The principle of Electrolytic Capacitor leakage current is because the capacitor dielectric is not a complete insulator. When a DC voltage is applied to the capacitor, a leakage current will be generated in the capacitor. The capacitor leakage current is too large, and the capacitor will be heated and burned. Generally, electrolytic capacitors have higher leakage [...]
Characteristics of electrolytic capacitors According to electrode materials, common electrolytic capacitors are mainly aluminum electrolytic capacitors and tantalum electrolytic capacitors. 1. Aluminum electrolytic capacitor Aluminum electrolytic capacitor is a liquid electrolytic capacitor. According to the state of the dielectric material, it is divided into liquid aluminum electrolytic capacitors and solid aluminum electrolytic capacitors. Aluminum electrolytic capacitors [...]
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. [...]
MLCC has the largest amount of average device usage, and it has attracted the most attention. The MLCC plant has different views on profitability this year, but it is generally showing a trend of returning to growth for the valuation of next year. This year, most of the MLCC plants expanded according to the original plan. [...]