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Thermistor

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stainless steel, aluminum, copper brass or plastic and configurations include threaded (NPT, etc.), flanged (with mounting holes for ease of installation) and straight (flat tip, pointed tip, radius tip, etc.). Thermistor probe assemblies are very rugged and are highly customizable to fit the application needs. Probe assemblies have gained in popularity over the years as improvements in research, engineering and manufacturing techniques have been made.
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stability. NTC thermistor elements come in many styles such as axial-leaded glass-encapsulated (DO-35, DO-34 and DO-41 diodes), glass-coated chips, epoxy-coated with bare or insulated lead wire and surface-mount, as well as thin film versions. The typical operating temperature range of a thermistor is −55 °C to +150 °C, though some glass-body thermistors have a maximal operating temperature of +300 °C.
25: 179: 2384:(a thermally sensitive silicon resistor). Silistors employ silicon as the semiconductive component material. Unlike ceramic PTC thermistors, silistors have an almost linear resistance-temperature characteristic. Silicon PTC thermistors have a much smaller drift than an NTC thermistor. They are stable devices which are hermetically sealed in an axial leaded glass encapsulated package. 2845:
For effective degaussing, it is necessary that the magnitude of the alternating magnetic field produced by the degaussing coil decreases smoothly and continuously, rather than sharply switching off or decreasing in steps; the PTC thermistor accomplishes this naturally as it heats up. A degaussing circuit using a PTC thermistor is simple, reliable (for its simplicity), and inexpensive.
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Many electric motors and dry type power transformers incorporate PTC thermistors in their windings. When used in conjunction with a monitoring relay they provide overtemperature protection to prevent insulation damage. The equipment manufacturer selects a thermistor with a highly non-linear response
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circuit of most CRT displays. When the display unit is initially switched on, current flows through the thermistor and degaussing coil. The coil and thermistor are intentionally sized so that the current flow will heat the thermistor to the point that the degaussing coil shuts off in under a second.
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The dissipation constant is a measure of the thermal connection of the thermistor to its surroundings. It is generally given for the thermistor in still air and in well-stirred oil. Typical values for a small glass-bead thermistor are 1.5 mW/°C in still air and 6.0 mW/°C in stirred oil. If
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circuits of many CRT monitors and televisions an appropriately chosen thermistor is connected in series with the degaussing coil. This results in a smooth current decrease for an improved degaussing effect. Some of these degaussing circuits have auxiliary heating elements to heat the thermistor (and
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prevents the formation of potential barriers between the crystal grains, leading to a low resistance. In this region the device has a small negative temperature coefficient. At the Curie point temperature, the dielectric constant drops sufficiently to allow the formation of potential barriers at the
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As an inrush current limiter device in power supply circuits, they present a higher resistance initially, which prevents large currents from flowing at turn-on, and then heat up and become much lower resistance to allow higher current flow during normal operation. These thermistors are usually much
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UL Recognized NTC thermistors in the XGPU2 category helps save equipment manufacturers time and money when applying for safety approvals for their end product. DO-35 hermetically sealed glass encapsulated thermistors can operate up to 250 °C which gives them an advantage in many applications
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in electronic circuits. Current hogging can occur when electronic devices are connected in parallel. In severe cases, current hogging can cause cascading failure of all the devices. A PTC thermistor attached in series with each device can assure the current is divided reasonably evenly between the
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The dynamics of PTC thermistors being powered lends to a wide range of applications. When first connected to a voltage source, a large current corresponding to the low, cold, resistance flows, but as the thermistor self-heats, the current is reduced until a limiting current (and corresponding peak
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The power dissipated in a thermistor is typically maintained at a very low level to ensure insignificant temperature measurement error due to self-heating. However, some thermistor applications depend upon significant "self-heating" to raise the body temperature of the thermistor well above the
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Thermistors are generally produced using powdered metal oxides. With vastly improved formulas and techniques over the past 20 years, NTC thermistors can now achieve accuracies over wide temperature ranges such as ±0.1 °C or ±0.2 °C from 0 °C to 70 °C with excellent long-term
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thermistors, resistance increases as temperature rises; usually because of increased thermal lattice agitations, particularly those of impurities and imperfections. PTC thermistors are commonly installed in series with a circuit, and used to protect against overcurrent conditions, as resettable
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the temperature of the environment is known beforehand, then a thermistor may be used to measure the value of the dissipation constant. For example, the thermistor may be used as a flow-rate sensor, since the dissipation constant increases with the rate of flow of a fluid past the thermistor.
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Thermistor Probe Assemblies offer protection of the sensor in harsh environments. The thermistor sensing element can be packaged into a variety of enclosures for use in industries such as HVAC/R, Building Automation, Pool/Spa, Energy and Industrial Electronics. Enclosures can be made out of
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As current-limiting devices for circuit protection, as replacements for fuses. Current through the device causes a small amount of resistive heating. If the current is large enough to generate heat more quickly than the device can lose it to its surroundings, the device heats up, causing its
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Over large changes in temperature, calibration is necessary. Over small changes in temperature, if the right semiconductor is used, the resistance of the material is linearly proportional to the temperature. There are many different semiconducting thermistors with a range from about
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When a current flows through a thermistor, it generates heat, which raises the temperature of the thermistor above that of its environment. If the thermistor is being used to measure the temperature of the environment, this electrical heating may introduce a significant error (an
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In crystal oscillators for temperature compensation, medical equipment temperature control, and industrial automation, silicon PTC thermistors display a nearly linear positive temperature coefficient (0.7%/°C). A linearization resistor can be added if further linearization is
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The error in the Steinhart–Hart equation is generally less than 0.02 °C in the measurement of temperature over a 200 °C range. As an example, typical values for a thermistor with a resistance of 3 kΩ at room temperature (25 °C = 298.15 K, R in Ω) are:
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thermistor, this device has a highly nonlinear resistance/temperature response useful for thermal or circuit control, not for temperature measurement. Besides circuit elements used to limit current, self-limiting heaters can be made in the form of wires or strips, useful for
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term. In practice, the equation gives good numerical results for resistances expressed in ohms or kΩ, but the coefficients a, b, and c must be stated with reference to the unit. To give resistance as a function of temperature, the above cubic equation in
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thermistors, resistance decreases as temperature rises; usually because electrons are bumped up by thermal agitation from the valence band to the conduction band. An NTC is commonly used as a temperature sensor, or in series with a circuit as an
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ambient temperature, so the sensor then detects even subtle changes in the thermal conductivity of the environment. Some of these applications include liquid-level detection, liquid-flow measurement and air-flow measurement.
