Solder Deans Ultra Connectors
An eAsier wAy to mAke sound joints Tex T & Pho Tos By JERRY SMITH
Soldering is the fastest and most reliable
way to join metal, and a soldered wire
joint is both mechanically stable and
electrically efficient. Available in different
diameters, the standard solder we use
for electrical RC wiring is 60/40 rosin
core solder. It consists of 60 percent tin
and 40 percent lead, with the rosin inside
the hollow body of the solder. Koster
solder is the most popular, but most
building and home-improvement stores
carry other brands. The important thing
is to use the proper 60/40 type.
Solder is not capable of taking a lot
of stress or movement, so it is a good
idea to use shrink tubing over the joint
to help support the joint and to insulate
it from short circuits. I ran into a problem
soldering large-gauge stranded wire to
the lugs on a Deans Ultra Connector. The
lugs are close together, and I just wasn’t
satisfied with the outcome. There was
little mechanical connection between
the wire and connector’s lug. Instead
of trying to tin and solder the ends of
the wires to the lugs, I found a better
solution: using the EZ Soldering Coupler
for the Deans Ultra Connector, available
from Maxx Products.
Here are the Deans Ultra Connectors and the EZ Soldering Couplers.
The couplers are made to fit the lugs on the Deans connectors. They
are a snug fit but will slip into place without having to spread the
coupler open—don’t try, as you can break them.
To make a proper solder joint, you
need four things: an adequate heat
source, a clean metal surface, a
suitable grade of solder, and flux or
rosin. Rosin core solder with flux in
the core of the solder is suitable for
most electrical applications, and the
use of additional flux is not required.
I bought the soldering station shown
here from Hakko ( hakko.com), and I
highly recommend it. Before you try
to make a solder joint, ensure that
the surfaces are perfectly clean; I
clean the lugs with alcohol.
Generally speaking, most newcomers to our hobby don’t really know how to solder. This isn’t that surprising because most of today’s electric-power
systems come plug-and-play, and soldering isn’t as required
as it once was. There are, however, some occasions when
soldering is needed, as when you’re dealing with new battery
packs that don’t come with the connectors installed.