[sdiy] THAT 2155 on sale
marzacdev at gmail.com
Sun Apr 19 19:49:56 CEST 2020
Working on the miniBrute 2, I received two prototype
PCBs populated with fake LM3046 transistor arrays...
marking was strictly identical as TI ones.
... and also failing UC3843.
Just beware when sourcing your components!
Le 19/04/2020 à 19:33, sleepy_dog at gmx.de a écrit :
> 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
> 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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