Yes I did respond in that older thread. What I am basically asking for is
more industry documentation to back up arguments for changing PN's. By
'industry standard' I guess I meant more so 'industry trend'. The latest I
hear is 72% of semi suppliers and 49% of electromechanical are changing
PN's. So I feel the direction is to go with changing, although an argument
could be made for leaving electromechanical alone.
Our PN's for electromech contain approvals for a mix of Pb and Pbfree parts.
I feel we need to either change our PN's and include only the Pbfree for
these, or remove the Pb parts from the existingPN's. But some of these PN's
are on a controlled AVL, which makes that more difficult to remove
previously approved parts. That's why I want to change PN's. Many of the
approved parts, when they were approved, contained Pb, now they don't.
Does termination finish changes count under "form/fit/function", when mfr's
insist they are fully backwards compatible?
-----Original Message-----
From: MA/NY DDave [mailto:[log in to unmask]]
Sent: 30-May-05 6:51 PM
To: [log in to unmask]
Subject: Re: [LF] PN's changing
Hi Genny, IPC LF Listservers,
Back awhile ago we had a long tread on this subject (Feb 2005). You might
have even been involved. Read that information.
BTW, Originally a long while ago, I was also against new P/N's because of
the R&D and the design records issues. At that time I was happy only with
an E/C (Engineering Level Change)
My only quick idea is to USE your Distributors or Service companies as your
hammer. I.E. Someone outside of your company that will remove you from the
argument. Distribution places are going to have to handle the logistics,
stocking, repair etc issues.
Components that are already fully RoHS compliant do not need a new part
number.
Good Luck, The sooner your company bites the bullet the better.
Yours in Engineering, Dave
YiEngr, MA/NY DDave
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