For novice buyers in the electronic market, the first thing to learn is to identify the authenticity of electronic components, which is also one of the necessary skills. Earlier, some buyers complained that there were too many new products in the market, which was also worrying. Today, the editors of Dongwo electronics also organized several skills to identify the authenticity of electronic components in the market, share them with you, and then introduce them in detail.

When it comes to the authenticity of components, we only need to distinguish whether the components are original or a large number of new components. The new bulk goods listed here are refurbished or disassembled parts and are processed and reprocessed equipment. Therefore, people in the industry usually call them new bulk goods.

At the same price, everyone wants to buy new equipment with new functions, so common sense is needed to determine which are original new products and which are large-scale new parts.

1: Can distinguish the authenticity of electronic components:

First, if we want to distinguish the authenticity of electronic components, we need to understand the difference between the original products and the new batch products.

1: What is a brand new original product?

Brand new original goods are brand-new goods with original words and packaging. The label usually has complete model, batch number, brand, all packaging quantity, code and bar code. Some manufacturers have tested all qualification parameters, including domestic original products, which are usually expensive.

2: What are new commodities?

In fact, it is loose and new (i.e. original goods without original packaging)

A. Customer demand is lower than the whole package. The whole package driven by the original price is disassembled, and some chips are sold at high prices, while others are not packaged.

B. For transportation reasons, the supplier will open the original packaging of the goods to facilitate transportation. For example, the original goods from Hong Kong should be transported to Shenzhen and other places. In order to reduce tariffs, many people removed the original packaging and took it to the customs alone.

C. New and old commodities: most of these commodities are commodities with long storage time and poor appearance, and can only be used as spare parts.

2. Quickly identify the authenticity of electronic components

1. Check whether there are grinding marks on the surface of the circuit board. The polished surface of the chip will have fine lines or even micro marks previously printed, and some of them will be covered with a thin layer of paint, which looks a little smooth without plastic texture.

Look at the print. At present, most chips are laser marked or printed by special chip printers, and the handwriting is bright, indistinct, fuzzy and difficult to remove. Due to the corrosion of the cleaning agent on the handwriting edge, the updated chip will have a "peeling feeling", or the printing is fuzzy, different in depth, uneven, easy to remove or too obvious.

Look at the heels. Most of the original IC pins should be so-called. Silver pin, dark but uniform in color. The surface shall be free of oxidation.

4. Check the manufacturing date and packaging factory label of the equipment. The labels of the original products, including the labels at the bottom of the chip, shall be consistent, and the production time shall be consistent with the products of the equipment, while the labels of the unmarked updated films are confused, and the production time is different.

5. Measure the thickness of the device and look at the edges of the device. Many original polished and refurbished laser components (mainly power supply equipment) need deep polishing to remove the original marks, so the total thickness of the equipment will be far less than the normal size. However, if it is not compared or measured with the fixture, it is difficult for inexperienced people to distinguish. However, there is a flexible method to view the front end of the equipment.

If there is a chip, we can't judge with our eyes and experience. We can use writing tools, such as magnifying glass and digital magnifying glass, to polish the refurbished chip watch. There are small holes, which we can't see with our eyes, so we need to use observation equipment! There are several key points:

1) Look at this type. Generally speaking, the words that can be removed with chemical diluents are refurbished goods, and the original goods cannot be removed.

2) Look at the driving angle. The pins of the original products are very neat and simple, while some renovated pins are irregular and slightly bent.

3) Look at the locating hole. The holes for locating the original cargo are relatively consistent. Some renovations have different depths, or they are really polished. If you look closely, you can see the traces of the original positioning holes. We should also pay close attention to it in practical work. Some counterfeiting processes are quite high, so we should be very careful when buying!

The above mentioned is "how to identify the authenticity of electronic components?" Look at me. I'm sure you know something about it. In the later stage, if you want to know more about electrons, you can still focus on Dongwo electron. We are a professional supplier of protective electronic equipment. Our products include TV voltage suppression diodes, electrostatic discharge protection devices, varactors, ceramic gas discharge tubes, self-healing fuses, semiconductor discharge tubes, etc., Various types, complete models, free selection and support services.