Metal oxide varistor mov, basics, working, specifications. For the selected sar ef470x sparkover voltage could be anywhere from 400 to 588 v and for mentioned mov s20k250. Amperes volts amperes joules pf 11 14 16 20 100 36 1 0. At low voltages has an extremely high resistance at high voltages has a very low resistance mlvs are made using multiple, fine grain ceramic layers of a.
Users should verify actual device performance in their specific applications. Ch varistor series ch series transient surge suppressors are small, metaloxide varistors movs manufactured in leadless chip form. S20k50 varistor 50vrms 20mm radial epcos inc datasheet. When a transient occurs, the varistor resistance changes from a very. 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. Ch varistor series lawrence berkeley national laboratory. Nvd metal oxide varistor disc type koa speer electronics, inc. Siov metal oxide varistors, leaded varistors, superiormp, s20 series. Type series s05s07s10s14s20, voltage classes k k300.
S102s02 series sip 4pin t s202s02 series triac output ssr. Some parts of this publication contain statements about the suitability of our products for certain areas of application. Any snubber or varistor used for the above mentioned scenarios should be located as close to the main output triac as possible. Import data and price of varistor metal oxide under hs code. Import data and price of varistor metal oxide under hs. A global provider of products, services, and solutions, arrow aggregates electronic components and enterprise computing solutions for customers and suppliers in industrial and commercial markets.
At low voltages has an extremely high resistance at high voltages has a very low resistance mlvs are made using multiple, fine grain ceramic layers of a specific formulation. Stock code description type 335520681 varistor 20k 681 metal oxide varistor mov 335520751 varistor 20k 751 metal oxide varistor mov 335520781 varistor 20k 781 metal oxide varistor mov. These varistors and thermistors provide voltage and noise suppression and temperature measurement and compensation in automotive. The name varistor is a portmanteau of varying resistor. Energy typical capacitance part number acrms dc dc volts. For over voltage protection, a varistor may be used.
S20k230 varistor 230vrms 20mm radial epcos inc datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other. Clamping voltage v c maximum peak voltage developed across the varistor when passing an 820 s class current pulse. For the 230 vac mains they recommends sar of 470 or 600 v, b. Particular attention needs to be paid when utilizing ssrs that incorporate zero crossing circuitry. Fast response to the rapidly rising surge voltage m. These varistors and thermistors provide voltage and noise suppression and temperature measurement and compensation in automotive applications. It is called so as the component is made from a mixture of zinc oxide and other metal oxides like cobalt, manganese and. Multiple pulse mp disk varistors, s20 multiple pulse important information. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Vdrs series vdr metal oxide varistors standard vishay. This type contains a ceramic mass of zinc oxide grains, in a matrix of other metal oxides, such as small amounts of. Please confirm technical specifications before you order andor use.
These statements are based on our knowledge of typical requirements that are often placed on our products. Varistor voltage v n voltage across the varistor measured at 1ma of dc current. The term is only used for nonohmic varying resistors. The energy of the incoming surge is partially conducted and partially absorbed, protecting the circuit. For further details refer chapter taping, packaging and lead configuration for leaded varistors. Siov metal oxide varistors, leaded varistors, automotive series. Varistor s20 k datasheet, cross reference, circuit and application notes in pdf format. Metal oxide varistors of the newly developed mp series. 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. The energy of the incoming surge is partially conducted and partially. Arrow electronics guides innovation forward for over 200,000 of the worlds leading manufacturers of technology used in homes, business and daily life. S20 k40 datasheet, cross reference, circuit and application notes in pdf format. Multiple pulse disk varistors s20 atd elektronik sro.
For further details refer to chapter taping, packaging and lead configuration for leaded varistors. 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. Circuit protection from transient voltage by varistor. Siov metal oxide varistors data book 2008 schmidmultitech sro.
Device ratings and specifications continued v250la2 7 2502 250 330 21 1200 354 473 730 10 90 v250la4 7 2504 250 330 21 1200 354 429 650 10 90 v250la10 10 250l 250 330 40 2500 354 429 650 25 220 v250la20a 14 250l20 250 330 72 4500 354 429 650 50 500. To better understand the characteristics and uses of mlvs, it helps to understand the characteristics of the metal. Stock code description type 335520681 varistor 20k 681 metal oxide varistor mov 335520751 varistor. Allowable voltage varistor voltage withstanding surge current 8 20. The ceramic disk is fitted with tinned copper wire and then coated with epoxy resin. They are intended for use in a variety of applications from low voltage dc to offline boardlevel protection. K460, s10s14 k11 k680, s20 k11 k1100 iec delivery mode bulk standard, taped versions on reel or in ammo pack upon request.
When the circuit is exposed to a high voltage transient, the varistor starts to conduct and clamps the transient voltage to a safe level. Epcos tdk s20k varistors are available at mouser electronics. A surge in excess of the specified withstanding surge current may cause short circuits or package rupture with expulsion. Leakage current i l current passing through the varistor at rated dc voltage at 25c or any other specified temperature. Connecting varistor and surge arrester in series electrical. Cookies are small text files that can be used by websites to make a users experience more efficient. Siov, leaded varistors, standard series, s05, s07, s10, s14 and s20. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without epcos prior express consent is prohibited. S20k230 varistor 230vrms 20mm radial epcos inc datasheet pdf. Varistor voltage v n voltage across the varistor measured at 1ma of. Pspice b80 epcos varistor varistor s14 s14auto s20 metal varistor epcos b32 etfv14 e4r1 var0592xe text. The most common modern type of varistor is the metaloxide varistor mov. A surge in excess of the specified withstanding surge current may cause short circuits or package rupture with expulsion of material.
Line voltage operation, radial lead datasheet catalog. Epcos tdk offers various types of varistors and thermistors. They are intended for use in a variety of applications from low. A metal oxide varistor is a voltage dependent, symmetrical nonlinear resistor. S20k50 varistor 50vrms 20mm radial epcos inc datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other. Energy typical capacitance part number acrms dc dc volts 1 time vc ip 2 ms 10 1,000 s at 1 khz volts volts min. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. They are coated with ul 94 v0 approved ocher colored halogenfree epoxy, which provides electrical, mechanical and climatic protection. Mounting the varistors are suitable for handmounting bulk or.
Advanced superior superiormp superior s20 page 99 s20. Mov14dxxxk series metal oxide varistor rohs directive 200295ec jan. Device ratings and specifications continued v250la2 7 2502 250 330 21 1200 354 473 730 10 90. When the circuit is s20k275 to a high voltage transient, the varistor starts to conduct and clamps the transient voltage to a safe level. Variable resistors, such as the potentiometer and the rheostat, have ohmic characteristics. 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. However, when the surge voltage exceeds the varistor voltage, the impedance across the varistor terminals decreases sharply. 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. Supersedes 20 multilayer varistor application notes. For further details refer to chapter taping, packaging and lead. These devices, which have significantly lower profiles than traditional.