In electronic engineering, capacitors are crucial electronic components, and polyester film capacitors and CBB capacitors are two important types of capacitors. They play an indispensable role in various electronic devices, whether it is household appliances or industrial equipment.

Polyester film capacitors, also known as polyester power capacitors, are widely used for their good insulation performance, low dielectric loss, good frequency characteristics, wide operating temperature range, and large capacity range. It is mainly used to handle alternating current, especially in high voltage, high frequency, and large capacity occasions. In power systems, polyester film capacitors are often used to improve power factor, filtering, and energy conversion.

On the other hand, CBB capacitors, that is, polypropylene film capacitors, have extremely high insulation resistance and good temperature and frequency characteristics. It is mainly used for signal processing and power filtering in electronic equipment, especially in occasions that require high stability and low loss. CBB capacitors are widely used in consumer electronics, communication equipment, lighting systems and other fields.
In general, polyester film capacitors and CBB capacitors each have unique functions and application fields, but both provide important support for the normal operation of modern electronic equipment. With the development of science and technology, the application of these two capacitors will only be more extensive and in-depth in the future.