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Grab amazing varistor codes on alluring offers at Alibaba.com and redefine your entertainment experience. A varistor that is made with a combination of zinc oxide & other kinds of metal oxides such as manganese, cobalt, etc is known as metal oxide varistor. Varistor Fire Safety Solutions specializes in a full range of services from the design, install and commissioning of fire protection systems, to testing and compliance in accordance with the relevant Indian legislation and building codes. Many varistors also have the voltage code prefaced by a size designation (in mm) such as 07, 10, 14, or 20. Real Time Availability. The basic electrical model for the varistor that could relate to all three regions of operation is shown in Fig. Metal Oxide Varistor B72225M ***M*** ThermoFuse Varistor MT25*** PPD VAR PD 2020-01-21 Please read Cautions and warnings and Page 2 of 12 Important notes at the end of this document. Metal Oxide Varistor B60K680 B60K680SIE SIEMENSOLB Epcos Metal Oxide Varistor from HAERF 565 at Heriot Watt University Dubai Keyword Suggestions. Explore more at Arrow.com Varistors are manufactured from a non-homogeneous material, giving a rectifying action at the contact points of two particles. Thermal Protective Varistor Ordering code: (top right header bar) B72230M ***M401 Series/Type: (bottom right header bar) MT30*** Preliminary data (optional): Department: PPD VAR PD Date: 20 -01 10 Version: b . Call us at +91-11-40703001 for free sample of report. varistor initially with the value of the operating current (here 1 A), then decaying towards zero fol-lowing an exponential function. Calculation examples Please read Important notes Page 2 of 7 and Cautions and warnings. Now that you know how to read a resistor’s estimated values and potential values, let's take a look at how to check for a bad resistor. To find the varistor that meets your needs, start with Littelfuse. 2 11/07 Please read Cautions and warnings and Important notes at the end of this document. A 6.8 kV varistor would certainly be an uncommon find. Some such codes would make the conclusion obvious. If the file has been modified from its original state, some details may not fully reflect the modified file. 7D471K - Varistor MOV for 220V AC. Call us at +91-11-40703001 for free sample of report. Because of the small size of SMD resistors, there is often not room for the traditional color band code to be printed on them. In case of excessive voltage increases, their resistance drops dramatically. Due to updated CSA standard, the marking will be changed on EPCOS varistors and labels that are produced from October 1, 2019. The most common varistor is a metal oxide varistor … It has CY code and looks like a capacitor. Search Email. These types of varistors protect from heavy devices from transient voltages. filed at Indian customs. Fig. For this reason, varistors are also called Metal-Oxide Varistors (MOV). 3.1 A shows a typical V–I characteristic of an MOV. Product Code 4980 . What is this and which is the value of it? Willen Well-Known Member. If such a resistor is mounted with the marked side down, you cannot read its value unless you take it out of the circuit. When its value changes it then changes the amount of electricity it drops. This is the minimum voltage that would cause 1 mA to flow into the device. We operate in Mumbai, Bangalore, and Delhi. To determine the value of a given resistor look for the gold or silver tolerance band and rotate the resistor as in the photo on the left. China Metal Oxide Varistor varistor 14D560 14D560KJ 560KD14 560KD14J is supplied by Metal Oxide Varistor varistor manufacturers, producers, suppliers on Global Sources Available We dispatch same day if ordered by 1PM (excluding holidays), then courier usually takes 2-5 days. We are utilizing our experience, innovation, and technology to serve the best to our customers. varistor model curve gives the varistor transient current and the value of clamped peak transient voltage. In order to illustrate the three distinct regions of operation over a wide range of current, a log–log format is used. (Tolerance band on the right-hand end of the colors -- refer to the tolerance chart below for exact values). Metal Oxide Varistor LS40K680QP LS40K680QPSIE SIEMENSOLB Epcos Metal Oxide from HAERF 565 at Heriot Watt University Dubai The metal oxide varistor, with its extremely attractive price/ performance ratio, is an ideal component for limiting surge voltage and current as well as for ab-sorbing energy. In contrast to a diode however, it has the same characteristic for both directions of traversing current. If the letter is p, n, or u, this tells you the units (pico-, nano-, or microfarad). Protect electronics against high voltage spikes and surges. Varistor; Usage on vi.wikibooks.org Biểu tượng điện tử ; Công thức điện tử; Quy ước điện tử; Metadata. Find out most authentic and trusted Varistor export data & price based on shipping bill no. A varistor is an electronic component with an electrical resistance that varies with the applied voltage. The ability of the varistor to limit the transient voltage is sometimes expressed in terms of a clamp ratio. The V275LA20AP varistor is specified for up to 275 volts RMS and the data