How to identify genuine and fake three terminal switch power supply chips
Release Time:
2024-09-03 11:39
Source:
For many years, the electronic market has been plagued by a mix of good and bad, with shoddy products being passed off as good and fake products being used as fake. Many manufacturers have suffered greatly from this situation. So, how can we distinguish the authenticity of a three terminal switching power supply chip? There are generally three types of so-called fake chips: one is disassembled, one is refurbished, and one is leaked without QC. So how to distinguish?
Disassembled chips usually have traces of soldering, oxidation, scratches, and inconsistent batch numbers. These chips have been used for many years, aging severely, and some have already oxidized, which can easily cause virtual soldering and bring unpredictable hidden dangers to the equipment. Refurbished and dismantled products have a significantly shortened lifespan, and some may even be damaged and unable to function properly, posing the same hazards as the first type. Refurbished chips are usually polished and re typed, making them look beautiful and with consistent batch numbers. However, the polished feet are smaller and smoother, and the clarity of the characters is different from the original ones. A comparison will reveal the difference. As for those that have not undergone QC, it is difficult to identify and can only be distinguished through functional testing. Those that have not undergone QC have a lower pass rate. If the pass rate of testing is lower than normal, it is basically called loose new.
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How to identify genuine and fake three terminal switch power supply chips
For many years, the electronic market has been plagued by a mix of good and bad, with shoddy products being passed off as good and fake products being used as fake. Many manufacturers have suffered greatly from this situation. So, how can we distinguish the authenticity of a three terminal switching power supply chip? There are generally three types of so-called fake chips: one is disassembled, one is refurbished, and one is leaked without QC. So how to distinguish?
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