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Date: Wed, 14 Jan 2015 12:48:30 +0100
From: Gabriel Paubert <paubert AT iram DOT es>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Any good repository for datasheets in pdf out there?
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On Wed, Jan 14, 2015 at 07:40:17AM +0100, Svenn Are Bjerkem wrote:
> On 13 January 2015 at 20:23, Girvin Herr <girvin DOT herr AT sbcglobal DOT net> wrote:
> 
> > I am not sure what kind of "metadata" you need to connect to a datasheet.
> > Creating a repository may be redundant and not worth the effort
> 
> 
> The most important metadata is our internal component code for production
> for the board. This  goes into the BOM to whoever produces the board. We
> also have the experience that we need to handle pdf locally as websites,
> companies and parts obsoletes.

I've just been bitten by another problem, changing specifications
without changing the part number nor anything else.

For some reason, I need to test a circuit down to liquid nitrogen
temperature, and I had decided to use Honeywell's HEL-705-U series
RTD (platinum temperature sensors, 1kohm at 0C). The temperature 
range was specified as -200C to 260C, they recently changed the
lower end of the temperature range to -70C. I have the old and
newer datasheets as a proof. Reducing the range of a temperature probe
by 130C without even touching the part number is unacceptable in my
eyes, I sent them an email (trying to be polite as my opinion on
their behaviour is not printable) but did not get any answer.

It's a mess, I had designed an enclosure with temperature sensing
points designed to accomodate the probe. I have a few probes bought
last year in stock but I need ~25 more to finish the project, and I
don't know whether new ones will work or not.

    Regards,
    Gabriel