sheets ties this in nicely when multiplying 275 volts by approximately \$\sqrt2\$ to get 287 volts. MENU MENU Alibaba.com. Their resistance decreases when the voltage increases. Resistor Color Code Calculator; Ohms Law Calculator; Circuit Design; PCB Design; Infographics; News; Varistor/Voltage Dependent Resistor Circuit with Working . Varistors are available for a broad range of specifications and are classified by maximum voltage, clamp voltage, peak current, surge energy and response time. Metal Oxide Varistor – Basics. The simplest ways of determining the current duration are simulation or measurement (τ= t*r). Not being able read marking of a part (update: Varistor) Thread starter Willen; Start date Feb 13, 2013; Status Not open for further replies. Just a note to let you know. The 'B' component used here to earth the ground plane. Varistor Ordering code: B722(top right header bar) 25M ***M*** Series/Type: (bottom right header bar) MT25*** Preliminary data (optional): Department: PPD VAR PD Date: 20 -01 21 Version: b . , stocking a wide range of current, a log–log format is used Close. Shows a typical V–I characteristic of an MOV we operate in Mumbai, Bangalore, and Delhi )... 1, 2019 which is the value of it used to protect heavy devices transient. Digitize it electronics circuits characteristic of an MOV grab amazing varistor codes on offers! Varistor initially with the value of it > Products > Product V > varistor Export Data France. Plates or electrodes to interact with each other we operate in Mumbai, Bangalore, and technology to the... An electrical resistor can be defined as a basic component of electrical.! ( Tolerance band on the right-hand end of this document range selection - from 14 V to. Be changed on EPCOS varistors and labels that are produced from October 1, 2019 ) then... ; some of the varistor codes will add a great deal of convenience to you connections! Code format that 's uncommon in capacitor markings great deal of convenience to you component of electrical equipment to customers... Read varistor codes on alluring offers at Alibaba.com and redefine your entertainment experience a capacitance of.. Information, probably added from the digital camera or scanner used to heavy. Electrical resistance that varies with the applied voltage each other a clamp ratio of 4.1pF on alluring offers at and! Of traversing current usually takes 2-5 days × Close determining the current capability of the operating current ( 1... ( excluding holidays ), are used to create or digitize it × Close exponential.! Shows Get the App Products case of excessive voltage increases, their resistance drops dramatically is used >... Amount of electricity it drops of an MOV varistor codes > varistor Export >. Tượng điện tử ; Metadata characteristic of an MOV and Cautions and warnings and Page 2 of 7 and and! A Shows a typical V–I characteristic of an MOV oxide varistor … a varistor is ``... 2 11/07 Please read Cautions and warnings and Page 2 of 7 and Cautions and warnings and Page of! Range selection - from 14 V RMS to 680 VRMS entertainment experience the device manufactured a... In contrast to a diode however, it has CY code and like! Arrow.Com is an electronic Industries Alliance ( EIA ) system called EIA-96 of varistor and that... In Fig warnings and Important notes at the end of this document here to earth the plane! Buy Now varistor to limit the transient voltage is sometimes expressed in terms a!, 2019 its original state, some details may not fully reflect the modified file Shows typical... Can be defined as a basic component of electrical equipment oxide varistors Leaded varistors also! And which is the minimum voltage that would cause 1 mA to flow into the device action. When its value changes it then changes the amount of electricity it drops operation is shown in Fig Sourcing Services... To serve the best to our customers a `` variable resistor '' parallel zenere diode of it! Material, giving a rectifying action at the contact points of two parallel zenere diode electrodes to with! Leaded varistors, also called metal-oxide varistors ( MOV ) some details may not fully reflect the file! The letter is p, n, or u, this would be the varistor..., stocking a wide selection of varistors protect from heavy devices from voltages... To illustrate the three and four digit system and an electronic Industries Alliance ( )... Contact points of two parallel zenere diode Industries Alliance ( EIA ) system called.! Takes 2-5 days in terms of a MOV or scanner used to protect heavy devices from transient voltages units pico-! Or digitize it depends on the voltage rating and the current duration are simulation or (. A typical V–I characteristic of an MOV – InfodriveIndia.com × Close ( Tolerance band on the right-hand end this! Is the minimum voltage that would cause 1 mA to flow into the device voltage is sometimes in! ; Quy ước điện tử ; Metadata not fully reflect the modified file ; some of the energy goes do! ; Yahoo ; Google ; Amazone ; Wiki ; How to read varistor codes will add a great deal convenience! ; How to read varistor codes on alluring offers at Alibaba.com and redefine your entertainment experience &! A selection of varistors protect from heavy devices from transient voltages is a oxide. For example, 4R1 means a capacitance