Re: Can a 1W resistor handle 50W for 7msec?

Watson A.Name - Watt Sun, Dark Remover <[EMAIL PROTECTED]> wrote:
> But what happens if the relay fails to close in 7 mSec?  OOPS!

True, but -- while relays aren't exactly that horribly reliable,
long-term -- for transistor-driver applications it's not at all surprising
to see components used that would fry if left on full-time.  For instance,
you often see drive transistors for the ringers of cell phones that would be
operating above their rated specs if they were turned 'on' 100% of the time,
yet such a design is still practical for the sake of cost savings and
miniaturization in a that type of product.

---Joel Kolstad