Amperage ratings on DC power supplies

1. Oct 11, 2008

KLoux

Hello,

I'm hoping that by asking this question I can save myself a couple of bucks. I have a DC power supply for a router that is rated for 1.0 A. My router stopped working, and I traced the problem to the power supply. It's a 12 V supply putting out 0.1 V. I have other 12 V supplies, but the closet I can get on the amperage is 1.25 A. My thinking is that the router probably won't draw more than 1.0 A anyway, so a 1.25 A power supply would still be OK. Is this safe? Is there anything else that I'm not considering (what ifs?) What I don't want to do is fry the router and have to spend $70 instead of ~$10 for a new power supply.

Thanks,

Kerry

2. Oct 11, 2008

dlgoff

What is your router specs? If it draws 1 amp then that is probably why the power supply got fried. With a 1.25 amp rateing, you're good to go. With the extra rateing, the supply will run cooler.

3. Oct 11, 2008

KLoux

It was the power supply that came with the router, and the router has 12V, 1.0A printed on it, too.

Thanks for the help, I'll give it a shot!

-Kerry

4. Oct 13, 2008

Chandra214

did you measure the supply unconnected to the router?