varistor 2-凯时尊龙官网

characteristic:

① the varistor voltage range is wide, with a single chip ranging from several volts to thousands of volts

② low limit voltage (residual voltage)

③ fast response speed (ns level)

④ volt ampere characteristics of positive and negative symmetry

⑤ no relay

⑥ many varieties and specifications (5d, 7d, 10d, 14d, 20d)

⑦ passed the safety certification standards of cqc, vde and ul

application field:

① over voltage protection of transistors, ics, thyristor and semiconductor switching elements, as well as various electronic and electrical equipment

② surge absorption and overvoltage protection of household appliances

③ surge absorption of industrial electrical appliances

④ electrostatic discharge and noise signal elimination

⑤ surge absorption of relay and solenoid valve

⑥ overvoltage protection of leakage switch

⑦ lightning protection and overvoltage protection of telephone program-controlled exchange and communication equipment