BFC233825333

Film Capacitors

Film capacitors use thin dielectric films, such as polypropylene or polyester, that are vacuum deposited onto an alumina or glass tensile substrate for insulation. Due to their construction, film capacitors have uncharacteristically high energy densities coupled with very low ESL and ESR compared to most other capacitor types, making them an ideal choice for many high frequency, power filter, and snubber applications.

BFC233825333 Application Field and Working Principle

The BFC233825333 is an axial leaded film capacitor suitable for many demanding power management applications. It exhibits a high energy storage capacity in a small package due to its use of a special dielectric material. The capacitor’s design also allows for superior volume charge, making it well-suited for high frequency applications.

This film capacitor’s operating principle is simple. An electric field is created between two electrodes that have been separated by a dielectric film. When the field reaches its maximum strength, wax is injected into the capacitor’s body, which forms a thermal barrier that prevents any further energy from passing through. This waxing process also increases the breakdown voltage and dielectric constant, ensuring that this capacitor will operate reliably in high temperature and voltage environments.

The BFC233825333 is particularly suitable for applications that require low equivalent series inductance and high energy storage. It can be used in boost converters, PFC converters, offline switching, SMPS, power factor correction, transient power filtering, and high frequency resonant circuits. Due to its high energy storage capacity, this capacitor can store up to 1600uJ in a 10mm diameter package.

Conclusion

The BFC233825333 film capacitor exhibits excellent performance characteristics, making it a great choice for a range of power management applications. The capacitor has a high energy storage capacity, low inductance, and low ESR, all of which make it highly suitable for high frequency and power filter applications. Additionally, the wax injection process increases the breakdown voltage and dielectric constant, ensuring that this capacitor will be a reliable and durable choice.