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.
Based on 3 ratings:
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.
These barrel jacks work well for connecting a solar panel to a particle photon battery shield. I have never had one break.
I've noticed that over the course of a few years the plastic used for both the strain relief and the barrel weakens and becomes very brittle.
First you'll find the strain relief to just crumble but maybe that's not such a big deal; you can put some tape or glue...
Next, you'll find yourself plugging it in or out and then the whole outer jacket just crumbles.
I'm not buying more of these from SparkFun as long as they carry this particular model.
Sorry to hear you had trouble with this part. In the past we had some quality issues with these, but that has been resolved for a while now. I double checked our stock and the parts we have at the moment have much higher quality plastic than the old ones. Feel free to reach out to our tech support department if you have any questions.