S20k230 varistor 230vrms 20mm radial epcos inc datasheet. Typical applications include motor control, telecom, automotive. Varistor 150v rms 20mm radial online from elcodis, view and download s20k150 pdf datasheet, tvs varistors, movs specifications. S20k230 varistor 230vrms 20mm radial epcos inc datasheet pdf. Since a varistors task to clamp excess voltage down to ground, it is put in parallel to electronic circuitry which we want to protect. A test current of 1 ma dc is typically used to determine.
We are a client oriented organization which targets to provide qualitative. Mov20dxxxk series metal oxide varistor rohs directive 2015863, mar 31, 2015 and annex. K460, s10s14 k11 k680, s20 k11 k1100 iec delivery mode bulk standard, taped versions on reel or in ammo pack upon request. A resistor that changes value with applied voltage. Cqc s0507 k11 k460, s10s14 k11 k680, s20 k11 k iec delivery mode bulk standard, taped versions on reel or in ammo pack upon request. Based in mumbai, we orbit electronics since its inception from 2011 are doing exceedingly well in providing our clients with various components. Epcos tdk s20k varistors are available at mouser electronics.
A varistor may also be called a vdr voltage dependent resistor, or mov metal oxide varistor. Nvd metal oxide varistor disc type koa speer electronics, inc. Offer high energy absorption capability, low leakage current, and hightemperature versions. A surge in excess of the specified withstanding surge current may cause short circuits or package rupture with expulsion of material. Specifications are subject to change without notice. Varistors catalog number system g n r 2 0 d 2 0 1 k. These statements are based on our knowledge of typical requirements that are often placed on our products. Leaded varistors, s20k300 datasheet, s20k300 circuit, s20k300 data sheet. Buy varistor 150vac, 200vdc, 240v, 8000a, tht, s20k150 epcos for 0. The model 2400 sends overall passfail status and end of test. Bulk on tape and reel on tape in ammopack fanfold the basic ordering code for each option is given in tables titled varistors on tape on reel, varistors on tape in ammopack and varistors in bulk. Please read important notes on page 2 and cautions and warnings on page 97. S20k275 datasheet, s20k275 datasheets, s20k275 pdf, s20k275 circuit. These ul recognized varistors require very little mounting space, and are.
Leakage current i l current passing through the varistor at rated dc voltage at 25c or any other specified temperature. This component is used to protect electrical devices from high transient voltages. The energy of the incoming surge is partially conducted and partially absorbed, protecting the circuit. Nominal varistor voltage test, dc standby current test, and nonlinear exponent test. Connecting varistor and surge arrester in series electrical. Thinking tvr varistor the first brand of mov shipments. General technical data climatic category operating temperature storage temperature electric strength insulation resistance response time to iec 600681. No breakdown leaded varistors b722 superiormp, s20. Clamping voltage v c maximum peak voltage developed across the varistor when passing an 820 s class current pulse. They are bilateral and symmetrical vi characteristics. Since the varistor is not polarity sensitive, it is suitable for protection in both ac and dc voltages. The basic varistor consists of a layer of oxide on a metal sheet, typically zinc.
Some parts of this publication contain statements about the suitability of our products for certain areas of application. The varistor model for pspice is, aid of the pspice model editor. The dnr provides a highly reliable and economic way to protect against repeated high voltage transient and surges such as those produced by induced lightning surges, switching surges and noise spike. A varistorvoltage dependent resistor vdr is a component which has a voltage current characteristics that is very much similar to that of a diode.
Metal oxide varistors definition of varistor terms rated rms voltage, rated dc voltage the maximum designated values of power system voltage that may be applied continuously between the terminals of a device varistor voltage test characteristic that is used to classify varistors by type. Siov, leaded varistors, standard series, s05, s07, s10, s14 and s20. Siov metal oxide varistors selection procedure date. You can see the varistor is in parallel to the circuit to the right.
Varistors or mov devices are used in parallel with the load or component being protected. Description dons dnrs are zinc oxide nonlinear resistors whose resistance changes as a function of the applied voltage. Siov metal oxide varistors, leaded varistors, standard series. Varistor 150vac, 200vdc, 240v, 8000a, tht, s20k150 at best. For the 230 vac mains they recommends sar of 470 or 600 v, b. The word is composed of parts of the words variable resistor. Multiple pulse mp disk varistors, s20 multiple pulse important information. Circuit protection from transient voltage by varistor. When a higher voltage appears, the varistor s structure is laid on the connectors so that the electric current finds the outlet.
What is the meaning of the capacitance parameter in the datasheet of a varistor. Metal oxide varistor tvr series, for surge protection, professional manufacturer, high quality, from china original factory. Varistors are in stock and ship sameday at mouser electronics from industry leading manufacturers. In systems with high exposure to transients industrial, mountain locations block varistors are to be preferred. K460 please read cautions and warnings and important notes at the end of. The resistance of a varistor is variable and depends on the voltage applied. S20 k40 datasheet, cross reference, circuit and application notes in pdf format.