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path through the device. When the plastic heats up, it expands, forcing the carbon grains apart, and causing the resistance of the device to rise, which then causes increased heating and rapid resistance increase. Like the
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As heaters, in the automotive industry, to provide cabin heating (in addition to heating provided by a heat pump or the waste heat of an internal combustion engine), or to heat diesel fuel in cold conditions before engine
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Because early thermistors were difficult to produce and applications for the technology were limited, commercial production of thermistors did not begin until the 1930s. A commercially viable thermistor was invented by
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Barium titanate thermistors can be used as self-controlled heaters; for a given voltage, the ceramic will heat to a certain temperature, but the power used will depend on the heat loss from the ceramic.
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As sensors in automotive applications to monitor fluid temperatures like the engine coolant, cabin air, external air or engine oil temperature, and feed the relative readings to control units like the
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Thermistors are typically built by using metal oxides. They're typically pressed into a bead, disk, or cylindrical shape and then encapsulated with an impermeable material such as epoxy or glass.
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Throughout the consumer appliance industry for measuring temperature. Toasters, coffee makers, refrigerators, freezers, hair dryers, etc. all rely on thermistors for proper temperature control.
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is the voltage drop across the thermistor. This power is converted to heat, and this heat energy is transferred to the surrounding environment. The rate of transfer is well described by
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In practical devices, the linear approximation model (above) is accurate only over a limited temperature range. Over wider temperature ranges, a more complex resistance–temperature
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The current and voltage across the thermistor depend on the particular circuit configuration. As a simple example, if the voltage across the thermistor is held fixed, then by
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In the food handling and processing industry, especially for food storage systems and food preparation. Maintaining the correct temperature is critical to prevent
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NTC thermistors are widely used as inrush-current limiters and temperature sensors, while PTC thermistors are used as self-resetting overcurrent protectors and
1200:{\displaystyle {\begin{aligned}y&={\frac {1}{2c}}\left(a-{\frac {1}{T}}\right),\\x&=y+{\sqrt {\left({\frac {b}{3c}}\right)^{3}+y^{2}}}.\end{aligned}}} 46: 1513: 2948:
NTC thermistors come in bare and lugged forms, the former is for point sensing to achieve high accuracy for specific points, such as laser diode die, etc.
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is the resistance. The equation is not dimensionally correct, since a change in the units of R results in an equation with a different form, containing a
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grain boundaries, and the resistance increases sharply with temperature. At even higher temperatures, the material reverts to NTC behaviour.
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sulfide decreased dramatically as temperature increased. (This was also the first documented observation of a semiconducting material.)
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resistance to increase. This creates a self-reinforcing effect that drives the resistance upwards, therefore limiting the current.
459: 4330: 3600: 3136: 1336:{\displaystyle {\begin{aligned}a&=1.40\times 10^{-3},\\b&=2.37\times 10^{-4},\\c&=9.90\times 10^{-8}.\end{aligned}}} 3749: 3307: 3256: 3178: 795: 2434:, the effect being enhanced by using two PTC thermistors in series, with one thermistor cool, and the other thermistor hot. 971: 4247: 3680: 2882: 4028: 3808: 2874:
curve where resistance increases dramatically at the maximum allowable winding temperature, causing the relay to operate.
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as close to 0 as possible so that their resistance remains nearly constant over a wide temperature range.
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Assuming, as a first-order approximation, that the relationship between resistance and temperature is
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whose resistance is strongly dependent on temperature, more so than in standard resistors. The word
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is negative, the resistance decreases with increasing temperature, and the device is called a
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For measurement of temperature profile inside the sealed cavity of a convective (thermal)
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larger than measuring type thermistors, and are purposely designed for this application.
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device temperature) is reached. The current-limiting effect can replace fuses. In the
4800: 4721: 4612: 4564: 4393: 4320: 4282: 3788:"Thermistors & Thermocouples:Matching the Tool to the Task in Thermal Validation" 3755: 3728: 3642: 3497: 3419: 3377: 3313: 3303: 3262: 3252: 3184: 3174: 3133: 2939: 2033:. The average slope of this function will then yield an estimate of the value of the 782: 738: 170: 3216: 4863: 4516: 4463: 4290: 3929: 3630: 3585: 3389: 734: 726: 412:, the resistance increases with increasing temperature, and the device is called a 4325: 3479: 3086: 4793: 4726: 4579: 4310: 4220: 4064: 3140: 3035: 2973: 2952: 2889: 2860: 2353: 2083: 409: 3951: 887:
are called the Steinhart–Hart parameters and must be specified for each device.
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Mukherjee, Rahul; Basu, Joydeep; Mandal, Pradip; Guha, Prasanta Kumar (2017).
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A failed (blown) NTC thermistor that worked as an inrush current limiter in a
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Calculation of Steinhart-Hart Coefficients for Thermistors at sourceforge.net
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Negative-temperature-coefficient (NTC) thermistor, bead type, insulated wires
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As a thermometer for low-temperature measurements of the order of 10 K.
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standard symbol for a PTC thermistor includes a "+t°" under the rectangle.
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standard symbol for a NTC thermistor includes a "−t°" under the rectangle.
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is cool, the carbon grains are all in contact with each other, forming a
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Depending on materials used, thermistors are classified into two types:
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Many NTC thermistors are made from a pressed disc, rod, plate, bead or
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a material can conduct. In certain materials like ferric oxide (Fe
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provides a more faithful characterization of the performance. The
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Morris, Alan S. (2020). "Chapter 14 - Temperature measurement".
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and to monitor the temperature of battery packs while charging.
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Thermistors are categorized based on their conduction models.
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in electronic circuits. Many electronic devices, for example
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In temperature-compensated voltage-controlled oscillators in
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to 2,000 kelvins (−273.14 °C to 1,700 °C).
