Varistors are in stock and ship sameday at mouser electronics from industry leading manufacturers. Bending of the leads for different angle placement is not recommended. If only a single diode is used, then it only acts in one direction, but back to. Nte1v010 thru nte1v300 nte2v010 thru ntev480 nte524v thru. Energy ratings are based on a shift of varistor voltage of less than 10% of the initial value. 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. The power so developed must be within the specifications shown. Nvd metal oxide varistor disc type koa speer electronics, inc. The quantity of dissipation energy is a function of.
Varistor datasheet, varistor pdf, varistor data sheet, datasheet, data sheet, pdf. For this reason, varistors are also called metaloxide varistors mov. Construction round varistor element, leaded coating. Select next varistor diameter level and then reverify 3d. The varistors are suitable for handmounting bulk or automatic pick and place mounti ng tape on reel or fanfold. Metaloxide varistors movs surface mount multilayer. The varistor is bidirectional and is based around a ceramic or metal oxide. A varistor is an electronic component with an electrical resistance that varies with the applied voltage.
Metaloxide varistors movs surface mount multilayer varistors mlvs mla series peak current and energy derating curve when transients occur in rapid succession, the average power dissipation is the energy wattseconds per pulse times the number of pulses per second. Amperes volts amperes joules pf 11 14 16 20 100 36 1 0. S14k150 varistor 150v rms 14mm radial epcos inc datasheet pdf. Sm20 series 20 mm smd varistors the littelfuse sm20 series is a surfacemount metal oxide varistor for applications requiring high energytransient current capability. V1maa vb c v1maa vb c apower voltage ripple coefficient usually take 1. Users should verify actual device performance in their specific applications. They are bilateral and symmetrical vi characteristics. 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. Circuit protection from transient voltage by varistor. S20k150 varistor 150v rms 20mm radial epcos inc datasheet pdf.
Since the varistor has such a high resistance, current does not flow through it. Nvs03 varister, sv03ys varistor diode, used in kenwood models, hss101 diode, view as. Epcos metal oxide varistor siov metal oxide varistors highe series. S14k150 varistor 150v rms 14mm 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. Varistor symbol and applications metal oxide varistor. The name has been coined by linguistic blend of words. When the voltage increase above the threshold of the varistor, the suppressor draws a rapidly increasing current. However, when the surge voltage exceeds the varistor voltage, the impedance across the varistor terminals decreases sharply. Specifications are subject to change without notice. Stacking many varistors in a series as one varistor can increase the clamp voltage of a mov. Select next varistor diameter level and then reverify 3e. Even though the name varistor is derived from the terms variable resistor, the resistance in varistor cant be varied manually unlike potentiometer or rheostat where the resistance can be varied manually between their maximum and minimum values. They are also known by the name vdr voltage dependent resistor and have nonohmic characteristics.
The parts can be soldered by hand or wave soldering. When the voltage to a circuit is low or within acceptable limits, the varistor has a very high resistance. Pdf d7580zov321ra640 8x20us 10xus e86730 e38785 lr33468 varistor 503. A varistor is a varying resistor whose resistance depends on the applied voltage. What is the meaning of the capacitance parameter in the datasheet of a varistor. Peak voltage across the varistor with a specified peak impulse current of 8. If varistor voltage is below 82v, selecting an 82v rov may be. If varistor voltage is below 82v, selecting an 82v rov may be preferable over a higher diameter part. Varistor voltage at 1 ma maximum allowable voltage clamping voltage at 820s maximum peak current at 820sa recommended applications type name approvals v acrms vdc v max. Varistor specification tyee varistor varistor are voltage dependent, nonlinear device which have an electrical behavior similar to backtoback zener diodes. Varistors are available for a broad range of specifications and are classified by maximum voltage, clamp voltage, peak.
Tyee series zinc oxide varistor are nonlinear resistors, consisting main of zinc oxide and several kinds of metal oxide additive. Mu503 datasheet, mu503 pdf, mu503 data sheet, mu503 manual, mu503 pdf, mu503, datenblatt, electronics mu503, alldatasheet, free, datasheet, datasheets, data sheet. Select lower varistor diameter level and then reverify 3c, 3d, 3e and 3f. The power so developed must be within the specifications shown on the. Sem5025 datasheet led driver control ic samsung, sem5025 pdf, sem5025 pinout, sem5025 data, sem5025 circuit, manual, sem5025 schematic, reference. A simple varistor circuit learning about electronics. Allowable voltage varistor voltage withstanding surge current 8 20. Plastic package, 1 varistor skvc 20 a 251 skvc 20 a 460 250 460 120 120 45 45 45 45 145 121 plastic package, 1 varistor 1 capacitor 1if skvc 20 a 460 615 180 320 560 615 745 750 220 390 680. Plastic package, 1 varistor 1 capacitor 1if skvc 20 a 460 615 180 320 560 615 745 750 220 390 680 750. Mov14dxxxk series metal oxide varistor rohs directive 200295ec jan. Applications n power supplies n power systems n line voltage n telecom systems n white goods appliances mov20dxxxk series metal oxide varistor rohs directive 2015863, mar 31, 2015 and annex. Please confirm technical specifications before you order andor use. Features n high voltage rating n high current rating n bidirectional n surge protection n fast response time n rohs compliant n agency listing. S20k150 varistor 150v rms 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.
As a result this form of device is often called a metal oxide varistor, or mov. Varistor provide protection by voltage clamping method which is similar to that in a zener diode. Vdr metal oxide varistors standard vishay intertechnology. Varistors are available for a broad range of specifications and are classified by maximum voltage, clamp voltage, peak current, surge energy and response time. Varistor datasheet, varistor pdf, varistor data sheet, datasheet, data sheet, pdf home all manufacturers by category part name, description or manufacturer contain. Sep 22, 2015 varistor provide protection by voltage clamping method which is similar to that in a zener diode. Line voltage operation, radial lead datasheet catalog. Energy the maximum electrical energy which can be dissipated within the varistor by a single impulse of 10 x s current waveform with continuous voltage applied. Varistor voltage the voltage across the varistor at a dc current of 1.
Maximum energy during the application of one pulse of current, a certain energy will be dissipated by the varistor. Ultramov 25s varistor series littelfuse ultramov 25s varistor series are designed for applications requiring high peak surge current ratings and highenergy absorption capability. Also known as a voltagedependent resistor vdr, it has a nonlinear, nonohmic currentvoltage characteristic that is similar to that of a diode. In contrast to a diode however, it has the same characteristic for both directions of traversing current. Therefore, they come under non linear type of resistors. Avx miniature mav series varistors have been designed to provide transient voltage protection in low power ac applications and also in higher dc voltage data lines or. 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. The capacitance parameter in varistor data sheet electrical. Vdr metal oxide varistors standard additional resources ordering information the varistors are available in a number of packaging options. There are three subsidiary companies under sfi groups, including sun flower semiconductor co. 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. Smd transient voltage suppressors table of contents.