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Electronics => Repair => Topic started by: ErwinsCat on July 23, 2019, 01:42:09 pm

Title: can anybody identify this SMD part? the part said GA S3
Post by: ErwinsCat on July 23, 2019, 01:42:09 pm

Hi,

can anybody identify this SMD part? the part said GA S3 and silkscreen said U108 and 7711
attached a photo for size comparison I hope it helps!
 
Thanks

Title: Re: can anybody identify this SMD part? the part said GA S3
Post by: gamalot on July 23, 2019, 03:59:48 pm

HE1A4A

Title: Re: can anybody identify this SMD part? the part said GA S3
Post by: fzabkar on July 23, 2019, 08:45:56 pm

Another possibility?

S-80230AG, Seiko, negative voltage regulator, -3V, 20mA, marking GA + xx, SOT-89-3:
http://kazus.ru/datasheets/pdf-data/4686716/SII/S-80230AG.html (http://kazus.ru/datasheets/pdf-data/4686716/SII/S-80230AG.html)

Title: Re: can anybody identify this SMD part? the part said GA S3
Post by: ErwinsCat on July 23, 2019, 10:12:00 pm

you people are geniuses!!!
yes, it has to be the "S-80230AG, Seiko, negative voltage regulator" how did you "GA S3" translate to "S-80230AG, Seiko, negative voltage regulator" ...
Thank you very much.

Title: Re: can anybody identify this SMD part? the part said GA S3
Post by: fzabkar on July 23, 2019, 10:38:51 pm

http://www.smdmark.com/en-US/search/code?id=GA (http://www.smdmark.com/en-US/search/code?id=GA)
http://chip.tomsk.ru/chip/ChipDoc.nsf/vc1?readform&start=1500&view=smd&cat=G&count=500 (http://chip.tomsk.ru/chip/ChipDoc.nsf/vc1?readform&start=1500&view=smd&cat=G&count=500)
https://www.google.com/search?q="s-80230ag"%20filetype:pdf (https://www.google.com/search?q="s-80230ag"%20filetype:pdf)

Title: Re: can anybody identify this SMD part? the part said GA S3
Post by: ErwinsCat on July 25, 2019, 07:18:07 am

I found a replacement on eBay https://www.ebay.com.au/itm/5PCS-X-S-80230AG-GA-SOT89-SEIKO/333124381628?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 (https://www.ebay.com.au/itm/5PCS-X-S-80230AG-GA-SOT89-SEIKO/333124381628?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649) 
It doesn't look very promising but I ordered them anyway. it seems like an obsolete part. how people find a replacement for parts like this? I spent a couple of hours on mouser and djkey couldn't find anything to replace this part... it seems very odd!!! I thought there must be lots of replacement for this part (-3v regulator)

Title: Re: can anybody identify this SMD part? the part said GA S3
Post by: MaxFrister on July 25, 2019, 06:29:31 pm

One resource for obsolete parts is octopart:

https://octopart.com/search?q=S-80230AG