Olin Lathrop
> Because heating isn't the only limiting factor on transistor operation. 
> The
> holes and electrons in the semiconductor material can only move so fast 
> and
> there can only be so many of them.

This would imply that you won't be able to exceed the Imax (you would run 
out of holes and electrons). Alas, the other day I saw 2A put through a 3904 
with an Imax of 200 mA.

My point is, the number of minority carriers doesn't constitute a "natural" 
limit where the current physically cannot go above a certain limit. You're 
not supposed to exceed Imax, but it's possible -- just as it's possible to 
exceed Pmax.

Vitaliy

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