Capacitance is one of electronic cell that use in great quantities in electronic equipment, apply extensively at lying between straight, coupling, bypass, filter wave, harmonious loop, energy changeover, command the respect such as circuit. Represent electric capacity with C, capacitance unit has farad (F) , microfarad (farad of UF) , skin (PF) , 1F=10^6uF=10^12pF
One, the model of capacitor names a method
The model of homebred capacitor is comprised by 4 parts commonly (unwell with capacitor of Yu Yamin, alterable, vacuum) . Ordinal represent name, material, classification and serial number respectively.
The first part: Name, express with the letter, capacitor uses C.
The 2nd part: Material, express with the letter.
The 3rd part: Classification, express with the number commonly, express with the letter individually.
The 4th part: Serial number, express with the number.
Represent the material of the product with the letter: A- Tantalum electroanalysises, B- aluminium of the blame polarity film such as polystyrene, C- high frequency pottery and porcelain, D- electroanalysises, E- other material electroanalysises, G- alloy electroanalysises, glair of glass of H- compound medium, I- , J- the polarity such as dacron of metalized paper, L- niobium of organic film, N- electroanalysises, O- glass film

2, the classification of capacitor
1, divide kinds big according to the structure: Secure capacitor, alterable capacitor and fine tuning capacitor.
2, by electrolyte classification has: Organic medium capacitor, inorganic medium capacitor, electroanalysis capacitor and air interpose
Qualitative capacitor.
3, by utility cent has: Wave of high frequency bypass, low frequency bypass, filter, harmonious, high frequency coupling, low frequency coupling, small-sized
Capacitor.
4, frequency bypass: Capacitance of glair of capacitor of pottery and porcelain, micaceous capacitor, vitreous film capacitor, polyester fibber capacitor, glass
Implement.
5, low frequency bypass: Capacitor of paper interpose capacitor, pottery and porcelain, aluminium electroanalysises capacitor, polyester fibber capacitor.
6, filter wave: Aluminium electroanalysises capacitor of capacitor, paper interpose capacitor, compound paper interpose, liquid Tantalum capacitor.
7, harmonious: Capacitor of pottery and porcelain, micaceous capacitor, vitreous film capacitor, polystyrene capacitor.
8, high frequency coupling: Capacitor of pottery and porcelain, micaceous capacitor, polystyrene capacitor.
9, low coupling: Capacitor of paper interpose capacitor, pottery and porcelain, aluminium electroanalysises capacitance of Tantalum of capacitor, polyester fibber capacitor, solid
Implement.
10, small-sized capacitance: Capacitor of capacitor of metalized paper interpose, pottery and porcelain, aluminium electroanalysises capacitor, polystyrene capacitor, solid Tantalum capacitor, vitreous glair capacitor, metallization dacron capacitor, polypropylene capacitor, micaceous capacitor.
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