PCB News - How to recognize the components on the integrated circuit board?

How to recognize the components on the integrated circuit board?

For electronic technology novices, many do not know how to recognize the components on the integrated circuit board, and the components and schematic diagrams on the circuit board are very different, which will make the beginners who are just getting started feel complicated.

Component identification method of integrated circuit board:

1. For an experienced person, when analyzing a circuit board, it is possible to identify which component is based on its component shape, but the accuracy of this recognition is not high, and it needs to accumulate more experience and broaden your horizons.

2. According to the printing of the component itself, it can be distinguished which type of component it belongs to. Generally speaking, the printing on the component represents a certain type of parameter or a certain model. Of course, it may also be the factory batch number, version number and other attributes. Some internationally certified symbols will also be available. This method will test our knowledge of component models and parameters. Let's take a triode-like device as an example:

The label C1815 is a low-power low-frequency NPN transistor;

Marked TL431 is an integrated voltage regulator IC;

Marked 13001, it is a low-power switch tube, which can be used in small and low-power chargers.

We can disassemble the components to look at their internal structure. We will be more familiar with the characteristics, internal structure and working principle of various components. If we disassemble more components, it is also very helpful to improve our basic knowledge of components!

3. Identify according to the symbols and silk screens of the components on the circuit board. For example, the mark R12 is the resistance, which is numbered 12 in the circuit. In the circuit, the crystal oscillator can be represented by X, Y, and Z. At the same time, the function of the component can be judged according to the circuit where it is located, so as to analyze which type of component it belongs to, but this requires you to be familiar with the basic knowledge of the circuit. The same kind of components will be different in shape, structure, and materials due to technology, production and PCB manufacturers. We can learn more about component-related knowledge. The more knowledge we accumulate, the more help we get Bigger.

The above is some knowledge on how to recognize the components on the integrated circuit board, I hope it will be helpful for you to learn the basic knowledge of electronic components!