I know I saw a page or mail somewhere here about a device that was some
kind of solid state, thermal fuse, that would reset when current was
removed, but I can not recall what it is called...  (Or find the page.)

I want a simple circuit breaker that I can use in a typical 5V pic
circuit.  What is the proper size for a typical "hello world" circuit,
e.g. blink an LED.  (Power from 7805 regulated power via typical 12V
wall wart.)

Does anybody use these?  Find them at Digikey, or Mouser, or etc?

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