in the presence of stray capacitance.

The MKP385618025JPI2T0 also features excellent self-healing properties; if the capacitor is subjected to an overvoltage or electrical short-circuit, the epoxy resin will dissipate the heat generated and protect the device from damage. This improved voltage withstand prevents the capacitor from being destroyed or having its properties deteriorated.

Conclusion

The MKP385618025JPI2T0 is an ideal choice for a range of applications, including switching power supplies, LED applications, computer power supplies, and audio and DC/DC converters. Its high insulation resistance, low dissipation factor, and long life make it an attractive choice for applications needing a broad range of performance characteristics. Its excellent self-healing properties also help protect the device from damage in case of an electric short-circuit or overvoltage.