Electronics > Beginners
W27C512 EEPROM Frustrations
wraper:
--- Quote from: CRCLARKE on January 05, 2020, 08:32:40 pm ---1. Why relabel something other than what it is? After all, it already has a label and proper function, it would seem easier to sell an orange as an orange rather than trying to paint it to look like an apple.
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Because you can sell counterfeit (functionally similar) or salvaged component as new and genuine. That's besides cases when internals do not match in function. Even in those cases you can "create" what's currently in demand.
--- Quote ---then even at a $1 each per component
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Done by cheap and fast labor. If you create $100 of components per hour with $10 labor, it's a quite decent profit. In cases when components are counterfeited from scratch, not salvaged from e-waste, process is mostly automated like in normal IC production. Don't forget that you can buy stuff from China for less than $1 including shipping. Compared to that process of counterfeiting is a gold mine.
--- Quote ---I can buy almost any new component or even IC's for a $1 or less.
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There are tons of counterfeit components sold for <5 cents a piece.
wraper:
--- Quote from: CRCLARKE on January 05, 2020, 08:51:21 pm ---but they do not offer a lot of options for eeproms.
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Because you want to buy obsolete stuff no longer in production. Your best bet is compatible component from smaller manufacturer which produces alternatives for obsolete components.
--- Quote from: CRCLARKE on January 05, 2020, 08:32:40 pm ---why would anyone refurbish a capacitor? for money no less? :horse: :palm:
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Because nobody will buy used with few exceptions like producers of counterfeit power bricks. But don't expect they will pay the same price.
wraper:
Actually recently I found counterfeit (e-waste) 330uF 450V capacitors in power supplies used in elemental analyzers which cost around $30k. Made by German manufacturer (fuck you Eltra https://www.eltra.com/). Although those idiots outsourced PSU to some dodgy Chinese manufacturer.
CRCLARKE:
i can see the value in some components, but for the most part it seems like setting up to counterfeit money, but only producing dollar bills.....
with a bit more effort you could counterfeit something worth the profit, or just make an authentic product......
and i have no issues with used components, i use them often in repairs, but i know they are used and they work just fine... usually, but that is the risk of used.
amyk:
Besides the discussion about fake parts, I would also recommend investing in an oscilloscope. Even genuine parts are unlikely to tolerate timing and voltage outside of spec. "Externally timed" EEPROMs like these can be easily damaged if the erase/program pulses are too long.
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