What is the difference Varistors compared to other transient suppressors

Another method for suppressing voltage spikes is the STV9556A transient voltage suppression diode . Although diodes do not have as much capacity to conduct large surges as MOVs, diodes are not degraded by smaller surges and can be implemented with a lower "clamping voltage". MOVs degrade from repeated exposure to surges and generally STRF6268 have a higher "clamping voltage" so that leakage does not degrade the MOV. Both types are available over a wide range of voltages. MOVs tend to be more suitable for higher voltages, because they can conduct the higher associated energies at less cost. Another type of transient an17807 suppressor is the gas tube suppressor. This is a type of spark gap that may use air or an inert gas mixture and often, a small amount of radioactive material such as Ni-63, to provide a more consistent 2SK1530 breakdown voltage and reduce response time. Unfortunately, these devices may have higher breakdown voltages and longer response times than varistors. However, they can handle STR-E1414 significantly higher fault currents and withstand multiple high-voltage hits (for example, from lightning) without significant degradation.