Wmr Zinc Oxide Varistor

Zinc Oxide Varistor:

Zinc oxide varistor is a voltage dependent resistor with symmetrical voltage-current characteristics that is designed to protect all kinds of electronics that is designed to protect all kinds of electronic devices or elements from switching and induced lightening surge. It's non linear exponent characteristic with broad using range and mass production is gradually being used by various level of electric engineering.

Features:
1. Fast response time
2. Low leakage current
3. Excellent vpltage ratio.
4. Wide voltage & energy ratio.
5 Low standby power and no follow on current
6. High performance in surge current handing capability
7. High performance in clamping voltage characteristics.

Applications:
1. IC, diode, transistor, thyristor, triac, and other semiconductor protection.
2. Suppression of main borne transients in consumer electronics and industrial electronics.
3. Suppression of internally generated spikes in electronicss circuit.
4. Surget protection in communication, measuring and controller electronics.
5. Surge protection in electronic home appliances and gas and petrolem applicances.
6. Relay and electromagnetic valve surge absorpion.

The varistor's rest state has a high impedance (serval megaohms) in relation to the component to be protected and does not change the characteristics of the electric circuit. In the presence of transient voltage (over the breakdown voltage of varistor), the varistor then has a low impedance (a few ohms) and short circuits, i. E. The assembly E to be protected.