Are Chinese counterfeit semiconductors always inferior?

[WA2SQQ]

Many of us have ordered semiconductors off of eBay only to discover that they were counterfeit. You assume that these are inferior, but are they?
Here’s a short video that might change your mind.

https://youtu.be/OJaooiIIlas?feature=shared

[Opcom]

Counterfeits are not always inferior over a range of common applications, but it is a big problem with high performance or high power parts.

A customer ended up with tens of thousands of faked ICs because they greedily thought to buy from a nobody unlicensed Chinese broker for a low price.

The fake parts were shipped directly to the customer's contract manufacturer also in China and entered the product stream.

The disaster to the customer's pocketbook was in the millions and their reputation suffered greatly inside the industry probably costing as much. The completed product had such poor performance that it could not be sold to the monster-sized businesses that used them inside their infrastructures. Names can never be named!

[KL7OF]

I have had good luck with UT Source.