Talk about the component basis of capacitors

There are a lot of capacitors in the creation of electronic technology, which play different functions in the electronic circuit. Similar to a resistor, it is generally called a capacitor and is indicated by the symbol C. We all know that a capacitor is a "container that stores charge." Even though there are many types of capacitors, their basic organization and principles are similar. The metal centers, which are closely spaced apart from each other, are separated by a substance to form a capacitor. The two metals are called collectors, and the material during the period is called the medium. Capacitors also distinguish between fixed capacitors and variable capacitors.

The ability of different capacitors to store charge is also different. The amount of charge stored when a capacitor is applied with a 1 volt DC voltage is referred to as the capacitance of the capacitor. The basic unit of capacitance is Farah. But in fact, Farah is a very uncommon unit, because the capacity of capacitors is often much smaller than 1 Farad, commonly used μF, nF, pF, etc., their relationship is: 1F = 1000000μF 1μF = 1000nF = 1000000pF = 105

In electronic circuits, capacitors are used to block DC through AC, as well as to store and discharge charge to act as a filter to smooth out the output ripple signal. Small-capacity capacitors are commonly used in high-frequency circuits such as radios, transmitters, and oscillators. Large-capacity capacitors are often used for filtering and storing charge. There is also a feature, generally more than 1μF capacitors are electrolytic capacitors, and capacitors below 1μF are mostly ceramic capacitors, of course, there are other, such as monolithic capacitors, polyester capacitors, small-capacity mica capacitors.