1. What are electronic components
Electronic components are the basic components of integrated circuits, including diodes, audions, integrated circuits, resistors, capacitors, inductors, transformers, switches, transistors, etc. These components have different functions, and they are connected in different ways. If you want to choose the appropriate components, you must have a certain understanding of electronic components. There are many kinds of electronic components, and different kinds of components have different characteristics, which must be paid attention to in use. For example: simple transistor has NPN type and PNP type two, these two kinds of transistor in the formation of the circuit, it must be selected and connected according to its characteristics. Improper use can lead to circuit failure.
2. Method of distinguishing electronic components
The identification method of electronic components is mainly through the appearance, shape, mark and other characteristics of the judgment. Appearance: under normal circumstances, the electronic components on the circuit board are installed on the pad, if the pad surface has stains or oxidation, it will make the components of the welding off, so the appearance is an important aspect to distinguish components. Shape: The shape of electronic components can be judged by intuitive observation. This is Glenair-M85049-58-10. Generally speaking, capacitors are cylindrical or round, resistors are rectangular, diodes are oval, and integrated circuits are square or rectangular. Mark: The mark of electronic components refers to the symbol or mark printed on electronic components. Generally speaking, the mark of capacitor is "C", the mark of resistor is "R", the mark of diode is "D", and the mark of integrated circuit is "IC". Common electronic components mark: capacitor: C resistor: R diode: D integrated circuit: IC
3. Common marks of electronic components
Electronics logos can sometimes be confusing and confusing to read. There are many reasons for this, such as different manufacturers, the change of time and personal habits. However, reading and writing electronic symbols is not difficult, as long as you master some basic rules. First, let's look at common electronic component markers. Common ones are: 1) positive electrode: +2) negative electrode: -3) Ground: GND4) Power supply: VCC5) Signal: SIG, where + and - represent positive and negative electrodes, GND represents ground, VCC represents power supply, and SIG represents signal. The correct way to use the electronic component label is: 1) When reading and writing the electronic component label, it should be read from left to right, that is, from + to -, and then read GND last. 2) When installing the housing, you should put the + on top, the - on the bottom, and the GND in the middle. Possible problems caused by errors when installing the housing:
4. How to correctly use common electronic component signs 5. Possible problems caused by errors when installing the housing
Errors can cause problems when installing electronic components. Proper use of electronic component markers can avoid these problems. 1. Errors are common when installing electronic components. 2. These problems can be avoided by the correct use of electronic component marks. 3. Common marks of electronic components include screw marks, plug marks and socket marks. 4. The screw mark is used to mark the direction of the wire, the plug mark is used to mark the direction of plug insertion, and the socket mark is used to mark the direction of socket insertion. 5. When installing the case, errors may cause the case to fail to fully cover the electronic components, thus making the electronic components affected by moisture or dust.