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Most PTC thermistors are made from doped polycrystalline
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Type of resistor whose resistance varies with temperature
3681:"ED35U UL Recognized Glass Encapsulated NTC Thermistors" 3151: 3149: 2087:. The more charge carriers that are available, the more 3598: 3299:
Fatigue testing and analysis : theory and practice
865:{\displaystyle {\frac {1}{T}}=a+b\ln R+c\,(\ln R)^{3},} 430:. There are two types of PTC resistor – 3248:
Measurement and instrumentation theory and application
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The electrical power input to the thermistor is just
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semiconductor is formed and the charge carriers are
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NTC thermistors are manufactured from oxides of the
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Depending on type of the thermistor in question the
3514:"PTC thermistor – Positive Temperature Coefficient" 3418:(4 ed.). Butterworths. pp. 6-29 to 6-41. 2972:The first NTC thermistor was discovered in 1833 by 1614:is the resistance of the thermistor at temperature 1358:NTC thermistors can also be characterised with the 3601:"A review of micromachined thermal accelerometers" 3366:. Agilent Application Note. Agilent Semiconductor. 2806: 2733: 2692: 2638: 2596: 2511: 2316: 2274: 2252: 2230: 2208: 2186: 2160: 2025: 1997: 1971: 1906:{\displaystyle T={\frac {B}{\ln(R/r_{\infty })}}.} 1905: 1834: 1763: 1703: 1588: 1499: 1473: 1439: 1335: 1199: 1044: 965:can be solved, the real root of which is given by 957: 930: 864: 648: 628: 598: 521: 484: 450: 400: 377: 349: 327: 302: 273: 3725:Principles and Methods of Temperature Measurement 2976:, who reported on the semiconducting behavior of 4845: 3480:"What is a Thermistor? How do thermistors work?" 3087:"What is a Thermistor? How do thermistors work?" 2870:to provide the heat necessary to expand the wax. 3747: 3695:"1833 - First Semiconductor Effect is Recorded" 2807:{\displaystyle T_{0}=T(R)-{\frac {V^{2}}{KR}}.} 1621:(25 °C = 298.15 K). Solving for 1366:) parameter equation, which is essentially the 3605:Journal of Micromechanics and Microengineering 2931:Thermistors are often used in the hot ends of 2404:PTC, which is sold under brand names such as " 3809: 3240: 3238: 2924:Thermistors are also commonly used in modern 1835:{\displaystyle r_{\infty }=R_{0}e^{-B/T_{0}}} 659: 3251:. Reza Langari (Third ed.). Amsterdam. 2646:is the temperature of the surroundings, and 1346: 789:is a widely used third-order approximation: 636:coefficient should not be confused with the 3687: 3413: 2963:when UL is requested for a sensing element. 2921:To monitor the temperature of an incubator. 2238:= cross-sectional area of the material (m), 1920:-parameter equation can also be written as 4854:Heating, ventilation, and air conditioning 3816: 3802: 3369: 3279:: CS1 maint: location missing publisher ( 3235: 770: 529:("alpha sub T") is used. It is defined as 3823: 3616: 3573:Inrush Current Limiting Power Thermistors 2980:. Faraday noticed that the resistance of 2458:rate-of-climb instrument, the electronic 2161:{\displaystyle I=n\cdot A\cdot v\cdot e,} 1972:{\displaystyle \ln R=B/T+\ln r_{\infty }} 999: 836: 261: 2049: 1845:This can be solved for the temperature: 1440:{\displaystyle a=1/T_{0}-(1/B)\ln R_{0}} 49:of all important aspects of the article. 3170:Industrial ventilation design guidebook 2444: 2397:reduce the resulting current) further. 2216:= density of charge carriers (count/m), 495:Instead of the temperature coefficient 4846: 3727:. John Wiley & Sons. p. 203. 3454:"NTC thermistor » Resistor Guide" 3375: 3244: 2400:Another type of PTC thermistor is the 2344:PTC (positive temperature coefficient) 2317:{\displaystyle e=1.602\times 10^{-19}} 2046:NTC (negative temperature coefficient) 45:Please consider expanding the lead to 3797: 3718: 3494:The Ultimate Book of Saturday Science 3416:Electronics Engineer's Reference Book 3344: 3040:Electrical Engineering Stack Exchange 1764:{\displaystyle R=r_{\infty }e^{B/T},} 501:temperature coefficient of resistance 359:temperature coefficient of resistance 274:{\displaystyle \Delta R=k\,\Delta T,} 4248:Three-dimensional integrated circuit 3530: 3407: 3364:"Practical Temperature Measurements" 2597:{\displaystyle P_{T}=K(T(R)-T_{0}),} 2260:= drift velocity of electrons (m/s), 663: 385:may be either positive or negative. 