fake OPA549

jaudio · 24th October 2006, 09:44 PM

I brought 6 opa549 from a guy on ebay
http://cgi.ebay.com/OPA549-Hi-Curren...QQcmdZViewItem

The one on the left is from the ebay guy,the other two(549 and541) are from TI
Is the one on the left fake?

Minion · 25th October 2006, 12:21 AM

I doubt they are Fakes as I have bought quite a few IC"s from that Guy....

I actually just got some LM3886s chip from that guy and the chips seem fine accept that the auction stated that the chips were LM3886T and the Ones I got were LM3886TF which I believe are the isolated ones and the LM3886T are not isolated but becides that they seem fine and the guy has a pretty good feedback rateing.....

Cheers

jaudio · 25th October 2006, 02:03 AM

Quote:

Originally posted by Minion
the guy has a pretty good feedback rateing.....
Cheers

I noticed, his feedback is 100%. I was thinking that he might not know

Quote:

Originally posted by Minion
I doubt they are Fakes as I have bought quite a few IC"s from that Guy....

That’s good to know. What worried me is, how different the print looks

Thanks

wrenchone · 25th October 2006, 05:04 AM

What you have to remember is that the OPA549 we devised by Burr-Brown before their acquisition by TI. I wouldn't be to surprised if the recent TI chips look different from BB chips due to the consolidation in packaging houses that must have occurred after the merger.

24th October 2006, 09:44 PM	#1
jaudio diyAudio Member Join Date: Oct 2004	fake OPA549 I brought 6 opa549 from a guy on ebay http://cgi.ebay.com/OPA549-Hi-Curren...QQcmdZViewItem The one on the left is from the ebay guy,the other two(549 and541) are from TI Is the one on the left fake?

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25th October 2006, 12:21 AM	#2
Minion diyAudio Member Join Date: May 2006	I doubt they are Fakes as I have bought quite a few IC"s from that Guy.... I actually just got some LM3886s chip from that guy and the chips seem fine accept that the auction stated that the chips were LM3886T and the Ones I got were LM3886TF which I believe are the isolated ones and the LM3886T are not isolated but becides that they seem fine and the guy has a pretty good feedback rateing..... Cheers

25th October 2006, 05:04 AM	#4
wrenchone diyAudio Member Join Date: Feb 2004 Location: Silicon Valley	What you have to remember is that the OPA549 we devised by Burr-Brown before their acquisition by TI. I wouldn't be to surprised if the recent TI chips look different from BB chips due to the consolidation in packaging houses that must have occurred after the merger.