Triggerbare Funkenstrecke, Schaltkreis mit triggerbarer Funkenstrecke und Verfahren zur Herstellung einer triggerbaren Funkenstrecke

Es wird ein triggerbare Funkenstrecke mit erhöhter Lebensdauer angegeben. Die Funkenstrecke hat eine Gegenelektrode mit zwei Phasen. Material der zweiten Phase hat eine niedrigere Elektronen-Austrittsenergie als Material der ersten Phase. A triggerable spark gap, a switching circuit and a method for manufacturing a triggerable spark gap are disclosed. In an embodiment, a triggerable spark gap includes a trigger electrode, an adjacent electrode at the trigger electrode, a counter electrode and a gap between the counter electrode and the adjacent electrode, wherein a distance between the trigger electrode and the adjacent electrode is less than a distance between the trigger electrode and the counter electrode, wherein the distance between the trigger electrode and the counter electrode is less than a distance between the adjacent electrode and the counter electrode, wherein the counter electrode and/or the adjacent electrode includes a first phase including a first material and a second phase including a second material, and wherein the second material has a lower electron work function than the first material.