A self-destruct is a mechanism that can cause an object to destroy itself or render itself inoperable after a predefined set of circumstances has occurred.
A Russian anti-personnel land mine POM-3 (Russian: Противопехотная Осколочная Мина, lit. 'Infantry shrapnel mine') with a self-deactivation mechanism that disables the mine upon expiration of battery charge.
A land mine, or landmine, is an explosive weapon concealed under or camouflaged on the ground, and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it.
Examples of anti-personnel mines. Center: Valmara 69 (a bounding mine); right: VS-50
Swedish FFV 028 anti-tank-mines of the German Bundeswehr (inert versions)
Roman caltrop
Illustration of the "self-tripped trespass land mine" from the Huolongjing