First, the more common chip inductors. It comes in many colors, but in daily use, it is mainly brown, gray and lavender. However, the material of this common capacitor is mainly porcelain, and its appearance is very simple, and its appearance is a relatively single surface without any screen and polarity.

Second, multi-layer capacitors made of carbon paper. This kind of chip inductor is still relatively common, but its material is mainly paper, and its shape is mainly round and square, while the oval is generally silver-white with metallic luster, and the square is brown. For this kind of chip inductor made of paper, we can see the layering of the paper medium from the side.

The three words are chip tantalum capacitors. By listening to this name, we can clearly know that its material is mainly tantalum, which is different from the above two. Its surface is screen-printed and has polarity, and its colors are mainly black and yellow instead of gray and brown. The surface of this capacitor will use a white screen to represent the positive electrode of the capacitor, and its capacitance value and working voltage will be marked on the occupation. Some manufacturers will also mark some other information on it.

These four characters are mainly electrode patch inductance. Its material is mainly electrolyte. Like the third one, its surface is also private and has a motor. Its appearance is mainly aluminum shell. Compared with the third type, it mainly uses the black silk screen on the surface of the capacitor to indicate the negative electrode of the capacitor, and to mark the capacitance value and its operating voltage during operation.