18: 4029:Programmable unijunction transistor 2368:varies with temperature. Below the 2040: 13: 3930:Multi-gate field-effect transistor 3790:– Journal of Validation Technology 3394:10.1002/j.1538-7305.1947.tb01314.x 1964: 1889: 1786: 1735: 319: 294: 262: 249: 230: 14: 4880: 3908:Insulated-gate bipolar transistor 3771: 3158:. Littlefuse Technical Resources. 2118:This is described in the formula 4152:Heterostructure barrier varactor 3879:Chemical field-effect transistor 3143:. Micro-chip Technologies. 2010. 3061:"Standards for Resistor Symbols" 2412:grains embedded in it. When the 2380:Another type of thermistor is a 2111:semiconductor is created, where 667: 461:negative-temperature-coefficient 415:positive-temperature-coefficient 225:resistance temperature detectors 177: 133: 122:self-regulating heating elements 107:positive-temperature-coefficient 95:Negative-temperature-coefficient 23: 4200:Mixed-signal integrated circuit 3741: 3712: 3673: 3649: 3592: 3578: 3566: 3552: 3543: 3524: 3506: 3486: 3472: 3467:"PTC Thermistors and Silistors" 3460: 3446: 3432: 3357: 3338: 2825: 2099:) with titanium (Ti) doping an 1599:where the temperatures and the 751:PTCs are usually prepared from 37:may be too short to adequately 3778:The thermistor at bucknell.edu 3754:. Momentum Press. p. 12. 3209: 3161: 3127: 3103: 3079: 3053: 3028: 2773: 2767: 2588: 2572: 2566: 2560: 1894: 1873: 1418: 1404: 919: 906: 850: 837: 567: 561: 47:provide an accessible overview 1: 3748:Jones, Deric P., ed. (2009). 3533:"Temperature Compensated VCO" 3382:Bell System Technical Journal 3223:. Wavelength Electronics, Inc 3022: 2194:= electric current (amperes), 183:Thermistor or varistor symbol 4231:Silicon controlled rectifier 4093:Organic light-emitting diode 3983:Diffused junction transistor 2866:In an electrically actuated 2693:{\displaystyle P_{E}=P_{T}.} 7: 4035:Static induction transistor 3972:Bipolar junction transistor 3924:MOS field-effect transistor 3896:Fin field-effect transistor 2995: 2081:by promoting them into the 931:{\displaystyle (\ln R)^{2}} 629:{\displaystyle \alpha _{T}} 522:{\displaystyle \alpha _{T}} 70:is a semiconductor type of 10: 4885: 4242:Static induction thyristor 3549:Patent CN 1273423A (China) 2967: 2056:switched-mode power supply 774: 706:of metals: e.g. chromium ( 660:Construction and materials 4779: 4679: 4646: 4578: 4515: 4443: 4411:(Hexode, Heptode, Octode) 4349: 4281: 4163:Hybrid integrated circuit 4127: 4055: 4006:Light-emitting transistor 3960: 3842: 3831: 3414:L. W Turner, ed. (1976). 2512:{\displaystyle P_{E}=IV,} 2282:= charge of an electron ( 2115:are the charge carriers. 176: 169: 154: 144: 132: 4458:Backward-wave oscillator 4168:Light emitting capacitor 4024:Point-contact transistor 3994:Junction Gate FET (JFET) 3635:10.1088/1361-6439/aa964d 2470:as was formerly done in 335:, change in temperature, 328:{\displaystyle \Delta T} 303:{\displaystyle \Delta R} 223:Thermistors differ from 189: 4469:Crossed-field amplifier 3988:Field-effect transistor 3699:Computer History Museum 3560:"ED35S PTC Thermistors" 3345:Matus, Michael (2011). 2532:Newton's law of cooling 1368:Steinhart–Hart equation 787:Steinhart–Hart equation 777:Steinhart–Hart equation 771:Steinhart–Hart equation 310:, change in resistance, 109:(PTC) thermistors have 97:(NTC) thermistors have 4638:Voltage-regulator tube 4205:MOS integrated circuit 4070:Constant-current diode 4046:Unijunction transistor 3719:McGee, Thomas (1988). 3661:EI Sensor Technologies 3376:Becker, J. A. (1947). 3330:: CS1 maint: others ( 3221:Wavelength Electronics 3201:: CS1 maint: others ( 3156:Thermistor Terminology 3115:EI Sensor Technologies 3091:EI Sensor Technologies 3012:Iron-hydrogen resistor 3002:Resistance thermometer 2901: 2830: 2808: 2735: 2694: 2640: 2598: 2513: 2372:temperature, the high 2318: 2276: 2254: 2232: 2210: 2188: 2162: 2058: 2027: 1999: 1973: 1907: 1836: 1765: 1705: 1590: 1501: 1475: 1441: 1337: 1201: 1046: 959: 932: 866: 650: 630: 600: 523: 486: 452: 402: 379: 351: 329: 304: 275: 205:inrush current limiter 4707:Electrolytic detector 4480:Inductive output tube 4296:Low-dropout regulator 4211:Organic semiconductor 4142:Printed circuit board 3978:Darlington transistor 3825:Electronic components 2918:and to the dashboard. 