Aug. 31, 2022
Film capacitors are usually cylindrical structure capacitors that use a metal foil (or a foil obtained by metallizing plastic) as the electrode plate, and the plastic film as the dielectric.
Film capacitors are divided into different types according to different dielectric: polyester film capacitors and polypropylene film capacitors.
1. Polyester film capacitors
Polyester film capacitor (CL capacitor): A capacitor that uses metallized polyester film as the dielectric and electrode, and the exterior is encapsulated or sealed with epoxy resin.
Features: Wide operating temperature range, good heat resistance, high dielectric constant, high capacitance stability, excellent electrical properties, high insulation resistance, good self-healing, and large volume ratio. It is used in AC and DC circuits for instruments, meters and household appliances, and in frequency division circuits of audio systems.
2. Polypropylene film capacitors
Polypropylene film capacitor (CBB capacitor): A capacitor uses polypropylene film as the dielectric, aluminum foil as the electrodes, and is encapsulated or encapsulated with epoxy resin.
It is characterized by excellent electrical performance, good reliability, wide range of high temperature resistance capacity, small size, good self-healing, and long working time. It is suitable for TVs, computer monitors, communication equipment, and other DC and VHF signals. Bypass, high frequency, AC, pulse, coupling circuit filtering, frequency modulation, DC blocking and time control products.
Different types of capacitors have different characteristics and application scenarios, so we must be careful when choosing capacitors to avoid problems. Select a reliable manufacturer when purchasing ceramic capacitors can avoid a lot of unnecessary trouble. JYH HSU (or Dongguan Zhixu Electronics) not only has full models of ceramic capacitors with guaranteed quality, but also offers worry-free after-sales. If you're looking for electronic components, welcome to contact us.
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