I see the logic and have seen this application in use but what a pain in the
butt during assembly, with the looping around you lose most processes except
hand soldering and depending on how many wires you have it could add a lot
of cost to each assembly.
Kat
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Tan Geok Ang
Sent: Wednesday, June 11, 2008 7:47 PM
To: [log in to unmask]
Subject: Re: [TN] Is there a good discrete wire support still made
Redesign the PCB so that the cable is inserted through the Top to Bottom (or
vice visa) side of the PCB and loop/ insert the stripped end into PTH holes
(from bottom to top)and solder them accordingly. Then stake down the cables
onto the PCB accordingly. Yes, there are two rows/columns of holes [one
non-PTH (larger) and the other PTH (normal design)].
Hope this help.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
Sent: Tuesday, 10 June 2008 11:33 PM
To: [log in to unmask]
Subject: Re: [TN] Is there a good discrete wire support still made
Contact Autosplice. They have a similar pin that crimps on the ends of the
wires and is intended for through-hole soldering.
Another product they make is an Autosocket
http://www.autosplice.com/catalog/Page_90-91.PDF that gets inserted into
the through-hole in the board either by a manual process or a machine, and
then you add the tinned wires and pass electrical testing, and then you can
solder the wires into the socket once you know it is wired correctly.
They make a number of different crimp or solder pins for wire termination to
the PWB. They may have one that works for you.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Temkin, Gregg
Sent: Tuesday, June 10, 2008 9:33 AM
To: [log in to unmask]
Subject: [TN] Is there a good discrete wire support still made
Many of the electrical paths in our products are power circuits connected
with 12, 16, 18, 20 AWG wire. Wires are sometimes soldered directly to thru
holes on our PWBs. This produces a connection using the least amount of
board space, but the wires are subject to handling damage, with bird caging
evident if the wires are flexed too often near the solder joint. Finding
inexpensive, small pin count, high current connectors that incorporate
machined pin contacts with 50u Au (aerospace product with some flight
critical applications) and don't use up board area is difficult.
Before Burndy was incorporated into FCI, they had a product that could be
used to position and support wires entering into a PC board. I'll call it a
Wire Support. It looked like a connector body without contacts installed.
It had a one way barbed feature inside each of its "contact" cavities so
that you would slide a wire down into the body, it would be held in place by
the barbs, and the stripped end of the wire would pass thru into the PWB
hole, ready for soldering. It was available in different position
capacities, I think from 1 to 10 wires in a row and it snapped into the PWB
with some peg features built into the molding. If someone out there has an
old Burndy catalog you can probably find it, I think it was towards the back
pages.
This item solved a lot of problems, in that it is cheap, took up the least
amount of additional board area, pre-positioned the wire for wave soldering
and provided a means of strain relief to protect that delicate area right
above the solder joint. I've contacted FCI and they say the product has
long since been discontinued without replacement.
Does anyone know of a similar device or if some other company may have
picked up production where Burndy left off. Your help is appreciated.
Thanks,
Gregg
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