Like all diodes, Shockley diodes are unidirectional devices; that is, these only conduct current in one direction. If bidirectional (AC) operation is desired, two Shockley diodes may be joined in parallel facing different directions to form a new kind of thyristor, the DIAC: (Figure below)
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A DIAC operated with a DC voltage across it behaves exactly...
The DIAC
![[IMG]](http://www.electronicspoint.com/tutorialimages/Semi/03204.png)
The DIAC
A DIAC operated with a DC voltage across it behaves exactly...
The DIAC