Re: O.T. question on MoVs
Yes, and sometimes the fake markings are better than the real parts. Back in the late nineties a company I was working for bought a mixed lot of HEXFETS (as I recall) that we desperately needed from a sketchy source, and some started failing. We discovered that the parts that were failing were laser marked, while the genuine parts were painted. In 2000 at another company, we found a batch of fake AVX or Kemet Ta caps. They were marked the same way as the real parts but looked much better. The kicker was that they came from an A list Disty.toggle quoted messageShow quoted text
You have to buy from legit sources, and even then be watchful.
On Tuesday, August 6, 2019, 05:26:54 PM PDT, Mark Goldberg <firstname.lastname@example.org> wrote:
I am not sure how to test them non-destructively. I only buy parts from
real distributors, so you know what you are getting. Much of the stuff from
Amazon / Aliexpess / Ebay, especially from international sources is
counterfeit or bad. Markings don't mean anything either as they paint those
on fakes too.