The role and characteristics of metallized film capacitors? Huizhou Xintaifeng Capacitor Co., Ltd.
Release time:
2019-04-01
Source:
Metallized film capacitors are capacitors made of organic plastic film as the medium, metallized film as the electrode, and made by winding (except for the laminated structure). The films used in metallized film capacitors include polyethylene, polyester Acrylic, polycarbonate, etc., in addition to the winding type, there are also laminated types. Among them, polyester film medium and polypropylene film medium are the most widely used.
effect
This type of metallized film capacitor has a so-called self-healing action, that is, if a small part of the electrode is short-circuited due to the fragility of the electrical interface, the electrode metal around the short-circuited part will be damaged. Due to the electrostatic energy or short-circuit current carried by the capacitor at that time, a larger area of melting and evaporation is caused to restore the insulation, so that the capacitor returns to the role of the capacitor again.
features
The metallized film capacitor is to deposit a layer of metal film on the surface of the polyester film instead of the metal foil as an electrode. Because the thickness of the metallized film layer is much smaller than the thickness of the metal foil, the volume after winding is also smaller than that of the metal foil capacitor. Much smaller in size. The biggest advantage of metallized film capacitors is the "self-healing" characteristic. The so-called self-healing characteristic is that if the film medium has a defect at a certain point and a breakdown short circuit occurs under the action of overvoltage, the metallization layer at the breakdown point can be melted and evaporated instantly under the action of an arc to form a small metal-free area. , so that the two pole pieces of the capacitor are re-insulated from each other and can still continue to work, thus greatly improving the reliability of the capacitor.

Huizhou Xintaifeng Capacitor Co., Ltd. was established in 2001, specializing in the research, development, production and sales of film capacitors.
The company always adheres to the business purpose and service commitment of "product excellence", "meeting and exceeding customer needs", and provides customers with professional, high-quality and low-cost products and satisfactory services. The company introduces advanced functions and performances from Taiwan, Japan and other regions. Complete professional production and testing equipment, in strict accordance with the electronic GB standards promulgated by the country, and the production process production operations implemented by the International Electrotechnical Commission (IEC) standards.
Main products: CBB61 AC motor capacitors, CBB61 speed regulating capacitors, RC absorption capacitors, power electronic capacitors, CBB60 motor capacitors, CBB60 water pump capacitors, metallized film capacitors
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Relevant information
2018-09-30
