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Surge absorber (varistor)

  • Surge absorber (varistor)


Product Description

Metal Oxide Varistor

INTRODUCTION

 

The BDV of “VCR” Varistor is from 18VDC to 1800VDC and they have been recognized by UL & CSA.

 

VCR VARISTORS applications:

* Power Supplies

 

How to Order

Taping Specification

Materials T Thickness

5D 7D 10D 14D 20D 25D Series Specification

Performance Characteristic & Application

How to select

32D-34S Series Specification

MN Series

SMD Series

 

* Ground Fault Interrupters

* Communication Equipments

* Cable TV Systems

* Motor Control Systems

* Microprocessor protections

* AC Operated Smoke Detectors

* Surge Protection in consumer electronics

* Surge Protection in measuring and controller systems

* Surge Protection in industrial electronics

* Surge Protection in electronic home appliances

* Protection against transients induced by lightening on incoming power lines

* Suppressor of transients caused by switching inductive loads:

 transformers, relays, coils.

 

VCR Varistor is a polycrystalline ceramic body consisting of semi-conducting zinc-oxide (ZnO) grains and second phase (Including) Bi2O3, Sb2O3, MnO, C0O, etc) Located at the joints of the grains, it’s called varistor (Variable resistor), surge absorber of TVS (Transient voltage suppressor) because of its electrical resistance varies nonlinearly with the voltage applied to it’s terminals.

 

                                    

                                   Typical Varistor V-I Curve

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