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Find electronic components

More alternatives used in markets in Shenzhen China
www.icgoo.net

www.ickey.cn

www.hqew.com

www.szlcsc.com

And for more international parts (still used in mainland a lot)

www.eciaauthorized.com

Octopart is a more generic site for discovering chips and getting an idea of the price, but still it fetches crappy prices from Digikey, Farnell, Mouser, etc.

If your product is being made in China and you are making the design choices, a quick Taobao search (or using the above links) is great to see how popular a part is. Not recommending to buy parts from Taobao though (unless you are more seasoned). There are also a lot of agents that can source parts maybe 1-2 levels below the original factory. Their prices are so good it's unbelievable but they are hard to find and validate. Having volume also helps.

From https://news.ycombinator.com/item?id=19110698