What is a varistor and its function 3

The varistor quickly transitions to a low resistance state, directing excess current to the ground or flowing back to the power supply to protect electronic devices connected at both ends.diode

Due to their importance in various electronic devices, varistors need to have the following characteristics in their design and manufacturing: high reliability, fast response time, high energy absorption capacity, and repeated breakdown capability. Their size and shape can be customized for different applications, ranging from small surface mount devices (SMD) to large industrial disc-shaped varistors.diode

When selecting a varistor, it is necessary to consider parameters such as its rated voltage, energy absorption capacity, maximum sustained voltage, peak pulse current, and response time. Proper selection and installation of varistors are crucial for ensuring the stability and long-term reliability of electronic devices.diode