[sdiy] Counterfeit chips

[jays at aracnet.com]

Even though this is a few years old this is one of my favorities. Especially the first paragraph.

<http://www.edn.com/article/CA497033.html?text=counterfeit>

Jay S.

Tom Wiltshire wrote:

> Hello All,
> 
> I recently received the following warning from someone who I'd  
> contacted trying to get hold of old CEMs:
> 
> > Please particularly be aware of a new batch of cem3374 counterfeits  
> > that have just been coming out the last month.
> > Also, IR3R01, IR3R05, SN76477N.
> >
> > The cem3374 all (so far) appear to be date '93 which should be a  
> > give away and have no part number.
> > The IR3R01 and IR3R05 can be distinguished because they do not have  
> > a 'oval cut' shape to the face of the IC such as all of that series  
> > had.
> > The SN76477N can be determined by a TI symbol embossed in the right  
> > corner but no standard date code.
> >
> > So please take care and anytime feel free to enquire on items.  I  
> > spend a lot of time and have people here dedicated to finding out  
> > this information for this reason.
> 
> I don't want to spread rumours, and obviously I have no other  
> confirmation of this, but I'm bringing it to your attention. You  
> choose how seriously you take it. It's wise to at least be aware.
> 
> T.
> 
> 
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