Tell me more ×
Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. It's 100% free, no registration required.
up vote 1 down vote favorite

Possible Duplicate:
Choosing power supply, how to get the voltage and current ratings?

I need to replace a 9v AC 1000mA adapter for a 9v AC 1000mA device but all I've been able to find is a 9v AC 2000mA adapter.

Will this work or will it fry my device?

share|improve this question

marked as duplicate by Dave Tweed, Leon Heller, Olin Lathrop, stevenvh, clabacchio♦ Oct 23 '12 at 12:36

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

1 Answer

up vote 1 down vote accepted

Yes, that's fine.
The voltage matches (important point #1), and the adapter can deliver 1000 mA or more (important point #2).

The current rating for a power adapter says how much it can provide; how much it actually does provide is up to the load.
In other words, any adapter that is 9 V and 1000+ mA should work just fine.

share|improve this answer
thank you so much! – hikizume Oct 23 '12 at 10:29
Using an adapter rated for a higher current is not always safe! The adapter output voltage may be only be well regulated in the current range for which it was designed, and the open-circuit voltage can be much higher than the rating. – Ben Voigt Oct 23 '12 at 14:16

Not the answer you're looking for? Browse other questions tagged or ask your own question.