12 volt Mains adaptor - query re amps

Apr 17, 2006 5 Replies

The mains adaptor for my router (a Cisco Wireless-G WAG54G) has just died a death - the router's power requirements are 12volts at 1amp. I have a spare 12volt mains adaptor but it's only rated at 500mA. I've tried it and all seems well, but am I likely to experience problems using it with the 1amp router?



If so, would the worst thing to happen be the failure of the mains adaptor?



Just to be on the safe side, should I obtain one rated at 1 amp?


Thanks


does it still produce 12volts. what AC or DC??

More than likely what\'ll happen, long term, is that you\'ll overheat the transformer in the adaptor and it\'ll fail prematurely. Also, you could exceed the ripple current spec of the reservoir capacitor, causing it to fail prematurery.

Thanks for the replies - I'll buy one rated at 1A then. :)

BTW, it's 12 volts DC.

Yes - that's the proper way to do it. You say you've tried the 500 mA adapter and it "seems" well, but I'd check how hot it's getting - if you only run the router at 50% duty cycle or less, you might get away with it, at least until the adapter melts. ;-)

Good Luck! Rich

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