[sdiy] I'm confused

[Theo]

I got some 4000 TL082 from surplus, dead cheap.
NOS from TI, good stuff.
But while I thought the 082 where SO8 it turned out to be much more exotic
QFP8 (almost the same but wider).
So when I run out it will be time to redesign some PCBs ...
Now I always check the manufactures website for part details,
usually all details for the ordercodes are scattered there.
Often some info is in the packaging documents and some in the data sheet and
some in the selection trees.

Got some other good surplus deals too, but also a few bummers.
Most of the time surplus seem to be ok though,
but if there is no complete manufacturer code that can be checked,
I don't take gamble.
However the biggest bummer is still from Electronic Goldmine "U not
American, we don't process order".

Cheers,
Theo


----- Original Message -----
From: J. Larry Hendry <jlarryh at iquest.net>
To: synth DIY <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, November 15, 2003 5:44 AM
Subject: [sdiy] I'm confused


> I was looking at some TL082 op amps.  They look like they might be pretty
> decent general purpose amps.  However, like many of these ICs, they have a
> variety of suffixes at the end of the number.  I can see some different
ones
> for different packages. But, I see a variety of suffixes even for the DIP
8
> package.  In particular, I see IP as a prefix.  I have found these surplus
> for about 1/3 the regular price.  So, I wonder the significance of the
> prefix (not just on this one).  Anyone care to shed some light on this for
> me or direct me to a good FAQ or other reading material on the subject?
Are
> spec "rejects" the ones that end up on the surplus market?
>
> Thanks
> Larry H.
>
>
>