Cortem SpA electrical components Germany Cortem SpA model Cortem SpA price

Cortem SpA electrical components are surge absorbers/varistor assemblies. Due to the nonlinear resistance change with respect to voltage, they exhibit symmetry in both directions (positive and negative). They respond to abnormal voltages on the line, absorbing most of the surge/spike energy while suppressing the abnormal voltage to a safe range, thereby improving the safety and stability of the circuit. In the standby state, the surge absorber (varistor) has very high impedance (several megaohms) relative to the protected electronic components and does not affect the characteristics of the original design circuit. However, when an instantaneous