1. 
   DIAC
   [disambiguation] DIAC is a four-letter acronym that may stand for: ...
   Found op http://en.wikipedia.org/wiki/DIAC_(disambiguation)
   
   
2. 
   DIAC
   The DIAC, or `diode for alternating current`, is a diode that conducts current only after its breakover voltage has been reached momentarily. When this occurs, diode enters the region of negative dynamic resistance, leading to a decrease in the voltage drop across the diode and, usually, a sharp in...
   Found op http://en.wikipedia.org/wiki/DIAC
   
   
3. 
   DIAC
   Diode AC switch
   Found op http://www.nuhorizons.com/glossary/acronyms.asp
   
   

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