Serious Fake IC ALC5631Q from Realtek | Makerfabs
Serious Fake IC ALC5631Q from Realtek
There always plenty of fake IC on Shenzhen local Market , to ensure customer’s project quality, in PCB assembly works, Makerfabs always purchase IC from IC retailers such as Mouser/Digikey/Farnell, or at least validated trustable local vendors because. But if the IC producer from Taiwan, it’s a bit to deal with, they are not been sold on Mouser/Digikey, and the local channel confusing.
Our currently validated vendor also do not support this IC, so we have to source them on the market, but unfortunately, the PCBA VCC and GND totally short! Crazy~
Take off the ALC5631Q and detailed checked, we found that the GND is totally short with the Pin16, AVDD. This IC is completely a joke , the only thing it did is short the VCC to GND..
And more serious, before we got a working IC, we have tried 3 different sellers, all the same, SHORT, which makes me worried if I misunderstand the datasheet….
And lucky finally I got working IC:
For the NG ICs, the center pad(GND) is short with the Pin16, while actually it should be the Pin18
short with GND, but not Pin16
Avoid purchasing IC from Huaqiang bei or Taobao, unless you becomes an expert, purchasing from Digikey/Mouser, or seek Makerfabs’ helps, especially in prototyping& small batch production