Ukhuseleko lwe-overvoltage olunezixhobo ezahlukeneyo ezine-varistors kuyilo lwesiphelo
Iivaristor ze-metal-oxide zingasetyenziswa kuyilo lwesiphelo. Zivunyiwe kwi-voltage yokusebenza ye-sine-wave-form ephezulu, eprintwa kwi-component. Naziphi na ii-voltage ezingaphezulu kune-maxi- evumelekileyo
Ii-mum zikhutshwa ngokukhuselekileyo ngaphakathi kwe-25 ns. Ii-Varistors zisetyenziselwa amandla aphakathi ukuya kwaphezulu.