BanglaH,
Thanks for tip on new TO3P from Digikey.
$2.25ea is a very fair price.
2SC5200N(S1,E,S) Toshiba Semiconductor and Storage | Discrete Semiconductor Products | DigiKey
Thanks for tip on new TO3P from Digikey.
$2.25ea is a very fair price.
2SC5200N(S1,E,S) Toshiba Semiconductor and Storage | Discrete Semiconductor Products | DigiKey
Dunno if this is the right forum/thread to ask you guys about possible faking the TI TPA3118. I'd assume, they might blacktop/sanddown TPA3130 to sell TPA3118.
#1 Genuine, like those i have directly from TI
#2 possible Fake, Pin1 indicator not made by the mold but marked Lot#4AAD6TT(G4)
#3 possible Fake, Same Lot# as #2 but with molded Pin1 indicator
#4 possible Fake, Same Lot# as #2
#5 possible Fake, Same Lot# as #2 but bigger Pin1 indicator
#6 possible Fake, Different TI logo pattern than the others, smudges on font
#7 possible Fake, different distance of Pin1 indicator compared to #1 and #3
What do you guys think?
#1 Genuine, like those i have directly from TI
#2 possible Fake, Pin1 indicator not made by the mold but marked Lot#4AAD6TT(G4)
#3 possible Fake, Same Lot# as #2 but with molded Pin1 indicator
#4 possible Fake, Same Lot# as #2
#5 possible Fake, Same Lot# as #2 but bigger Pin1 indicator
#6 possible Fake, Different TI logo pattern than the others, smudges on font
#7 possible Fake, different distance of Pin1 indicator compared to #1 and #3
What do you guys think?
Attachments
#6 might be correct logo, but well cleaned chip ????? No mistake in G4 either, not in G or in horizontal allignement G4, but size of print not directly visable in comparison. The funny chip with laser marked dot had larger print than genuine.
#3 might be original laserprint that was used to make the series of "laser dot" and "bad alligned G4" series
#3 might be original laserprint that was used to make the series of "laser dot" and "bad alligned G4" series
Yes, would think so too. #6 looks pretty much fake to me. (Logo is to sharp with thin lines and different "i")
#6 is very sharp/thin, t in logo is also visibly separate line in gmarsh chip I used as comparison, so cleaning maybe I thought. The entire print on #6 is a little more center chip or lower than expected on tpa3118, that is also true for most Sanwu sold by Sanwu board chips.
Hi, X
so we can little bit sure there.
The IRFP are in some different Logos- see Kees- and i also, though you too have some
who showed in maouna pics.
....Please take a look at the pics I've attached.
According to Rod Elliot's pages...these are counterfeit due to MEXICO at the bottom row...and not MEX...on 2nd row.
Also...date code not in correct place.
However...these were obtained from a 3rd party some 14/15 years ago as samples from ON-Semi, and I believe this info. to be reliable.
I've chatted with ON-Semi...and provided the picture below.
They suggest that printing standards/protocols may have changed over the years...and not to rely on the internet info.
They most certainly PASS the acetone test....but I haven't been able to test them conclusively yet.
Any thoughts out there please?
According to Rod Elliot's pages...these are counterfeit due to MEXICO at the bottom row...and not MEX...on 2nd row.
Also...date code not in correct place.
However...these were obtained from a 3rd party some 14/15 years ago as samples from ON-Semi, and I believe this info. to be reliable.
I've chatted with ON-Semi...and provided the picture below.
They suggest that printing standards/protocols may have changed over the years...and not to rely on the internet info.
They most certainly PASS the acetone test....but I haven't been able to test them conclusively yet.
Any thoughts out there please?
Attachments
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I have some with similar marking I obtained direct from ON Semi as samples about 15 years ago. So I would treat them as kosher.
Great news...and yours with similar (supposedly dubious!) markings.
Will try to test 'em this week.
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This post from OldDIY ... the image will not open from the link that takes some time to appear on the forum
It does open from the link provided in the notification email and shows a group of devices that are rather suspicious looking.
It does open from the link provided in the notification email and shows a group of devices that are rather suspicious looking.
...and these are counterfeit I take it!!
...although the print on ON MJ15xx suggests they're pukka!!
What a mess!!!
They need testing on a good semiconductor analyser.
Fakes often have poor breakdown voltage.
Also fakes tend to have smaller dies meaning they die sooner on high powers.
Fakes often have poor breakdown voltage.
Also fakes tend to have smaller dies meaning they die sooner on high powers.