2809: 2736: 2734:{\displaystyle I=V/R} 2695: 2641: 2639:{\displaystyle T_{0}} 2599: 2514: 2319: 2277: 2255: 2233: 2211: 2189: 2163: 2053: 2028: 2000: 1998:{\displaystyle \ln R} 1974: 1908: 1837: 1766: 1706: 1591: 1502: 1476: 1474:{\displaystyle b=1/B} 1442: 1338: 1202: 1047: 960: 958:{\displaystyle \ln R} 933: 867: 651: 631: 601: 524: 487: 453: 403: 380: 352: 330: 305: 276: 4859:Resistive components 4525:Beam deflection tube 4194:Metal-oxide varistor 4087:Light-emitting diode 3941:Thin-film transistor 3902:Floating-gate MOSFET 2863:protection circuits. 2748: 2711: 2661: 2652:dissipation constant 2623: 2541: 2484: 2445:Self-heating effects 2432:latch/memory circuit 2286: 2266: 2244: 2222: 2200: 2178: 2125: 2009: 1983: 1924: 1852: 1778: 1721: 1632: 1514: 1485: 1451: 1374: 1218: 1062: 972: 943: 903: 893:absolute temperature 796: 640: 613: 536: 506: 476: 442: 432:switching thermistor 392: 369: 341: 316: 291: 246: 105:temperatures, while 4501:Traveling-wave tube 4301:Switching regulator 4137:Printed electronics 4114:Step recovery diode 3891:Depletion-load NMOS 3657:"Thermistor Probes" 3627:2017JMiMi..27l3002M 3217:"Thermistor Basics" 2926:digital thermostats 2883:bipolar transistors 2472:telephone exchanges 2374:dielectric constant 2366:dielectric constant 2026:{\displaystyle 1/T} 1714:or, alternatively, 1500:{\displaystyle c=0} 721:), manganese (e.g. 164:Electric resistance 129: 4806:Crystal oscillator 4666:Variable capacitor 4341:Switched capacitor 4283:Voltage regulators 4157:Integrated circuit 4041:Tetrode transistor 4019:Pentode transistor 4012:Organic LET (OLET) 3999:Organic FET (OFET) 3751:Biomedical Sensors 3469:The Resistor Guide 3139:2017-09-22 at the 2804: 2731: 2690: 2636: 2594: 2509: 2314: 2272: 2250: 2228: 2206: 2184: 2158: 2059: 2023: 1995: 1969: 1903: 1832: 1761: 1701: 1586: 1497: 1471: 1437: 1354:parameter equation 1333: 1331: 1197: 1195: 1042: 955: 928: 862: 679:. You can help by 646: 626: 596: 519: 482: 448: 398: 375: 347: 325: 300: 271: 127: 4841: 4840: 4801:Ceramic resonator 4613:Mercury-arc valve 4565:Video camera tube 4517:Cathode-ray tubes 4277: 4276: 3885:Complementary MOS 3496:(Princeton 2012) 3492:Downie, Neil A., 3309:978-0-08-047769-5 3258:978-0-12-817142-4 3180:978-0-12-289676-7 3134:"NTC Thermistors" 2940:foodborne illness 2840:As timers in the 2799: 2275:{\displaystyle e} 2253:{\displaystyle v} 2231:{\displaystyle A} 2209:{\displaystyle n} 2187:{\displaystyle I} 2069:material such as 1898: 1692: 1672: 1603:parameter are in 1581: 1558: 1545: 1525: 1188: 1163: 1113: 1092: 1019: 807: 783:transfer function 697: 696: 656:parameter below. 649:{\displaystyle a} 591: 571: 485:{\displaystyle k} 451:{\displaystyle k} 401:{\displaystyle k} 378:{\displaystyle k} 350:{\displaystyle k} 187: 186: 171:Electronic symbol 156:Working principle 64: 63: 4876: 4695:electrical power 4580:Gas-filled tubes 4464:Cavity magnetron 4291:Linear regulator 3840: 3839: 3818: 3811: 3804: 3795: 3794: 3766: 3765: 3745: 3739: 3738: 3716: 3710: 3709: 3707: 3705: 3691: 3685: 3684: 3677: 3671: 3670: 3668: 3667: 3653: 3647: 3646: 3620: 3596: 3590: 3589: 3582: 3576: 3570: 3564: 3563: 3556: 3550: 3547: 3541: 3540: 3537:www.oldcrows.net 3528: 3522: 3521: 3510: 3504: 3490: 3484: 3483: 3476: 3470: 3464: 3458: 3457: 3450: 3444: 3443: 3436: 3430: 3429: 3411: 3405: 3404: 3402: 3400: 3373: 3367: 3361: 3355: 3354: 3342: 3336: 3335: 3329: 3321: 3294: 3285: 3284: 3278: 3270: 3242: 3233: 3232: 3230: 3228: 3213: 3207: 3206: 3200: 3192: 3165: 3159: 3153: 3144: 3131: 3125: 3124: 3122: 3121: 3107: 3101: 3100: 3098: 3097: 3083: 3077: 3076: 3074: 3072: 3057: 3051: 3050: 3048: 3046: 3032: 2813: 2811: 2810: 2805: 2800: 2798: 2790: 2789: 2780: 2760: 2759: 2740: 2738: 2737: 2732: 2727: 2699: 2697: 2696: 2691: 2686: 2685: 2673: 2672: 2645: 2643: 2642: 2637: 2635: 2634: 2603: 2601: 2600: 2595: 2587: 2586: 2553: 2552: 2526:is current, and 2518: 2516: 2515: 2510: 2496: 2495: 2462:, or serve as a 2323: 2321: 2320: 2315: 2313: 2312: 2281: 2279: 2278: 2273: 2259: 2257: 2256: 2251: 2237: 2235: 2234: 2229: 2215: 2213: 2212: 2207: 2193: 2191: 2190: 2185: 2167: 2165: 2164: 2159: 2041:Conduction model 2032: 2030: 2029: 2024: 2019: 2004: 2002: 2001: 1996: 1978: 1976: 1975: 1970: 1968: 1967: 1946: 1912: 1910: 1909: 1904: 1899: 1897: 1893: 1892: 1883: 1862: 1841: 1839: 1838: 1833: 1831: 1830: 1829: 1828: 1819: 1803: 1802: 1790: 1789: 1770: 1768: 1767: 1762: 1757: 1756: 1752: 1739: 1738: 1710: 1708: 