Everything about Varistor
Electronic component
A varistor 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 current. Traditionally, varistors were constructed by connecting two rectifiers, such as the copper-oxide or germanium-oxide rectifier in antiparallel configuration. At low voltage the varistor has a high electrical resistance which decreases as the voltage is raised. Modern varistors are primarily based on sintered ceramic metal-oxide materials which exhibit directional behavior only on a microscopic scale. This type is commonly known as the metal-oxide varistor (MOV). Wikipedia →
🧭 Start here: a 6-step reading path
- Read the overview: VaristorA 5-minute orientation
- Skim a recent paper: Simultaneously improving the electrical properties and long-term stability of ZnO varistor ceramics by reversely manipulating intrinsic point defectsInfluential work since 2022
- Pick up a classic book: Metal Oxide VaristorsThe most-reprinted book on the subject
- Read the landmark paper: Varistor CeramicsCited 1,159 times
- Go sideways: Surge protectorA closely related topic
- Go sideways: SnubberA closely related topic
📖 Definitions
Noun An electronic component having a variable resistance; used to protect circuits against power surges.
🏆 Landmark papers (most cited)
Varistor Ceramics
A grain-boundary defect model for instability/stability of a ZnO varistor
A new SnO2-based varistor system
Characterization of individual interfacial barriers in a ZnO varistor material
Synthesis of ZnO nanoparticles for varistor application using Zn-substituted aerosol ot microemulsion
Microemulsion mediated synthesis of zinc-oxide nanoparticles for varistor studies
Key role of oxygen at zinc oxide varistor grain boundaries
The microstructural location of the intergranular metal-oxide phase in a zinc oxide varistor
🆕 Influential since 2022
Simultaneously improving the electrical properties and long-term stability of ZnO varistor ceramics by reversely manipulating intrinsic point defects
Influence of Ca-doping on the nonlinear properties of novel ZnO-Cr2O3-based varistor ceramics
Influence of Cr2O3 doping on the electrical characteristics of novel ZnO-Cr2O3-based varistor ceramics
Power loss transition of stable ZnO varistor ceramics: Role of oxygen adsorption on the stability of interface states at the grain boundary
Effect of ZnBi2O4 and Bi2O3 addition on the densification, microstructure, and varistor properties of ZnO varistors
📚 Books worth reading
- 📕Metal Oxide VaristorsJinliang He, Jun Hu · 2015
- 📕ABC's of voltage-dependent resistorsRufus P. Turner · 1970
- 📕Advances in varistor technologyInternational Varistor Conference (2nd 1988 Schenectady, N.Y.) · 1989
- 📕Nihon ga unda sekaiteki hatsumei sanka aen barisuta =Michio Matsuoka · 2009
- 📕Deep-level impedance spectroscopy of electronic materialsAndrew Norbert Jansen · 1992
- 📕The Market for transient voltage suppressor componentsRobert Brandt, Maurice Klapfish · 1990
- 📕Interfacial microstructure in ZnO varistor materialsEva Olsson · 1988
- 📕Yang hua xin ya min tao ci zhi zao ji ying yongZhenlin Wang · 2009
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
🔗 Related topics
- Surge protector A surge protector, spike suppressor, surge suppressor, surge diverter, surge protection device (SPD), transient voltage suppressor (TVS), or transient…
- Snubber A snubber is a device used to suppress ("snub") a phenomenon such as voltage transients in electrical systems, pressure transients in fluid systems (caused…
- Transient-voltage-suppression diode A transient-voltage-suppression (TVS) diode, also transil, transorb or thyrector, is an electronic component used to protect electronics from voltage spikes…
- DIAC The DIAC (diode for alternating current) is a diode that conducts electrical current only after its breakover voltage, VBO, has been reached momentarily…
- Electronic component An electronic component is any basic discrete electronic device or physical entity part of an electronic system used to affect electrons or their associated…
- Failure of electronic components Electronic components have a wide range of failure modes. These can be classified in various ways, such as by time or cause. Failures can be caused by…
- Diode A diode is a two-terminal electronic component that conducts electric current primarily in one direction (asymmetric conductance). It has low (ideally…
- Avalanche diode In electronics, an avalanche diode is a diode (made from silicon or other semiconductor) that is designed to experience avalanche breakdown at a specified…