List,

I have an application using a audio piezo-transducer and it is rated at 
5V; we want to run it at 9V; because it is louder.

I am wondering what the failure mode would be for a device like this.

In the application, it runs for short duration (300 mS) and 
infrequently. The average maximum cycle time is probably something 
roughly like every 5 minutes (or more) when in use, but it can repeat as 
frequently as ~1 second intervals as part of a "cycle." But each "cycle" 
consists of only two beeps.

I have run it at 9V as a test, but am trying to get a handle on what 
could be expected longevity-wise at this elevated voltage.

I have contacted the factory, but have received no response so far.

I realize it's out of spec.    :-)

Is it power dissipation? Is it actual voltage?

-- 
Mark
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