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Subject:	Re: Connector pin protrusion
From:	Guy Ramsey <[log in to unmask]>
Reply To:	[log in to unmask]
Date:	Wed, 5 Sep 2007 14:31:49 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (47 lines)

We ask for 0.5 mm as a minimum for lead protrusion. This is necessary for
good thermal transfer into the pin for wave and hand soldering. 

Pin in paste can be less, then you need to do some homework. 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Phil Nutting
Sent: Wednesday, September 05, 2007 12:18 PM
To: [log in to unmask]
Subject: [TN] Connector pin protrusion

Good Afternoon,

In reviewing PTH connectors it looks like the standard pin length (for the
through board connection) is double the board thickness.  For an
0.062 board the pins are 0.120" long and for a 0.090 board the pins are
0.180" long.  We have some connectors that have 0.130" long pins that we
want to use in an 0.090" thick board.  I maintain this shorter pin will be
problematic to solder reliably.

Am I on the right track?

Phil

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