Buy bourns movdk online at newark element buy your mov 10dk from an authorized bourns distributor. For example if there is a power surge, the varistor, normally having a very high. This type contains a ceramic mass of zinc oxide grains, in a matrix of other metal oxides, such as small amounts of bismuth, cobalt, manganese oxides, sandwiched between two metal plates, which constitute the electrodes of the device. Its electrical resistance decreases with the applied voltage. The mov 20dxxxk series of 20 mm radial leaded varistor devices protects against overvoltage transients such as lightning, power contact and power induction. The metal oxide varistor or mov is a voltage dependent, nonlinear device that provides excellent transient voltage suppression. Withstanding surge current the maximum current within the varistor voltage change of. A metal oxide varistor, or mov, is an electronic component that protects equipment from voltage surges in a power line, such as from lightning strikes. Convert mov to mp4 online and free this page also contains information on the mov and mp4 file extensions. I test it to see how well it can clamp high voltage. A metal oxide varistor is also known as a surgesuppressor. The most common modern type of varistor is the metaloxide varistor mov. Mov files may contain video, audio, timecode, and more. Simple and inexpensive, the mov absorbs the energy in.
The maximum energy within the varistor voltage change of 10% when one impulse of 10. However, windows media player can open only early versions of the file extension. They have the capability to absorb high transient energies and can suppress both positive and negative transients. Varistors provide reliable and economical protection against high voltage. Mov14dxxxk series metal oxide varistor rohs directive 200295ec jan. Metal oxide varistor mov data sheet pulse electronics. S20k230 varistor 230vrms 20mm radial epcos inc datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other. Metal oxide varistor mov, basics, working, specifications. A simple varistor circuit learning about electronics. Pdf reliability evaluation of metal oxide varistors for.
Energy typical capacitance part number acrms dc dc volts. A surge in excess of the specified withstanding surge current may cause short circuits or package rupture with expulsion. 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. Metal oxide varistor is a voltage dependent resistor. Metaloxide varistors movs ultramov varistor series mouser. Tmov varistor lead free and rohs compliant models itmov varistor lead free and rohs compliant models disc diameter maximum rating 85c specifications 25c continuous transient varistor voltage at 1ma test current maximum clamping voltage 820s typical capacitance f 1mhz ac volts dc volts energy 2ms peak surge current 820s. They are used to protect vulnerable electronic circuits and components from overvoltage conditions that can cause damage.
S14k420 varistor 420vrms 14mm radial epcos inc datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other. The tinned copper alloy terminals are suitable for snpb and leadfree wave and reflow solder. Metal oxide varistors mov data sheet pulse electronics. The metal oxide varistors offer a choice of varistor voltages from 18 v to 1800 v and vrms voltages from 11 v to 1100 v. Specifications are subject to change without notice. Metaloxide varistors movs radial lead varistors tmov. Metaloxide varistors movs radial lead varistors tmov and. The name has been coined by linguistic blend of words. Typically, drivers are rated to handle surges in the range of 1 to 4 kv. This type contains a ceramic mass of zinc oxide grains, in a matrix of other metal oxides such as small amounts of bismuth, cobalt, manganese sandwiched between two metal plates the electrodes.
Metal oxide varistor basics mov is the most commonly used type of varistor. For example if there is a power surge, the varistor, normally having a very high resistance, responds to the voltage spike by absorbing its energy with a very low resistance. Shop mde semiconductor here for our wide range of varistors, thyristors, tvs diodes. Online file converter from quicktime mov to pdf portable document format, file format developed by adobe systems. Stacking many varistors in a series as one varistor can increase the clamp voltage of a mov. Allowable voltage varistor voltage withstanding surge current 8 20. However, before movs were introduced, silicon carbide, sic, was the varistor of choice. They are a type of nonlinear device that feature similar characteristics to zener diodes.
