What is the application. One or multiple insertions? The environment. Au plating thickness,
Victor,
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Tuesday, November 16, 2010 7:19 AM
To: [log in to unmask]
Subject: Re: [TN] Any concern for this connector?
Good Day Wee Mei,
I have your pictures posted. They are here:
http://stevezeva.homestead.com/Connector_1.jpg
http://stevezeva.homestead.com/Connector_2.jpg
The little black particles remind of something I saw on some assembled
boards one time. It came from the black conductive foam that was old and
breaking down that lined the bottom of the trays we were using to transport
the boards.
I'm not really sure about the little defect in the end of the pin, it looks
like something that was there when it was made. It will probably be okay,
but why not just replace the pin? But then again that might be easier said
than done. I don't know what kind of cable you have.
Steve
From: Lum Wee Mei [mailto:[log in to unmask]]
Sent: Monday, November 15, 2010 9:29 PM
To: [log in to unmask]
Subject: Any concern for this connector?
Steve,
Can you post the two pictures for me and forward them with my message to our
dear TechNet
During a visual inspection, I noticed the following :
1. There are tiny black spots on the base insulator which cannot be
removed using blower. However, they can be removed by slowly wiping them
with bits of lint wipe. Guess the smooth padding of the insulator caused the
soot (can I called them) to stick on it.
2. One of the pin was found to have a "defect" mark nearing its tip.
As I was not involved in the initial inspection when the harness is made, I
did not know whether these two observations are already present initially.
No one can recall the initial status. The connector has been used for 4
testing with no failure observed. My questions are :
1. What is the likely cause of those tiny "soot" if they are not
present initially?
2. What is the likely cause of the "defect" on that pin if it was not
initially there?
3. If I continue to use this connector, will the "defect" on that pin
cause any potential failure? The condition this connector is going to be
used will be voltage of 60V and current about 8.5Amp.
Thanks & Regards,
~ Wee Mei ~
"Each of us has a mission that only we can fulfil. That mission will not be
found somewhere far away, in doing something special or extraordinary. Even
those people who seem to have led great lives have really only done what
they felt they had to do in order to truly be themselves. We realise our
purpose in life by doing our very best where we are right at this moment, by
thinking about what we can do to improve the lives of those right around
us." - SGI President Daisaku Ikeda
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