News

Industrial-News

Company-News

Information Center

Contact Us

Kestar Electronic Co., Ltd.
                      --China metal oxide varistor manufacturer
Add: No.2, Huangsheng Road, Pingzhou Industrial Zone, Nanhai District, Foshan City, Guangdong Province, China.
TEL: (86) 0757-81285180
FAX: (86) 0757-81285189
E-mail: oversea-md@kestar.com.cn
WebSite: http://www.metaloxidevaristor.cn

Varistor

A varistor is an electronic component with a significant nonlinear current–voltage characteristic. The name is a portmanteau of variable resistor. Varistors are often used to protect circuits against excessive transient voltages by incorporating them into the circuit in such a way that, when triggered, they will shunt the current created by the high voltage away from the sensitive components. A varistor is also known as Voltage Dependent Resistor or VDR. A varistor’s function is to conduct significantly increased current when voltage is excessive.