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May 2017

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Subject:
From:
Steve Gregory <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Steve Gregory <[log in to unmask]>
Date:
Tue, 9 May 2017 13:07:52 -0600
Content-Type:
text/plain
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Hi All,

We just had a customer revise an assembly with us and have chosen to use
some Holtite sockets for a through-hole photo diode on the assembly.

http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=114-13033&DocType=SS&DocLang=EN

The board is really small, about 1" square and .062" thick. It also has
double sided SMT on it, so there's not much room around the holes. I say
that because from what I remember when I last used these sockets, is that
we used a hand tool that was more like a spring loaded center punch (it's
on page 6 in the PDF above) that has different tips that you changed out
depending on what part number socket you were inserting, and it took a
surprising amount of force to seat these sockets. Of course the tool is
close to $300, and I'm thinking we'll need a press fit fixture to support
the PCB when we install them because the board is only .062" thick. But our
customer says they built some proto assemblies with these sockets and was
able to press them in with their finger nail, does that sound right? I'm
thinking that the holes were probably oversized and they aren't getting the
kind of connection between the socket and barrel that they need to be
getting to have any sort of reliability.

Is my memory getting that fuzzy?

Steve

-- 
Steve Gregory
Kimco Design and Manufacturing
Process Engineer
(208) 322-0500 Ext. -3133

-- 


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