Capacitors are one of the most widely used electronic components in electronic equipment. They are widely used in blocking, coupling, bypassing, filtering, tuning loops, energy conversion, control circuits, etc. Use C to represent capacitance. Capacitance units are farad (F), micro-farad (uF), picofarad (pF), 1Fu003d10^6uFu003d10^12pF 1. The naming method of capacitor model The model of domestic capacitor is generally composed of four parts (Not applicable to pressure sensitive, variable, vacuum capacitors). They respectively represent name, material, classification and serial number. The first part: the name, expressed in letters, and C for capacitors. The second part: materials, expressed in letters. The third part: classification, generally represented by numbers, and individually represented by letters. The fourth part: the serial number, expressed by numbers. Use letters to indicate the material of the product: A-tantalum electrolysis, B-polystyrene and other non-polar films, C-high frequency ceramics, D-aluminum electrolysis, E-other material electrolysis, G-alloy electrolysis, H-composite medium, I-glass glaze, J-metallized paper, L-polyester and other polar organic films, N-niobium electrolysis, O-glass film, Q-paint film, T-low frequency ceramics, V-mica paper, Y-mica, Z -Paper introduction 1. According to the structure, it is divided into three categories: fixed capacitors, variable capacitors and trimmer capacitors. 2. According to the electrolytic quality, there are organic dielectric capacitors, inorganic dielectric capacitors, electrolytic capacitor
s and air dielectric capacitors. 3. According to the purpose, there are: high-frequency bypass, low-frequency bypass, filtering, tuning, high-frequency coupling, low-frequency coupling, and small capacitors. 4. Frequency bypass: ceramic capacitors, mica capacitors, glass film capacitors, polyester capacitors, glass glaze capacitors. 5. Low frequency bypass: paper capacitors, ceramic capacitors, aluminum electrolytic capacitors, polyester capacitors. 6. Filtering: aluminum electrolytic capacitors, paper capacitors, composite paper capacitors, liquid tantalum capacitors. 7. Tuning: ceramic capacitors, mica capacitors, glass film capacitors, polystyrene capacitors. 8. High frequency coupling: ceramic capacitors, mica capacitors, polystyrene capacitors. 9. Low coupling: paper capacitors, ceramic capacitors, aluminum electrolytic capacitors, polyester capacitors, solid tantalum capacitors. 10. Small capacitors: metallized paper capacitors, ceramic capacitors, aluminum electrolytic capacitors, polystyrene capacitors, solid tantalum capacitors, glass glaze capacitors, metallized polyester capacitors, polypropylene capacitors, mica capacitors.
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