The drill diameter is the most important parameter (the hardest material)
from the press fit pin connector.
If you don't want the pins to bend or have loose connection, comply with
the press fit connectors requirements.


On Mon, Dec 2, 2013 at 4:28 PM, Zilber Gil <[log in to unmask]> wrote:

>
>
> Press-fit manufacturer / spec /mil (i.e. mil-c-28859B) define the
> requested drill diameter and final diameter (and minimum copper and plating
> thickness).  In may cases the PCBs manufacturer asked us to drill bigger
> diameter holes in order to get the requested final finish hole
> (manufacturer process standard). My question is (Assuming OSP finish) why
> press-fit manufacturer/std define drill hole diameter and not finish hole
> diameter and minimum copper thickness? What could be wrong if approving
> manufacturer request (bigger drill diameter, control final finish)?
>
> Thanks,
> Gil
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Reuven Rokah
> Sent: Monday, December 02, 2013 4:09 PM
> To: [log in to unmask]
> Subject: Re: [TN] Press Fit Connector Drill size/finish size
>
> What is your question?
>
>
> On Mon, Dec 2, 2013 at 2:14 PM, Zilber Gil <[log in to unmask]> wrote:
>
> > Thank Reuven,
> >
> > Assuming OSP finish then my question.
> >
> > Thanks,
> >
> > Gil
> >
> > -----Original Message-----
> > From: TechNet [mailto:[log in to unmask]] On Behalf Of Reuven Rokah
> > Sent: Monday, December 02, 2013 1:23 PM
> > To: [log in to unmask]
> > Subject: Re: [TN] Press Fit Connector Drill size/finish size
> >
> > Hi Gil,
> > If you have HASL finish, the final hole size does not reflect the
> > required press fit hole size.
> > I you have OSP for example, the final holes size of PCB is the same as
> > the press fit requirements.
> >
> >
> > On Mon, Dec 2, 2013 at 1:01 PM, Zilber Gil <[log in to unmask]> wrote:
> >
> > > Hi all,
> > >
> > > Press-fit manufacturer / spec /mil (i.e. mil-c-28859B) define the
> > > requested drill diameter and final diameter (and minimum copper and
> > > plating thickness). In may cases the PCBs manufacturer asked us to
> > > drill bigger diameter holes in order to get the requested final
> > > finish hole (manufacturer process standard). My question is why
> > > press-fit manufacturer/std define drill hole diameter and not finish
> > > hole diameter and minimum copper thickness? What could be wrong if
> > > approving manufacturer request (bigger drill diameter, control final
> > finish)?
> > >
> > > Thanks
> > >
> > > Gil Zilber
> > > Elta system Ltd.
> > >
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> > > Thank you.
> > >
> > >
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> >
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> Best Regards,
>
> *Reuven Rokah*
>
> Mobile: 972-52-6012018
> Tel:        972-3-9360688
> Fax:          076-5100674
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*Reuven Rokah*

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Tel:        972-3-9360688
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Technologies. If you have received this transmission in error, please
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