When choosing electronic components, there are many factors to consider. First of all, we should choose products produced by qualified manufacturers to avoid failures caused by fake and inferior electronic components. Secondly, according to the use of the product to choose the appropriate electronic components. Finally, and most importantly, it is important to distinguish between real and fake electronic components.
1: Classification of electronic components
1, resistance: resistance refers to the circuit can prevent the flow of current components. It splits the current in a circuit into two parts so that one part goes through and the other doesn't. 2, capacitance: capacitance refers to the circuit can store charge components. When the charge is stored in a capacitor, it is called a "capacitor charge"; When an electric charge is released from a capacitor, it is called a "capacitor discharge". This is TE-Connectivity-Potter-Brumfield-1462042-6. 3, inductance: inductance refers to the circuit can produce magnetic field components. The inductor consists mainly of a coil and a magnetic core, whose function is to cause an electric current to form a magnetic field in the coil. 4, diode: diode is a semiconductor component with two poles (positive and negative). The main function of a diode is to divide the current in a circuit into two parts, so that one part goes through, the other part does not. 5, triode: Triode is a semiconductor component with three poles (positive, negative and intermediate pole).
2: Precautions before selecting electronic components
When selecting electronic components, some considerations need to be taken into account, such as the type, size, function and performance of electronic components. The type of electronic components is determined according to the requirements of the application, the standard to distinguish the size and function of electronic components is based on the size and requirements of electronic equipment, and the standard to distinguish the performance of electronic components is determined according to the working principle of electronic equipment. When selecting electronic components, some considerations need to be taken into account, such as the type, size, function and performance of electronic components. The type of electronic components is determined according to the requirements of the application, the standard to distinguish the size and function of electronic components is based on the size and requirements of electronic equipment, and the standard to distinguish the performance of electronic components is determined according to the working principle of electronic equipment.
3: The method of distinguishing true and false electronic components
1. Check the package: if it is some big manufacturers' products, usually printed with the manufacturer's LOGO, or product model; 2. View the appearance: Generally speaking, the better the appearance quality of a component, the clearer the color, the higher the surface flatness; 3. Check labels: domestic common electronic component labels include "certificate", "environmental protection mark", "3C mark" and so on; 4. Check product packaging: Generally speaking, electronic components with better quality will use more durable packaging materials, such as aluminum foil bags, plastic bags, etc.; 5. Check the anti-counterfeiting mark: some big brands of electronic components will be printed on the product packaging of the anti-counterfeiting mark, if there is no mark or mark is damaged, it may be a fake.
There are a few things to keep in mind when shopping for electronic components. First of all, choose products produced by qualified manufacturers to avoid failures caused by fake and inferior electronic components. Secondly, according to the use of the product to choose the appropriate electronic components. Finally, and most importantly, distinguish between real and fake electronic components. Only in this way can we ensure the safety and reliability of use.2