1707: 1702: 1700: 1699: 1698: 1694: 1693: 1691: 1690: 1678: 1673: 1665: 1650: 1649: 1595: 1593: 1592: 1587: 1582: 1580: 1579: 1567: 1559: 1551: 1546: 1544: 1543: 1531: 1526: 1518: 1506: 1504: 1503: 1498: 1480: 1478: 1477: 1472: 1467: 1446: 1444: 1443: 1438: 1436: 1435: 1414: 1400: 1399: 1390: 1342: 1340: 1339: 1334: 1332: 1325: 1324: 1289: 1288: 1253: 1252: 1206: 1204: 1203: 1198: 1196: 1189: 1187: 1186: 1174: 1173: 1168: 1164: 1162: 1151: 1144: 1119: 1115: 1114: 1106: 1093: 1091: 1080: 1051: 1049: 1048: 1043: 1041: 1040: 1036: 1020: 1018: 1017: 1016: 1012: 988: 964: 962: 961: 956: 937: 935: 934: 929: 927: 926: 871: 869: 868: 863: 858: 857: 808: 800: 692: 689: 671: 664: 655: 653: 652: 647: 635: 633: 632: 627: 625: 624: 605: 603: 602: 597: 592: 590: 582: 574: 572: 570: 553: 548: 547: 528: 526: 525: 520: 518: 517: 499:, sometimes the 491: 489: 488: 483: 457: 455: 454: 449: 407: 405: 404: 399: 384: 382: 381: 376: 356: 354: 353: 348: 334: 332: 331: 326: 309: 307: 306: 301: 280: 278: 277: 272: 181: 160: 159: 137: 130: 126: 59: 56: 50: 27: 19: 4884: 4883: 4879: 4878: 4877: 4875: 4874: 4873: 4844: 4843: 4842: 4837: 4775: 4690:audio and video 4675: 4642: 4574: 4511: 4439: 4420:Photomultiplier 4345: 4273: 4221:Quantum circuit 4129: 4123: 4065:Avalanche diode 4051: 3963: 3956: 3845: 3834: 3827: 3822: 3774: 3769: 3762: 3746: 3742: 3735: 3717: 3713: 3703: 3701: 3693: 3692: 3688: 3679: 3678: 3674: 3665: 3663: 3655: 3654: 3650: 3597: 3593: 3584: 3583: 3579: 3571: 3567: 3558: 3557: 3553: 3548: 3544: 3531:Patchell, Jim. 3529: 3525: 3512: 3511: 3507: 3491: 3487: 3478: 3477: 3473: 3465: 3461: 3452: 3451: 3447: 3438: 3437: 3433: 3426: 3412: 3408: 3398: 3396: 3374: 3370: 3362: 3358: 3343: 3339: 3323: 3322: 3310: 3296: 3295: 3288: 3272: 3271: 3259: 3243: 3236: 3226: 3224: 3215: 3214: 3210: 3194: 3193: 3181: 3167: 3166: 3162: 3154: 3147: 3141:Wayback Machine 3132: 3128: 3119: 3117: 3109: 3108: 3104: 3095: 3093: 3085: 3084: 3080: 3070: 3068: 3059: 3058: 3054: 3044: 3042: 3034: 3033: 3029: 3025: 2998: 2974:Michael Faraday 2970: 2953:inertial sensor 2904: 2890:current hogging 2879:thermal runaway 2861:lithium battery 2842:degaussing coil 2833: 2828: 2791: 2785: 2781: 2779: 2755: 2751: 2749: 2746: 2745: 2723: 2712: 2709: 2708: 2681: 2677: 2668: 2664: 2662: 2659: 2658: 2630: 2626: 2624: 2621: 2620: 2582: 2578: 2548: 2544: 2542: 2539: 2538: 2491: 2487: 2485: 2482: 2481: 2452:observer effect 2447: 2424: 2359: 2354:barium titanate 2346: 2305: 2301: 2287: 2284: 2283: 2267: 2264: 2263: 2245: 2242: 2241: 2223: 2220: 2219: 2201: 2198: 2197: 2179: 2176: 2175: 2126: 2123: 2122: 2098: 2094: 2084:conduction band 2079:charge carriers 2048: 2043: 2015: 2010: 2007: 2006: 1984: 1981: 1980: 1963: 1959: 1942: 1925: 1922: 1921: 1888: 1884: 1879: 1866: 1861: 1853: 1850: 1849: 1824: 1820: 1815: 1808: 1804: 1798: 1794: 1785: 1781: 1779: 1776: 1775: 1748: 1744: 1740: 1734: 1730: 1722: 1719: 1718: 1686: 1682: 1677: 1664: 1663: 1659: 1655: 1651: 1645: 1641: 1633: 1630: 1629: 1620: 1613: 1575: 1571: 1566: 1550: 1539: 1535: 1530: 1517: 1515: 1512: 1511: 1486: 1483: 1482: 1463: 1452: 1449: 1448: 1431: 1427: 1410: 1395: 1391: 1386: 1375: 1372: 1371: 1356: 1330: 1329: 1317: 1313: 1300: 1294: 1293: 1281: 1277: 1264: 1258: 1257: 1245: 1241: 1228: 1221: 1219: 1216: 1215: 1194: 1193: 1182: 1178: 1169: 1155: 1150: 1146: 1145: 1143: 1130: 1124: 1123: 1105: 1098: 1094: 1084: 1079: 1072: 1065: 1063: 1060: 1059: 1032: 1028: 1024: 1008: 1004: 1000: 992: 987: 973: 970: 969: 944: 941: 940: 922: 918: 904: 901: 900: 853: 849: 799: 797: 794: 793: 779: 773: 766: 746: 742: 733:), and nickel ( 719: 715: 693: 687: 684: 677:needs expansion 662: 641: 638: 637: 620: 616: 614: 611: 610: 583: 575: 573: 557: 552: 543: 539: 537: 534: 533: 513: 509: 507: 504: 503: 477: 474: 473: 443: 440: 439: 393: 390: 389: 370: 367: 366: 342: 339: 338: 317: 314: 313: 292: 289: 288: 247: 244: 243: 233: 231:Basic operation 192: 182: 157: 155: 140: 60: 54: 51: 44: 32:This article's 28: 17: 12: 11: 5: 4882: 4872: 4871: 4866: 4861: 4856: 4839: 4838: 4836: 4835: 4834: 4833: 4828: 4818: 4813: 4808: 4803: 4798: 4797: 4796: 4785: 4783: 4777: 4776: 4774: 4773: 4772: 4771: 4769:Wollaston wire 4761: 4756: 4751: 4746: 4741: 4736: 4735: 4734: 4729: 4719: 4714: 4709: 4704: 4703: 4702: 4697: 4692: 4683: 4681: 4677: 4676: 4674: 4673: 4668: 4663: 4662: 4661: 4650: 4648: 4644: 4643: 4641: 4640: 4635: 4630: 4625: 4620: 4615: 