My dlink power supply broke, I found a similar one on old boxes. Is it going to damage my router if used (specs and pic inside)?

Question

I have an old dlink wi-fi router to connect old 802.11g devices at home. It's power supply just fried after a storm.

Buying a new power supply is almost the same price as a used router like mine, and I found a power supply at home from an older router (not even wi-fi) I was planning to use it, but I don't have that much experience with eletronics... Can someone tell me if they are compatible?

FRIED POWER SUPPLY

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ALTERNATIVE POWER SUPPLY

Answer 1

It looks like the Alternative Power supply would be compatible.

It has a higher current limit than the old one -- which is good.

There's no indication of the polarity of the output for the old supply, but the alternative one (with the +ve connection in the centre) looks like the standard, so I think you're OK.

But beware that if the old power supply was fried in a storm, some of the surge may have appeared on its output and the router may have been damaged too.

You'll have to take a chance and try it.

Answer 2

Yes, as long as the connector fits and the polarity is correct (center positive in the case of the new supply), you should be able to use it.

The most important thing are the voltages, which match. The second most important thing is the current (amps), which is actually greater. The current correlates to the ability to do work. If it were less, it would not be able to deliver the necessary voltage (without problems i.e. ac leaking into the dc), which would cause problems in the router, but since it is greater, that is not a problem.

It is advisable to look on the router to see if it needs center positive or center negative.