Polyester capacitor are basic components of electronic products with polyester as the medium, and are used in various DC or low-frequency pulsating circuits. Polyester capacitor have high dielectric constant, small size, large capacity, and good stability. They are suitable for bypass capacitors; the price-capacity ratio and the volume-to-volume ratio are larger than electrolytic capacitors and ceramic capacitors.
Characteristics of polyester capacitors:
- Small size and light weight;
- Good stability and high reliability;
- The lead wire is directly welded to the electrode with low loss;
- Sensitive structure, encapsulated by polyester film and epoxy resin.
Advantages: The accuracy, loss angle, insulation resistance, temperature characteristics, reliability and environmental adaptability of film capacitors are better than electrolytic capacitors and ceramic capacitors.
It is suitable for use in various DC or low-frequency pulsating circuits.