Description: This barrel jack plug is great for adding a common connector to the end of our wires. This jack is compatible with 5.5mm barrel jacks that have a 2.1mm center pole diameter. The outer shell unscrews to reveal solder terminals and a crimp strain relief. The outer shell has strain relief as well.
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Bought a few of these, and started soldering for an outdoor project. First thing I noticed is that the outside plastic protector thing broke as soon as I tried to screw it on. Well, guess I don’t need that? After a solid soldering job, and plugging in, nothing turned on. I found out that the center pin (+/-?) that you solder to has a very very very weak connection to the actual center plug. Every time I wiggled it, the connection was made again, so I ended up having to just glob a ton of solder in the center to make the connection work. If it were just two pieces of metal attached somehow, this would be nice, but…I don’t know.