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| TNY180PN chips from AliExpress look fake but turn out to be real |
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| ESXi:
:popcorn: I kept on wondering if the chips I brought where real or fake so I took my 8 and 6mm lens took a 2.5mm hard drive a led lamp and some paper to my desk and started playing again haha. They are real (the die). But compared to the original package the "fake" chips just had laser engraving for the chip number and manufacturing date. The package quality was I guess cut down but good enough, I hope. The broken package with the more white printing is the real deal. The laser engraved one is the "fake", actually real one too! Not always when you buy from Chenzhen IC global you would except fake ones. Particularly not when you pay a price that would not even get you one real chip here from mouser while I got 10 chips delivered to my mailbox for the price of one chip, shipped! This really made me laugh :P The package photo of the die impression was from the real one, I lost the die it also blew up so wasn't sure if it was possible but given all the similarities in the impression and the Power integrations logo, I think its real? It must be real why would they bother putting in the fake logo on the die, or do they? Anyways I don't think its fake. All photos https://mega.nz/#!9NJjmCDQ!5Jr89L-95Bdpv-GOYDPIhy0WvPXMJkt0hREXEa0VnrU Photos taken with Resolution: 13 Mpx Sensor: Sony IMX258 Type: CMOS Aperture: ƒ/ 2.0 Pixel size: 1.12 µm Sensor size: 1/3.06 & 8 & 6mm cctv lenses |
| wraper:
There is nothing wrong with laser marking as such, and ICs of newer make have it. But this part is certainly not genuine. Top of the package was 100% sanded and new marking applied. It can be recycled from e-waste or lower spec part from TNY174-180 series relabeled as TNY180PN. |
| ESXi:
--- Quote from: wraper on March 14, 2020, 05:43:42 pm ---There is nothing wrong with laser marking as such, and ICs of newer make have it. But this part is certainly not genuine. Top of the package was 100% sanded and new marking applied. It can be recycled from e-waste or lower spec part from TNY174-180 series relabeled as TNY180PN. --- End quote --- Hmmm.. Alright, but how does that chip look inside (TNY174-180 series). Almost the same or not? Don't think its recycled, all pins were perfectly clean no solder or sth. The chip says Thailand with a F in the middle on the underside of the chip. But if they recycle the chip they don't extraxt the die they just sand it right? I checked all legs and they don't have any scratches on them so I guess they are real. Maybe they only thing they did was sand and write another part number on it because it's another chip, lower end one? |
| wraper:
--- Quote from: ESXi on March 14, 2020, 05:50:17 pm ---Hmmm.. Alright, but how does that chip look inside, almost the same then? --- End quote --- Chips within series have vastly different power rating, so different die size. It also could be for example from TNY280 series which have the same pinout. |
| ESXi:
--- Quote from: wraper on March 14, 2020, 05:52:32 pm --- --- Quote from: ESXi on March 14, 2020, 05:50:17 pm ---Hmmm.. Alright, but how does that chip look inside, almost the same then? --- End quote --- Chip within series have vastly different power rating, so different die size. It also could be for example from TNY280 series which have the same pinout. --- End quote --- Alright, sucks that I lost the burnt up die and that I am limited by the level of magnification. Would have loved to compare them better. Didn't knew they then almost looked the same, would have excepted the smaller ICs to just be mostly redone or changed in layout for different models of the chips. But it's almost the same as for example Intel chips. They just improve and build upon version to make it better and better. Said now, that actually makes sense, why would a programmer toss out the kernel, no he does not, he builds upon this version and improves .. |
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