15 Sep
2014
15 Sep
'14
1:08 p.m.
On Sat, 13 Sep 2014, Noel Chiappa wrote:
PS: I just realized that perhaps the spade lug
connector was
under-specified, and that's why it was getting too hot. So perhaps
another alternative is like the first (clean and put back together),
only this time, solder the two together; my intuition says that would
increase the amount of amps it could carry - or am I totally confused
there?
I don't think the damage was caused by an undersized terminal, but rather
an overcurrent condition and/or a bad connection. I would just stick to
using a .250 series disconnect terminal vs trying to hard wire or solder
something directly to the pc board.
Here is Tyco/AMP's catalog for these:
http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&a…
See pp. 44-45, 250 series printed circuit board tabs
and p. 100, .250 series, 12-10 (yellow)
They have a lot of different .250 tab types, so if you opt to replace it,
you'll have to match one up with the tab on your board.
The terminals in the chart on page 100 are nylon insulated instead of
vinyl, but the original in your power supply might have been a different
brand and/or may really be nylon and not vinyl. It is just hard to tell
from a photo.
A phosphor bronze terminal will have a higher gripping force and probably
be more reliable than a brass terminal, but phosphor bronze terminals are
less widely stocked and are much more expensive than brass.
According to the catalog, AMP does have a multi-function crimper for field
installation of these terminals, P/N 59824-1. If you can find one cheaply
enough secondhand, that would be one worth considering.