4610: 4605: 4600: 4595: 4590: 4584: 4582: 4576: 4575: 4573: 4572: 4567: 4562: 4557: 4552: 4550:Selectron tube 4547: 4542: 4540:Magic eye tube 4537: 4532: 4527: 4521: 4519: 4513: 4512: 4510: 4509: 4504: 4498: 4493: 4488: 4483: 4477: 4472: 4466: 4461: 4454: 4452: 4441: 4440: 4438: 4437: 4432: 4427: 4422: 4417: 4412: 4406: 4401: 4396: 4391: 4386: 4381: 4376: 4371: 4366: 4361: 4355: 4353: 4347: 4346: 4344: 4343: 4338: 4333: 4328: 4323: 4318: 4313: 4308: 4303: 4298: 4293: 4287: 4285: 4279: 4278: 4275: 4274: 4272: 4271: 4266: 4261: 4256: 4251: 4245: 4239: 4234: 4228: 4223: 4218: 4213: 4208: 4202: 4197: 4191: 4186: 4181: 4176: 4171: 4165: 4160: 4154: 4149: 4144: 4139: 4133: 4131: 4125: 4124: 4122: 4121: 4116: 4111: 4109:Schottky diode 4106: 4101: 4096: 4090: 4084: 4078: 4073: 4067: 4061: 4059: 4053: 4052: 4050: 4049: 4043: 4038: 4032: 4026: 4021: 4016: 4015: 4014: 4003: 4002: 4001: 3996: 3985: 3980: 3975: 3968: 3966: 3958: 3957: 3955: 3954: 3949: 3944: 3938: 3933: 3927: 3921: 3916: 3911: 3905: 3899: 3893: 3888: 3882: 3876: 3871: 3866: 3861: 3856: 3850: 3848: 3837: 3829: 3828: 3821: 3820: 3813: 3806: 3798: 3792: 3791: 3785: 3780: 3773: 3772:External links 3770: 3768: 3767: 3760: 3740: 3733: 3711: 3686: 3672: 3648: 3611:(12): 123002. 3591: 3577: 3565: 3551: 3542: 3523: 3518:Resistor Guide 3505: 3485: 3471: 3459: 3445: 3431: 3424: 3406: 3368: 3356: 3337: 3308: 3286: 3257: 3234: 3208: 3179: 3160: 3145: 3126: 3102: 3078: 3067:. EETech Media 3052: 3026: 3024: 3021: 3020: 3019: 3017:Stretch sensor 3014: 3009: 3004: 2997: 2994: 2978:silver sulfide 2969: 2966: 2965: 2964: 2960: 2956: 2949: 2946: 2943: 2936: 2929: 2922: 2919: 2912: 2908: 2903: 2900: 2899: 2898: 2894: 2886: 2875: 2871: 2864: 2857: 2850: 2846: 2838: 2832: 2829: 2827: 2824: 2815: 2814: 2803: 2797: 2794: 2788: 2784: 2778: 2775: 2772: 2769: 2766: 2763: 2758: 2754: 2730: 2726: 2722: 2719: 2716: 2701: 2700: 2689: 2684: 2680: 2676: 2671: 2667: 2633: 2629: 2605: 2604: 2593: 2590: 2585: 2581: 2577: 2574: 2571: 2568: 2565: 2562: 2559: 2556: 2551: 2547: 2520: 2519: 2508: 2505: 2502: 2499: 2494: 2490: 2446: 2443: 2422: 2357: 2345: 2342: 2326: 2325: 2311: 2308: 2304: 2300: 2297: 2294: 2291: 2271: 2261: 2249: 2239: 2227: 2217: 2205: 2195: 2183: 2169: 2168: 2157: 2154: 2151: 2148: 2145: 2142: 2139: 2136: 2133: 2130: 2096: 2092: 2067:semiconducting 2047: 2044: 2042: 2039: 2022: 2018: 2014: 1994: 1991: 1988: 1966: 1962: 1958: 1955: 1952: 1949: 1945: 1941: 1938: 1935: 1932: 1929: 1914: 1913: 1902: 1896: 1891: 1887: 1882: 1878: 1875: 1872: 1869: 1865: 1860: 1857: 1827: 1823: 1818: 1814: 1811: 1807: 1801: 1797: 1793: 1788: 1784: 1772: 1771: 1760: 1755: 1751: 1747: 1743: 1737: 1733: 1729: 1726: 1712: 1711: 1697: 1689: 1685: 1681: 1676: 1671: 1668: 1662: 1658: 1654: 1648: 1644: 1640: 1637: 1618: 1611: 1597: 1596: 1585: 1578: 1574: 1570: 1565: 1562: 1557: 1554: 1549: 1542: 1538: 1534: 1529: 1524: 1521: 1496: 1493: 1490: 1470: 1466: 1462: 1459: 1456: 1434: 1430: 1426: 1423: 1420: 1417: 1413: 1409: 1406: 1403: 1398: 1394: 1389: 1385: 1382: 1379: 1355: 1345: 1344: 1343: 1328: 1323: 1320: 1316: 1312: 1309: 1306: 1303: 1301: 1299: 1296: 1295: 1292: 1287: 1284: 1280: 1276: 1273: 1270: 1267: 1265: 1263: 1260: 1259: 1256: 1251: 1248: 1244: 1240: 1237: 1234: 1231: 1229: 1227: 1224: 1223: 1208: 1207: 1192: 1185: 1181: 1177: 1172: 1167: 1161: 1158: 1154: 1149: 1142: 1139: 1136: 1133: 1131: 1129: 1126: 1125: 1122: 1118: 1112: 1109: 1104: 1101: 1097: 1090: 1087: 1083: 1078: 1075: 1073: 1071: 1068: 1067: 1053: 1052: 1039: 1035: 1031: 1027: 1023: 1015: 1011: 1007: 1003: 998: 995: 991: 986: 983: 980: 977: 954: 951: 948: 925: 921: 917: 914: 911: 908: 873: 872: 861: 856: 852: 848: 845: 842: 839: 835: 832: 829: 826: 823: 820: 817: 814: 811: 806: 803: 775:Main article: 772: 769: 764: 761:lead titanates 744: 740: 717: 713: 695: 694: 674: 672: 661: 658: 645: 623: 619: 607: 606: 595: 589: 586: 581: 578: 569: 566: 563: 560: 556: 551: 546: 542: 516: 512: 481: 447: 397: 374: 363: 362: 357:, first-order 346: 336: 324: 321: 311: 299: 296: 282: 281: 270: 267: 264: 260: 257: 254: 251: 232: 229: 217: 216: 208: 191: 188: 185: 184: 174: 173: 167: 166: 161: 152: 151: 146: 142: 141: 138: 117:temperatures. 