29/12/2022
The first picture will show you which pirated chips are in the worst hit areas
Based on our 7 years of experience in small editing, let's take a look at the "worst hit areas" in chip, diode and triode industries.
1. Operational amplifier IC
The first is the operational amplifier. The operational amplifier is a standardized crystal tube amplifier circuit module, which can be used in most circuits and has a wide range of applications.
At the same time, it is also an early field of counterfeit goods. At present, the main brands are concentrated in TI, ADI, and some ON and NS.
The most common models of counterfeit goods are LM324 LM358 LM318, etc.
2. Power IC
The second is power IC, which is a common counterfeit brand, including ON and TI
The most common counterfeit models are TL431 and AMS1117 series.
3. Interface IC
Interface IC, the common counterfeit brands include TI, ADI and MAX
4. Series logic chip
Another is the logic chip of the 74 series. Speaking of the logic IC of the 74 series, the most common counterfeit brand is of course TI
5. Storage IC
Storage ICs are not many counterfeit products that can be seen at present. There are few other series except AT24C series with relatively simple structure. This is due to the high requirements for the substitutability of storage ICs, which poses a great challenge to copycats. Of course, this refers to the IC that does not include the scattered and renovated IC
6. Timing IC
Timekeeping IC, which is one of the earliest areas where copycat IC appeared on the market. The common counterfeit IC ne 555 in the market is a widely used device.
7. Chip diode triode
Speaking of the diode and triode, this common counterfeit model includes S8050 S8550 S9014 4148 SS14, etc.
There are so many examples above. To sum up, the rule is——
The pirated components are basically stuck in peripheral circuits. The peripheral circuits in semiconductors are relatively simple and low integration compared with the master chips. Besides, most of them are general-purpose devices and have a wide range of applications, so there are relatively many ways to obtain them.