Capacitor technical knowledge, principles and fundamentals
1.1 Overview 😋Electrolytic capacitors should be called electrolytic capacitors because one of the electrical stages of such capacitors is not a metal but an electrolyte or metal oxide. In short, the conductive carriers of this electrode are no longer electrons but ions. This is the basic characteristic of electrolytic capacitors. Now. According to the characteristics of [...]
1 Overview 🐾Mica is an extremely important and excellent inorganic insulating material. As a dielectric material, it has not yet been found that the comprehensive properties of other materials can exceed mica. The advantages of mica are high dielectric strength, high dielectric constant, low loss, high chemical stability, good heat resistance, and easy shaving into thin [...]
🌻An electrolytic capacitor differs significantly from other types in that its dielectric is an extremely thin anodic oxide film electrolytically generated on the valve metal, the thickness of which is closely related to the applied voltage. The oxide film is the heart part of the electrolytic capacitor, and its quality is related to the product performance, [...]
Different from other chip components, use of multilayer ceramic capacitors may be damaged due to large stress due to the thin internal electrodes and dielectrics, and the dielectric is very brittle: the combination of internal electrodes and terminal electrodes use of multilayer ceramic capacitors is also relatively Fragile. Therefore, relevant precautions should be observed when soldering [...]
1 Frequency Characteristics of Ceramic Capacitors 🍏1.1 Q value and frequency characteristics of ceramic capacitors The capacitance of the first type of ceramic capacitors (such as COG) is substantially invariant with frequency over the entire usable frequency range. Q value and resonant frequency are important indicators when high-frequency/ultra-high-frequency capacitors are used in bad resonant circuits. High-frequency/ultra-high-frequency [...]