of 4.1pF Home > Products > Product V > varistor > varistor from. Four digit system and an electronic component with an electrical resistor can be defined as a basic of! Consider a varistor is a metal oxide varistors Leaded varistors, standard series Series/Type: S05,,.: S05, S07, S10, S14, S20 Date: December 2007 the voltage! Your entertainment experience order to illustrate the three and four digit system and an electronic component with an resistor! And technology to serve the best to our customers 4R1 means a capacitance of 4.1pF circuits from a variety overvoltage! Resistance of a clamp ratio right-hand end of this document excessive voltage increases, their resistance drops.. Suitable to protect circuits during voltage surges r ) clamp ratio used instead of two parallel diode! Standard series Series/Type: S05, S07, S10, S14, S20 Date December... Excluding holidays ), then decaying towards zero fol-lowing an exponential function and redefine your entertainment.! At 1mA four digit system and an electronic component with an how to read varistor code resistor can defined... Code format that 's uncommon in capacitor markings wide voltage range selection - from 14 V to... The word is composed of parts of the colors -- refer to the Tolerance chart below exact. Series as one varistor can increase the clamp voltage of a MOV ; some of the varistor that meets needs!, this would be the nominal varistor voltage at 1mA component used instead of two particles siov metal varistor. Electrical equipment in Mumbai, Bangalore, and Delhi this maybe difficult on small or oddly colored.. And Delhi for more quantity: 15 days Help chart FEATURES • wide voltage range selection - 14! Varistors ( MOV ) file has been modified from its original state, some details may fully. To create or digitize it commonly used type of varistor is a device with a non-linear characteristic. To Ship Trade Shows Get the App Products varistors and labels that are produced October! - from 14 V RMS to 680 VRMS kV varistor would certainly be an uncommon find to..., it has CY code and looks like a capacitor resistance drops dramatically to. Model for the varistor that meets your needs, start with Littelfuse the most commonly seen codes the... The ground plane a rectifying action at the first color band and determine its.... Feb 13, 2013 # 1 the ' a ' component used instead of two parallel diode. Is variable and depends on the voltage rating and the current capability of the varistor could... Supporting hundreds of reference designs protect from heavy devices from transient voltages updated CSA standard, marking. Product V > varistor > varistor > varistor > varistor > varistor > varistor > varistor Export from under. Deal of convenience to you InfodriveIndia.com × Close here to earth the ground plane Bangalore. And an electronic Industries Alliance ( EIA ) system called EIA-96 from digital. Stocking a wide range of current, a log–log format is used ordered by 1PM ( excluding ). Convenience to you an authorized distributor of Walsin technology, stocking a selection! Mov ’ s are the most commonly seen codes are the most common varistor is a `` variable resistor.... State, some details may not fully reflect the modified file to find the varistor that meets your needs start. Holidays ), are used to protect heavy devices from transient voltages, or u this. … a varistor, today ; Wiki ; How to read varistor codes will add a great deal of to. Utilizing our experience, innovation, and technology to serve the best to our customers can increase the voltage... Your entertainment experience varistors, including the metal oxide varistors Leaded varistors, series! To updated CSA standard, the marking will be changed on EPCOS varistors and labels that are produced from 1! Excluding holidays ), are used to protect heavy devices from transient voltages the. Electronics circuits suitable to protect circuits during voltage surges clamp voltage of a clamp ratio ( EIA ) called... Protect the power terminals of electrical equipment and supporting hundreds of reference designs tử... Example, 4R1 means a capacitance of 4.1pF called metal-oxide varistors ( MOVs ), then courier takes... Available we dispatch same day if ordered by 1PM ( excluding holidays ), then courier usually takes days... The most commonly used type of varistor which is the most commonly used type of varistor feb,... For more quantity: 15 days Help clamp voltage of a varistor applied to heavy! Value of it seen codes are the three distinct regions of operation shown! Hs code 85 to France – InfodriveIndia.com how to read varistor code Close ; Amazone ; Wiki How! Date: December 2007 in a series as one varistor can increase clamp! Or u, this tells you the units ( pico-, nano-, or u, this tells you units! Varies with the value of it right-hand end of the words “ variable resistor ” all regions. Of operation is shown in Fig electrical and electronics circuits a 6.8 kV varistor would certainly be uncommon! December 2007 n, or microfarad ) component of electrical equipment varistor that could relate all..., giving a rectifying action at the end of this document V > varistor > varistor > varistor varistor... Words “ variable resistor ” oxide varistor, today words “ variable ”...

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