TECHNET Archives

August 1998

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"Stephen R. Gregory" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 24 Aug 1998 21:57:31 EDT
Content-Type:
text/plain
Parts/Attachments:
text/plain (51 lines)
Hi ya'll!

I'm pretty sure that one or two of you "ol' crusty" types (I mean that in a
GOOD way), have run across this problem I have a time or two. I have this
board I'm building in a quasi "prototype/pre-production" run that has a PTH
rectifier diode installed vertically...some of you have may have guessed what
my problem is already from my subject, the hole's too small.
Lead diameter is right around .050" +/- a mil or two, guess what the hole size
is? .050", +/- a mil or two...that's just peachy ain't it? It goes two times
per board, and we gotta' build a hundred of these, maybe two hundred.

So tell me, what have all you "old salts" done to make a square peg to fit in
a round hole? I've had some REALLY GOOD suggestions from some "experts" here,
one was to get a dremel and drill the hole out (sounds good to me!...snicker),
another was to get a can of "Freeze-it" and spray the diode leads with it,
then hurry up and stuff it in the hole before it warms up and expands...that
sounded pretty keen too, except it's hard to hold the diodes when you're
wearing mittens to keep from getting your digits frostbitten.

So I told my "helpers" that I really appreciated their suggestions, but that I
would like to give the technet a chance to offer some guidance to me, and that
no-way were the suggestions from the TechNet going to be as good as theirs,
but I wanted to see what popped up...and I would come to them if I needed
anymore "help"...in other words, don't call me, I'll call you.

I'm sure glad this is email, it would be kinda' hard to carry on this
conversation with my tongue in my cheek like this...

So, what's the verdict? Am I hosed? I looked around on the NET trying to find
the same spec'd diode with smaller lead diameters, but no joy. The only two
companies I found were Motorola and General Instruments, and they both listed
the same thing that I have now.

Is there any trick that any of you have done to make something like this work?
I'm afraid if I don't figure something out, I'll be in mittens spraying diodes
with freeze-it on the production floor...ya' gotta save me!

-Steve "soon to be numb-fingers" Gregory-

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################


ATOM RSS1 RSS2