Along with the ever-changing electronic information technology development, the upgrading speed of digital electronic products is growing faster and faster. The sales of consumer electronic products mainly in flat panel TV (LCD and PDP), laptops, and digital cameras have continued to grow, driving the capacitor industry growth. More and more capacitor manufacturers have risen. And the development of related materials and the equipment industry have also been promoted.
1. In accordance with the structure, capacitor is divided into three major categories: fixed capacitor, variable capacitor and trimmer capacitor.
2. Classified by electrolytes, capacitor is divided into organic dielectric capacitor, mineral capacitor, electrolytic capacitor and air dielectric capacitor.
3. According to usage, it is divided into high-frequency bypass, low frequency bypass, filtering, tuning, high-frequency coupling, low-frequency coupling, and small capacitor.
4. By manufacturing materials, it can be divided into ceramic capacitor, polyester capacitor, electrolytic capacitor, tantalum capacitor, as well as advanced polypropylene capacitor.
5. High frequency bypass can be divided into ceramic capacitor, mica capacitor, glass film capacitor, polyester capacitor, vitreous glaze capacitor.
6. Low frequency bypass is divided into paper dielectric capacitor, ceramic capacitor, aluminum electrolytic capacitor, and polyester capacitor.
7. Filtering capacitor is classified to aluminum electrolytic capacitor, paper dielectric capacitor, composite paper dielectric capacitor, and liquid tantalum electrolytic capacitor.
8. Tuning capacitor is divided into ceramic capacitor, mica capacitor, glass-film capacitor, polystyrene capacitor.
9. Low coupling capacitor is divided into paper dielectric capacitors, ceramic capacitor, aluminium electrolytic capacitor, polyester capacitor, and solid tantalum capacitor.
10. Small capacitor is divided into metallized paper capacitor, ceramic capacitor, aluminium electrolytic capacitor, polystyrene capacitor, solid tantalum capacitor, glass glaze condenser, metallized polyester capacitor, polypropylene capacitor, mica capacitor, etc.
Troubleshooting
When one of the following conditions of capacitor is found, power supply should be firstly cut off. (1) Capacitor shell expansion or oil spilling.
(2) The sleeving rupture, causing flashover discharge.
(3) Abnormal sound inside the capacitor.
(4) The outer shell temperature rises above 55 ℃, with heat-sensitive piece falling off.
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The article is come from:http://www.chinaphoneparts.com/index.php/brief-introduction-about-capacitors.htm
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