Electronic Circuit Protection:

​​   
current-limiting
​​     ​
​   voltage-limiting   
   


Regenerative Avalanche Failure in Quantum Tunneling Varistor
(1 microsecond between images)​
Conductive Polymer Current-Limiting Device:
On Activation (above)​​
CP Properties (left)​
1 microsecond after onset of EMP
2 microseconds after EMP
3 microseconds after EMP