[sdiy] THAT 2155 on sale

sleepy_dog at gmx.de sleepy_dog at gmx.de
Sun Apr 19 19:33:10 CEST 2020

Gordonjcp wrote:
> You should only ever buy components from China.
> The one and only time I've ever had "fake parts", they were mislabelled 78L05s.  The clue was that they came from America.
> Who ever heard of an American chip manufacturer?


Apart from the made-in-China-under-supervision stuff.

They do like to sell fake MAX3232 via ebay and Amazon, which go into
latch-up when sneezed over at the wrong angle.

And they really like to sell fake power transistors at Chinese ebay.
They misunderstood the meaning of the word "die" in terms of necessary
ingredients, so that's what they do when trying to operate them at 1/10
of the spec'd power to dissipate. (cutting them open reveals small
signal BJT die - hence the unbelievably high hfe for those, dead giveaway)
And that's what I witnessed myself as some hobby electronics DIYer doing
this on a couple weekends a year.
I'm sure there is far more out there.

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