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Topic: Can I use this power supply? (Read 573 times) previous topic - next topic


I am working on a new project and all of the components will require quite a bit of current

I am using the Arduino Mega.
and I am wanting to use a 12v 6A DC power supply.

Is this safe to use with the Mega or will something blow up?

Thank you.


The PSU is ok, but the connector is wrong - you need 5.5mm OD x 2.1mm ID.    It's overkill actually - 2A would be plenty since you don't drive high current devices directly with the Arduino anyway.
Don't breath in the magic smoke!


I'm not worried about the connector size. I won't be directly connecting this PSU to the arduino. Instead I will connect the PSU to a terminal block where I will power the arduino thru Vin as well as powering other electronics simultaneously.

I just needed to know if using this PSU with the Mega would fry anything, because the Mega I am using is for my engr dept and I don't want to replace it!


The regulator is tolerant of 12v, but approaching 14.5v or more will overheat the regulator.  Measure the output voltage at the PSU to see that it is close to 12v - most are 13 to 14v and I have some that are 16.5v (on marked 12v PSUs).
Don't breath in the magic smoke!


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