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July 2001

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Subject:
From:
"<Peter George Duncan>" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 12 Jul 2001 15:43:15 +0800
Content-Type:
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text/plain (77 lines)
IPC-A-610 states lead lengths and trimming required for Classes 1, 2 & 3 of
board. Normally, lead protrusions are cropped to 1mm to 1.5mm max. There
are other associated factors like clinching or non-clinched connections adn
lead lengths required for those, board thickness considerations, etc.

Rgds

Another Peter (Duncan)




                    PL
                    <ppwlee@YAHOO        To:     [log in to unmask]
                    .COM>                cc:     (bcc: DUNCAN Peter/Asst Prin Engr/ST Aero/ST Group)
                    Sent by:             Subject:     [TN] Lead protrusion
                    TechNet
                    <[log in to unmask]
                    ORG>


                    07/12/01
                    02:26 PM
                    Please
                    respond to
                    "TechNet
                    E-Mail
                    Forum.";
                    Please
                    respond to PL






Hello,

Does anyone know what is the standard used for prepping
the leads for through-hole boards?

What are the critical parameters one should consider
when determining the amount of trimming on the leads?

Rgds,
Peter


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