Parameters variation of solid tantalum capacitors used in fuze under high-g shock

A series of experiments were carried out to explore the effects of high-g shock load on the electrical parameters (capacitance and leakage current) of the solid tantalum capacitor. The results show that the capacitance increases with the increase of the shock load and the leakage current increases exponentially with the rising shock load. After the shock load, the electrical parameters return to their initial values as demonstrated. The variations of the tantalum capacitors' electrical parameters were explained by a combination of three mechanisms: the shock-induced elastic deformation of the tantalum capacitor that leads to the capacitance's increase, the shock-induced micro-defects and shock-induced rise of the electron traps concentration that leads to the leakage currents' increase.