Jim,
We have implemented an internal numbering system, and you might say at first
that
it is just as difficult as manufacturer part number, but when bringing new
engineers in they came up to speed rather
quickly to be able to pick part numbers out for a design. We call them SCD
"Source Control Drawings" where all manufacturers of a particular part that
meet form fit & function
would be listed with there respective Manuf part numbers.
The system goes like this
XX-XX-XXXXX
Where the first XX define what the part is 00, 01 ,02 , 03 etc in our case
37 is fixed resisitors and 38 is variable.
The second 2 XX are the type of part like 0805 1206, 1/2w 1/4w ceramic cap
etc.
The last 5 X's are value so like yours a 10205 would be a 1K 5% resistor.

37-76-10205 in our system would be an 0805 1K 5% 1/10W resistor.

That way you quickly memorize the first 4 digits and the last 5 are common
sense for part number

For IC's say the last 5 digits for say an HCT244 are 00244 where the middle
2 x's define HC HCT LVX etc

12 is our IC first 2 digits so 12-72-00244 is a 74HCT244

We decided to use XX-7X-XXXXX where the "7" in that location defined the
part being SMT so you can easily
distinguish SMT to PTH parts.

Basically it uses 2 fields that I think are easily rememberable and the rest
is really a part of the MFG number
that actually defines part easily.

Don't know if this is what your looking for? Hope it helps or sparks other
ideas.
Bob Wolfe
Executone

> -----Original Message-----
> From: West, Jim [SMTP:[log in to unmask]]
> Sent: Friday, September 24, 1999 11:22 AM
> To:   [log in to unmask]
> Subject:      [TN] Part numbering system
>
> Hi Everyone,
>
> We are in the process of bettering our part numbering system.  I was
> wanting
> to know how everyone out there handles their numbering and description
> fields.  Example:  part number CRCW0805102JRT1 would equal - 0805, 1Kohm,
> 5%, paper tape.  I believe the manufacturers number should be used for the
> part number, but how do we describe this so that anyone can find this part
> if they are needing a 0805, 1K, 5% resistor?  Just wanting to see how
> everyone does this with any of their parts.  Do you use the manufactures
> part number or create your own?  How do you describe you part for ease of
> retrieval?  Any response would be greatly appreciated!
>
>
>
> Jim West
> Manufacturing Engineer
>
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