Capacitor technical knowledge, principles and fundamentals
Film Capacitor principle The film is processed to allow metal atoms to attach to the film. The metal is evaporated under vacuum (1200 ° C for aluminum) to the surface of the treated film (the film is cooled to -25 ° C to -35 ° C) to form a metal layer. If the dielectric is short-circuited, [...]
In the past 20 years, the film capacitor has been greatly developed, the volume and weight of the capacitor is reduced by 3 to 4 times, and the technology has been greatly improved. The film capacitor has many advantages, so that the film capacitor is used in DC filter instead of electrolysis. Capacitance is a trend. [...]
The domestic MLCC giant Technology broke out of the Dongguan factory in August-September this year, which caused the MLCC orders for mobile phones to return to Guoju and Huaxin. As the main force of Yuyang is in the small size 0201, which coincides with the peak season of mobile phone shipments, Guoju has started the distribution [...]
MLCC has undergone inventory adjustment for nearly one year, and the terminal inventory is in good condition. Despite the impact of the Sino-US trade war, the peak season of the electronics industry is not as good as in previous years. However, new 5G communications and smart mobile phones are on the market, and demand for some [...]
Construction of electrolytic capacitor Etching The anode and cathode metal foils are made of high-purity, very thin aluminum foil of only 0.02-0.1 mm. In order to increase the disk area and capacitance, the increase in surface area in contact with the electrolyte is achieved by etching the metal foil to dissolve the aluminum. The surface of [...]