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Varistor

A varistor (a.k.a. voltage-dependent resistor (VDR)) is a surge protecting electronic component with an electrical resistance that varies with the applied voltage. It has a nonlinear, non-ohmic current–voltage characteristic that is similar to that of a diode. Unlike a diode however, it has the same characteristic for both directions of traversing…

History, Applications & Measurement

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Varistor at a glance

The strongest research directions include History and Composition, properties, and operation of the metal-oxide varistor. Use the connected concepts below as starting points, not as a keyword checklist.

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Overview

History

Composition, properties, and operation of the metal-oxide varistor

Applications

Hazards

Limitations

Comparison to other transient suppressors

Multi-layer varistor

Advanced semantic analysis

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How this topic connects Entity context

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Varistor

Top relations

related to Comparison to other transient suppressors · 10
Varistor → Although, Another, Both, However, MOV, MOVs, Ni-63, This, TVS, Unfortunately
related to Hazards · 10
Varistor → Application, Association, Examples, However, MOV, NFPA, The National Fire Protection, Under, Varistors, While
related to Limitations · 7
Varistor → AC, In, MOV, Other, Susceptibility, TVSS, UPS
related to Electrical characteristics · 6
Varistor → Absolute Maximum Ratings, Follow-through, MOVs, The, This, Varistors
related to history · 6
Varistor → Cu2O, Geiger, Grondahl, It, The, This
related to Composition, properties, and operation of the metal-oxide varistor · 5
Varistor → MOV, The, This, When, ZnO
related to External links · 5
Varistor → Archived, Littelfuse, MOVs Archived, The ABCs, Wayback Machine
has application · 4
Varistor → Low-cost, MOV, MOVs, Some
related to Capacitance · 4
Varistor → PCB-mount, Smaller, These, Typical
related to Multi-layer varistor · 3
Varistor → MLV, Multi-layer, They

Important terminology Word statistics

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Important terminology

voltage current mov varistors type protection transient surge diode energy may device failure movs high used response resistance time metal-oxide

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
Varistoris aportmanteau of varying resistor0.90text
Varistoris ametal-oxide varistor0.90text
8/20 microseconds or 10/1000 microsecondsinstance ofEnergy rating is often defined using standardized transients0.80text
where 8 microseconds is the transient's front timeinstance ofEnergy rating is often defined using standardized transients0.80text
20 microseconds is the time to half value.CapacitanceTypical capacitance for consumer-sizedinstance ofEnergy rating is often defined using standardized transients0.80text
the inductance of component leadsinstance ofbut will be slowed down by other factors0.80text
the mounting methodinstance ofbut will be slowed down by other factors0.80text
20 microseconds is the time to half valueinstance ofEnergy rating is often defined using standardized transients0.80text
a UPSinstance ofeither inside the equipment itself or externally by means0.80text
a voltage regulator or a surge protector with built-in overvoltage protectioninstance ofeither inside the equipment itself or externally by means0.80text
Ni-63instance ofa small amount of radioactive material0.80text
to provide a more consistent breakdown voltageinstance ofa small amount of radioactive material0.80text

Related concept clusters Concept neighborhoods

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    Connections between topic areas Semantic bridges

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    Map overview Semantic statistics

    Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

    Varistor

    Nodes58
    Edges57
    Triples76
    Avg. degree1.97
    Density0.034483
    Components1
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