i have some people telling me that i should not use ones from eBay, but then i have some people telling me that there most likely ok to use.
No really, this is almost a tradition on the EEVblog forum now, so I guess many people don't even feel like commenting anymore.
Anyone who really has used Ebay to source their components, and really used them, knows really well that the fake ratio is just horribly massive. It's a total joke. Granted, in some product segments, you mostly get good stuff, but in some others, such as alu elcaps, discrete semiconductors like power FETs, LEDs, etc., you get basically over 90% fakes (or otherwise unusable or severely out-of-spec stuff).
On average, is it 5%, 20%, 50% or 70% crap, I don't know, but it doesn't matter; the ratio is too big anyway, so that anyone who has tried it too many times, has stopped buying the Ebay parts; except when they know
what they are doing, or simply have to take the risk.
Back to the EEVblog forum tradition; threads like this show up all the time, and it's always
people telling you not to buy the Ebay parts - which is a great general advice for any beginner - and then we see blueskull defending the market. I understand very well that he's irritated due to the more or less hidden rasistic undertones people too often show.
I like doing business with the Chinese, and I don't like the "everything Chinese is a scam or super shitty quality" mentality, which is plainly wrong.
But this is something we should and can
evaluate based on facts, not feelings. The ratio of bad stuff sold by Chinese Ebay sellers is just huge. This is a fact that everybody can confirm on their own. I have bought a lot of stuff and know very well my defect percentage is somewhere around 30-50%. Today, it's a lot less, since I only buy Ebay stuff I think I can trust on, such as pin headers. But buying the Ebay components cannot be recommended for a beginner, nor when it comes to a safety-critical component. X2 capacitors wouldn't be on my Ebay list!