Performance characteristics of polyester capacitors and monolithic capacitors

Polyester capacitors are used in a wide range of applications. Polyester capacitors are often used in a variety of DC or mid-low frequency pulsating circuits, especially when manufacturers prefer to use them as bypass capacitors. Because polyester capacitor is a capacitor with high molecular weight polymer as insulating medium, it has the advantages of high dielectric constant, small volume, large capacity, good stability, high withstand voltage and low leakage. It is deeply loved by capacitor manufacturers. .

The polyester capacitor is made of two pieces of metal foil as electrodes, sandwiched in a very thin insulating medium, rolled into a cylindrical or flat cylindrical core, and the medium is polyester. So is the polyester capacitor a metal film capacitor? No, there are still differences between the two. Polyester capacitors are metal foil capacitors and are also film capacitors. So what are the performance characteristics of polyester capacitors and monolithic capacitors?

Monolithic capacitors are another name for multilayer ceramic capacitors. The basic structure consists of an insulating intermediate dielectric layer plus two conductive metal electrodes. Suitable for a variety of small electronic devices for resonance, coupling, filtering, and bypass. Polyester capacitors are used in a variety of DC or medium and low frequency ripple circuits. Suitable for use as a bypass capacitor. The monolithic capacitor is relatively stable, the temperature drift coefficient is small, the capacitance value can be 1uF, the service life is long, and the equivalent DC resistance is small, while the polyester capacitor has the precision, loss angle, insulation resistance, temperature characteristics and reliability of the film capacitor. In general, polyester capacitors are film capacitors with the characteristics of thin film capacitors. Monolithic capacitors are ceramic capacitors with the characteristics of ceramic capacitors.

Well, the difference between polyester capacitors and monolithic capacitors is here. Whether it is monolithic capacitors or polyester capacitors, the scope of application has become wider and wider, but please be sure to choose regular brand production when purchasing. Oh, regular manufacturers can guarantee the quality and quality of capacitors, and also ensure personal safety.