Although the IPC-610 allows it, it is my experience that calls for cautiousness: if the components prevent free outgassing from the primary side, if the operator is not fully minded, if the solder could not flow and be shown in the primary side... too many risk factors. Make your best to prevent this situation.

Regards
Ofer Cohen
Manager
Quality Assurance, Reliability and Production Technologies


> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of Lance Mayes
> Sent: Thursday, March 04, 2004 23:34
> To: [log in to unmask]
> Subject: [TN] Lead Protrusion
> Importance: High
> 
> 
> TechNetters:
> 
> I have a question on lead protrusion.  We have ordered in 
> components that
> does not come through the PCB like it states in IPC-A-610C, 5.2.7.1,
> figure 5-34.  It is more along the L Min in the figure 5-34.  Is this
> acceptable for Class 2 manufacturing?  I told my supervisor this is a
> process indicator and should be corrected but he wants some 
> more input and
> so do I before we give the go ahead. Anxiously waiting.
> 
> Thanks
> 
> 
>                         P.  Lance Mayes
> 
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> -----------------------------------------------------
>                         Mfg. Trainer
> 

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