Users should verify actual device performance in their specific applications. Our payment security system encrypts your information during transmission. It is used extensively in high power transmission circuits as well as low power mobile chargers. Varistors are produced using zinc oxide as a conductor mixed with oxides of various metals often bismuth which are characterised by much higher resistance. Siov metal oxide varistors, leaded varistors, superiormp, s20 series. General technical data climatic category operating temperature storage temperature electric strength insulation resistance response time to iec 600681 to cecc 000 to cecc 000 to cecc c kvrms m ns. The model 2400 runs varistor verification tests in order, makes passfail determinations and saves data for each test.
I have a doubt about proper values of mov and sar when they are connected in series as suggested in epcos app notes see below fig. Fast shipping on all varistors orders within europe. Epcos leaded varistors,alldatasheet, datasheet, datasheet search site for electronic. The products described herein and this document are subject to specific legal disclaimers as set forth on. Each varistor has appropriate markings that will facilitate the selection. Wide range of varistor voltages rohs compliant transistor, diode, ic, thyristor or triac semiconductor protection surge protection in consumer electronic equipment surge protection in communication, measuring or controller electronics surge protection in electronic home appliances, gas or petroleum appliances. Varistors transfer multisort elektronik electronic. They are incorporated into the circuit in such a way that when activated they will take over the current created by the high voltage away from the sensitive components. Varistor schematic symbol learning about electronics. The za series of transient voltage surge suppressors are radiallead varistors movs designed for use in the protection of low and medium voltage circuits and systems. Tyee series zinc oxide varistor are nonlinear resistors, consisting main of zinc oxide and several kinds of metal oxide additive. Varistor is a resistor that changes resistance depending on the voltage.
We are trader and supplier of circuit protection products, electronic diodes, industrial coils, interface modules, frequency control, led bar, electronic sensor and many more. It is called so as the component is made from a mixture of zinc oxide and other metal oxides like cobalt, manganese and so on and is kept intact between two electrodes which are basically metal plates. Does a typical varistor look like a capacitor packaging. Zinc oxide varistor tvr seriesproductsvetng thinking ltd. Application note varistor verification with the series.
Metal oxide varistors tnr technical terms on varistors technical term maximum continuous sinusoidal rms voltage which may be applied. Mov14dxxxk series metal oxide varistor rohs directive 200295ec jan. I am quite curious about this component and would like to seek further advise from anyone of you who have been using the varistor component. As a result, customers can choose solutions suited to needs of their project, regardless of its size. Advanced superior superiormp superior s20 page 99 s20. When the circuit is exposed to a high voltage transient, the varistor starts to conduct and clamps the transient voltage to a safe level. An presentation detailing the basic varistor operation and applicatiosn created by epcos part of tdkepc group basic varistor operation and applications.
Pspice b80 epcos varistor varistor s14 s14auto s20 metal varistor epcos b32 etfv14 e4r1 var0592xe text. Varistor voltage v n voltage across the varistor measured at 1ma of dc current. Vdrs series vdr metal oxide varistors standard vishay. Vi characteristic curves siovs20 with the load line drawn. I have noticed that 7mm 430 varistor voltage07d431k and 14mm 430 varistor voltage 14d431k have the same max continuous voltage and the same maximum clamping voltage, but the larger varistor 14d431k has higher maximum surge current, higher rated power, and higher reference capacitance. We dont share your credit card details with thirdparty sellers, and we dont sell your information to others. Epcos varistors and thermistors epcos tdk ul rated ctvs varistors. Siov metal oxide varistors leaded varistors, standard series. Metal oxide varistor mov, basics, working, specifications. Maximum continuous dc voltage which may be applied.
Varistor specification tyee varistor varistor are voltage dependent, nonlinear device which have an electrical behavior similar to backtoback zener diodes. Varistors passives wide offer of products at transfer multisort elektronik. Communication bus varistor general description the can bus and flexray varistor is a zinc oxide zno based ceramic semiconductor device with nonlinear voltagecurrent characteristics bidirectional similar to backtoback zener diodes and an emc capacitor in parallel see equivalent circuit model. However, when the surge voltage exceeds the varistor voltage, the impedance across the varistor terminals decreases sharply. Peak voltage across the varistor, measured under conditions of a specified peak impulse current and specified waveform 820sec. Recent listings manufacturer directory get instant insight into any electronic component. Please confirm technical specifications before you order andor use.
These statements are based on our knowledge of typical. Varistors transfer multisort elektronik electronic components. Vdr metal oxide varistors standard additional resources ordering information the varistors are available in a number of packaging options. Epcos, alldatasheet, datasheet, datasheet search site for electronic components and. S20k230 varistor 230vrms 20mm radial epcos inc datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes.
Wide range of varistor voltages rohs compliant transistor, diode, ic, thyristor or triac semiconductor protection surge protection in consumer electronic equipment surge protection in communication, measuring or controller electronics surge protection in electronic home. The ceramic disk is fitted with tinned copper wire and then coated with epoxy resin. Construction round varistor element, leaded coating. Hi everyone, i am currently trying to understand how to used a triacs for ac control application and come across this component which is call a varistor. Line voltage operation, radial lead datasheet catalog. For further details refer to chapter taping, packaging and lead configuration for leaded varistors.
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