F339MX253331MKM2T0

Film capacitors, or polyester capacitors, are a type of non-polarized capacitor that are noted for their reliability and low equivalent series resistance (ESR). The F339MX253331MKM2T0 is a film capacitor utilized extensively in a variety of applications, most notably AC filtering, DC links, snubber circuits, and coupling and decoupling. As compared to other types of capacitors, the film capacitor offers a number of distinct advantages.

F339MX253331MKM2T0 Application Field

The F339MX253331MKM2T0 is mainly specified for high frequency applications, such as switch-mode power supplies, inverters, resonant converters, motor drives, as well as those applications with high voltage spikes, such as invertebrates or DC links. As one of the most common film capacitors, the F339MX253331MKM2T0 is a reliable and cost-effective solution for energy storage requirements in microelectronic circuits at frequencies up to 2 kHz.

Furthermore, the low ESR and high ripple current ability make the F339MX253331MKM2T0 ideal for decoupling and snubber circuits. This type of capacitor is also known for its ability to attenuate noise in audio frequency and low frequency applications. As motors and industrial equipment are typically subject to high levels of vibrations, the F339MX253331MKM2T0 offers superior mechanical stability in these conditions.

F339MX253331MKM2T0 Working Principle

Film capacitors typically employ a PET (polyethylene terephthalate) dielectric film between an arrangement of two or more copper foil plates. The PET film is comprised of two layers, where one layer comprises of linear polyester and the other of cross-linked polyester. This design enables the film capacitor to have a high dielectric constant and low ESR. When a voltage is applied across the plates of the capacitor, an electrical field occurs, which stores energy.

Typically, film capacitors operate at a temperature of up to 125°C, using aluminum electrolytic capacitors in parallel to compensate for the capacitance reduction, ensuring excellent performance. Furthermore, film capacitors have a low self-inductance and low dissipation. As a result, they are less prone to voltage spikes and generate less heat when compared to other types of capacitors.

Conclusion

The F339MX253331MKM2T0 is a robust and reliable film capacitor that is suitable for applications where reliable performance is required. With a low ESR, excellent ripple current performance, and superior stability even under vibration, it is an ideal choice for applications such as AC filtering, DC link, snubber circuits, and coupling and decoupling devices. Due to its low self-inductance and low dissipation, the F339MX253331MKM2T0 is less prone to voltage spikes, making it an excellent solution for high frequency applications.