Therefore, they come under non linear type of resistors. Metal oxide varistors, more commonly known as movs are devices that provide excellent transient voltage suppression. This reduces both pcb space requirements and component height. To overcome the limitations of semiconductor based varistors like silicon carbide varistors, the metal oxide varistors mov have been developed. 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. Stacking many varistors in a series as one varistor can. Just to be sure i am not in the wrong, a varistor is a voltage dependant resistor. S20k230 varistor 230vrms 20mm radial epcos inc datasheet pdf. A metal oxide varistor mov is an individual electronic component that diverts extreme voltage to the ground or to neutral lines. The mov20dxxxk series of 20 mm radial leaded varistor devices protects against overvoltage transients such as lightning, power contact and power induction. This type contains a ceramic mass of zinc oxide grains, in a matrix of other metal.
It is called so as the component is made from a mixture of zinc oxide and other metal oxides like cobalt, manganese and. Amperes volts amperes joules pf 11 14 16 20 100 36 1 0. They are also known by the name vdr voltage dependent resistor and have nonohmic characteristics. Metal oxide varistor mov 10mm disc high surge rohs u l symbol item dimensions symbol item dimensions cut out length 1. You could also consider using vlc which is a free downlodable program. Mov is a format developed by apple and used for movie and other video data storage. Users should verify actual device performance in their specific applications. 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. In this video i test an mov varistor, which is a component used for protecting circuits from over voltage. The basic varistor consists of a layer of oxide on a metal sheet, typically zinc. However, windows media player can open only early versions of the file.
Varistors vishay varistors provide a reliable and efficient way to protect against highvoltage transients and surges. Mov 14dxxxk series metal oxide varistor rohs directive 200295ec jan. Jan 28, 2018 in this video i test an mov varistor, which is a component used for protecting circuits from over voltage. Varistor characteristics, terms and consideration factors. For this reason, varistors are also called metaloxide varistors mov.
In the event of receiving this voltage, the mov would clamp and shunt the excess power. They are a type of nonlinear device that feature similar characteristics to zener. Nov 10, 2018 the most common type of varistor on the market today is the metal oxide varistor, mov. The ultramov metal oxide varistor series is designed for applications. The metal oxide varistor is designed to protect various types of electronic devices and semiconductor elements from switching and induced lightning surges.
In the event of receiving this voltage, the mov would clamp and shunt the excess power safely to ground, so that the excess current would not flow through the ac motor but through the varistor. The most common type of varistor on the market today is the metal oxide varistor, mov. It is also a nonlinear device and provides very good transient voltage surge protection. The metal oxide varistor is designed to protect various types of. Mov to mp4 convert your mov to mp4 for free online. A varistor is a varying resistor whose resistance depends on the applied voltage. Shop mde semiconductor here for our wide range of varistors.
The varistor, ranging from 7 to 14 mm in diameter, is usually located downstream of the fuse on the ac mains. For example, an ordinary 10mm mov capable of 500a maximum surge current could be replaced by a new 5mm lv ultramov varistor with the same 500a surge rating. Select mp4 as the the format you want to convert your mov file to. A varistor is an electronic component that protects expensive devices from harmful power surges, much like a shock absorber.
Pdf metal oxide varistors movs are the essence of surge protection devices. Simple and inexpensive, the mov absorbs the energy in a surge, preventing it from damaging other devices in a circuit. Varistor symbol and applications metal oxide varistor. Select the right varistors for overvoltage circuit protection. A simple equivalent circuit representing a metal oxide varistor as a. This mov circuit will clamp up to 300vac if a power surge allowing transients into the circuit were to be that high. They have the capability to absorb high transient energies and can suppress both positive. Metaloxide varistors movs radial lead varistors ultramov tm 25s varistor series 100 0 0. Metal oxide varistors consist of approximately 90% zinc oxide as a ceramic base material plus other filler materials for the formation of junctions. The most common type of varistor is the metaloxide varistor mov.
The power so developed must be within the specifications shown on the. This type contains a ceramic mass of zinc oxide grains, in a matrix of other metal oxides, such as small amounts of. Withstanding surge current the maximum current within the varistor voltage change of 10% with the standard impulse current 820. The metal oxide varistor or mov for short, is a voltage dependant resistor in which the resistance material is a metallic oxide, primarily zinc oxide zno pressed into a ceramic like material. Pdf comparative study of metal oxide varistors movs for. An lv ultramov varistor is smaller than a standard littelfuse varistor with the same surge capability.
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