Counterfeit electronic components are not a new phenomenon, but China’s new export laws have resulted in an explosion of counterfeit parts hitting the market. The main reason for the recent change is that Chinese export laws now allow almost anyone to export. In the past there were stringent regulations in place, but beginning in 2003 as part of their inclusion in the WTO (World Trade Organization) China made some drastic changes to their export laws. Since then entire high rises have been converted to electronic component distributor markets. You can find almost any component in one building. There are hundreds of small electronic component shops under one roof, all stuffed to the brim with boxes of reels, trays and tubes of semiconductors.
When you combine the decreased regulations for trading and the ease of marketing electronic components through the Internet it compounds the problem. There are a number of trading sites for electronic components but only a few that are using precautionary measures when accepting new members. The majority will list the inventories of anyone who will pay the monthly fee.
Another method of counterfeiting is by starting with a similar part and marking it to the customers order. Often times there are other manufacturers of components that make similar parts.