Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

Fake OPA1612 from China
Fake OPA1612 from China
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 14th January 2019, 03:11 PM   #1
elfenthau is offline elfenthau  Germany
diyAudio Member
Join Date: May 2015
Default Fake OPA1612 from China

Once again ... beware from buying chinese audio opamps!
I bought 10 OPA1612 from a chinese ebay seller. They are ~6..7 EUR at
Mouser. I payed 6.80 EUR for all ten. So i expected to get fakes but i
wanted to know it for shure.
I opened one SO-8 package and put it under the microscope in our workshop.
It turned out that these OPA1612 are cheap TL082 FET Opamps as you
can see on the photos. I also attached a chip schematic from the 1999
datasheet from TI. The similarity of the shown photos with that of the
datasheet looks obvious to me allthough the quality of my photos is not
the best. The crosses you can see on the chip are the butterfly input
FET transistors. The OPA1612 is a bipolar Opamp instead!
Attached Images
File Type: jpg 3.jpg (263.7 KB, 62 views)
File Type: jpg 190114-01.jpg (129.4 KB, 65 views)
File Type: jpg TL082_datasheet_49462_4a.jpg (77.9 KB, 65 views)
  Reply With Quote


Fake OPA1612 from ChinaHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Diy DAC/amp with PCM2707, PCM1794, OPA1612 r4pt0r4 Digital Line Level 10 19th December 2018 07:45 AM
Fake Elna and Nichicon caps...China ES9028 Wungun Digital Line Level 4 19th January 2018 07:35 PM
OP275 dual OPA, might be many fake source originated in China Jim Hsu Chip Amps 20 9th July 2017 06:43 AM
Fake ScanSpeak speaker from china? maartentje Multi-Way 21 27th April 2013 11:37 AM

New To Site? Need Help?

All times are GMT. The time now is 01:33 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio