I am making a pcb that I will have printed and will receive power from this power supply.
I have to connect its output (two wires, gnd and +12V) to a connector mounted on the PCB... but I have to choose the type of connector and, therefore, the type of wire.
I think of these two:



1) Will the wires heat up? Are the wires too thin? Is the connector appropriate?
2) What is the 2.1A indicated in the data set of the power supply? Perhaps they are the maximum current that can be delivered/supported by the power supply?
If yes, then do the green wire in the photo hold up?

This is the first PCB I'm making, so advise me on a better solution than this.
Thanks!

 

What is the current consumption of the PCB?

Yes the 2.1A would be the maximum current the PS can deliver.

 

What is the current consumption of the PCB?

Yes the 2.1A would be the maximum current the PS can deliver.

200mA .. maybe 300mA

 

200mA .. maybe 300mA

Then the 2.54mm pin header you showed is perfectly fine. I would use a two pin connector to attach to it, though, rather than individual one pin versions. You can get premade pigtails from lots of places.

 

My choice would be a screw terminal block.

 

My choice would be a screw terminal block.

I also prefer those, they are stackable and also come in singles to make odd number.

Or I use this.

 

What is the current consumption of the PCB?

Yes the 2.1A would be the maximum current the PS can deliver.

If I buy a stack of 10, I can detach them to use them individually, right?
Maybe I only need one.

 

My choice would be a screw terminal block.

View attachment 293171

What's the differences compared to mine in the main post?
This occupies more space

 

What's the differences compared to mine in the main post?
This occupies more space

Robust, secure, high current capability, no special connection requirements.

 

The nice thing about the barrel connector (#6) , it is 'instant' and connection error cannot occur.
Especially where the connection is repeatedly on/off