113:resistance at 101:resistance at 62: 61: 41:the key points 31: 29: 22: 15: 9: 6: 4: 3: 2: 4881: 4870: 4867: 4865: 4862: 4860: 4857: 4855: 4852: 4851: 4849: 4832: 4831:mercury relay 4829: 4827: 4824: 4823: 4822: 4819: 4817: 4814: 4812: 4809: 4807: 4804: 4802: 4799: 4795: 4792: 4791: 4790: 4787: 4786: 4784: 4782: 4778: 4770: 4767: 4766: 4765: 4762: 4760: 4757: 4755: 4752: 4750: 4747: 4745: 4742: 4740: 4737: 4733: 4730: 4728: 4725: 4724: 4723: 4720: 4718: 4715: 4713: 4710: 4708: 4705: 4701: 4698: 4696: 4693: 4691: 4688: 4687: 4685: 4684: 4682: 4678: 4672: 4669: 4667: 4664: 4660: 4657: 4656: 4655: 4654:Potentiometer 4652: 4651: 4649: 4645: 4639: 4636: 4634: 4631: 4629: 4626: 4624: 4621: 4619: 4616: 4614: 4611: 4609: 4606: 4604: 4601: 4599: 4596: 4594: 4591: 4589: 4586: 4585: 4583: 4581: 4577: 4571: 4570:Williams tube 4568: 4566: 4563: 4561: 4558: 4556: 4553: 4551: 4548: 4546: 4543: 4541: 4538: 4536: 4533: 4531: 4528: 4526: 4523: 4522: 4520: 4518: 4514: 4508: 4505: 4502: 4499: 4497: 4494: 4492: 4489: 4487: 4484: 4481: 4478: 4476: 4473: 4470: 4467: 4465: 4462: 4459: 4456: 4455: 4453: 4450: 4446: 4442: 4436: 4433: 4431: 4428: 4426: 4423: 4421: 4418: 4416: 4413: 4410: 4407: 4405: 4402: 4400: 4397: 4395: 4392: 4390: 4389:Fleming valve 4387: 4385: 4382: 4380: 4377: 4375: 4372: 4370: 4367: 4365: 4362: 4360: 4357: 4356: 4354: 4352: 4348: 4342: 4339: 4337: 4334: 4332: 4329: 4327: 4324: 4322: 4319: 4317: 4314: 4312: 4309: 4307: 4304: 4302: 4299: 4297: 4294: 4292: 4289: 4288: 4286: 4284: 4280: 4270: 4267: 4265: 4262: 4260: 4257: 4255: 4252: 4249: 4246: 4243: 4240: 4238: 4235: 4232: 4229: 4227: 4224: 4222: 4219: 4217: 4216:Photodetector 4214: 4212: 4209: 4206: 4203: 4201: 4198: 4195: 4192: 4190: 4187: 4185: 4184:Memtransistor 4182: 4180: 4177: 4175: 4172: 4169: 4166: 4164: 4161: 4158: 4155: 4153: 4150: 4148: 4145: 4143: 4140: 4138: 4135: 4134: 4132: 4126: 4120: 4117: 4115: 4112: 4110: 4107: 4105: 4102: 4100: 4097: 4094: 4091: 4088: 4085: 4082: 4079: 4077: 4074: 4071: 4068: 4066: 4063: 4062: 4060: 4058: 4054: 4047: 4044: 4042: 4039: 4036: 4033: 4030: 4027: 4025: 4022: 4020: 4017: 4013: 4010: 4009: 4007: 4004: 4000: 3997: 3995: 3992: 3991: 3989: 3986: 3984: 3981: 3979: 3976: 3973: 3970: 3969: 3967: 3965: 3959: 3953: 3950: 3948: 3945: 3942: 3939: 3937: 3934: 3931: 3928: 3925: 3922: 3920: 3917: 3915: 3912: 3909: 3906: 3903: 3900: 3897: 3894: 3892: 3889: 3886: 3883: 3880: 3877: 3875: 3872: 3870: 3867: 3865: 3862: 3860: 3857: 3855: 3852: 3851: 3849: 3847: 3841: 3838: 3836: 3833:Semiconductor 3830: 3826: 3819: 3814: 3812: 3807: 3805: 3800: 3799: 3796: 3789: 3786: 3784: 3781: 3779: 3776: 3775: 3763: 3761:9781606500569 3757: 3753: 3752: 3744: 3736: 3734:9780471627678 3730: 3726: 3722: 3715: 3700: 3696: 3690: 3682: 3676: 3662: 3658: 3652: 3644: 3640: 3636: 3632: 3628: 3624: 3619: 3614: 3610: 3606: 3602: 3595: 3587: 3581: 3575:. U.S. Sensor 3574: 3569: 3561: 3555: 3546: 3538: 3534: 3527: 3519: 3515: 3509: 3503: 3502:0-691-14966-6 3499: 3495: 3489: 3481: 3475: 3468: 3463: 3455: 3449: 3441: 3435: 3427: 3421: 3417: 3410: 3395: 3391: 3387: 3383: 3379: 3372: 3365: 3360: 3352: 3348: 3341: 3333: 3327: 3319: 3315: 3311: 3305: 3301: 3300: 3293: 3291: 3282: 3276: 3268: 3264: 3260: 3254: 3250: 3249: 3241: 3239: 3222: 3218: 3212: 3204: 3198: 3190: 3186: 3182: 3176: 3172: 3171: 3164: 3157: 3152: 3150: 3142: 3138: 3135: 3130: 3116: 3112: 3111:"Thermistors" 3106: 3092: 3088: 3082: 3071:September 13, 3066: 3062: 3056: 3041: 3037: 3031: 3027: 3018: 3015: 3013: 3010: 3008: 3005: 3003: 3000: 2999: 2993: 2991: 2985: 2983: 2979: 2975: 2961: 2957: 2954: 2950: 2947: 2944: 2941: 2937: 2934: 2930: 2927: 2923: 2920: 2917: 2913: 2909: 2906: 2905: 2895: 2891: 2887: 2884: 2880: 2876: 2872: 2869: 2865: 2862: 2858: 2855: 2851: 2847: 2843: 2839: 2835: 2834: 2823: 2819: 2801: 2795: 2792: 2786: 2782: 2776: 2770: 2764: 2761: 2756: 2752: 2744: 2743: 2742: 2728: 2724: 2720: 2717: 2714: 2706: 2687: 2682: 2678: 2674: 2669: 2665: 2657: 2656: 2655: 2653: 2649: 2631: 2627: 2618: 2614: 2610: 2591: 2583: 2579: 2575: 2569: 2563: 2557: 2554: 2549: 2545: 2537: 2536: 2535: 2533: 2529: 2525: 2506: 2503: 2500: 2497: 2492: 2488: 2480: 2479: 2478: 2475: 2473: 2469: 2465: 2461: 2457: 2453: 2442: 2440: 2435: 2433: 2429: 2419: 2415: 2411: 2407: 2403: 2398: 2395: 2389: 2385: 2383: 2378: 2375: 2371: 2367: 2363: 2362:ferroelectric 2355: 2351: 2341: 2339: 2334: 2332: 2309: 2306: 2302: 2298: 2295: 2292: 2289: 2269: 2262: 2247: 2240: 2225: 2218: 2203: 2196: 2181: 2174: 2173: 2172: 2155: 2152: 2149: 2146: 2143: 2140: 2137: 2134: 2131: 2128: 2121: 2120: 2119: 2116: 2114: 2110: 2106: 2102: 2090: 2086: 2085: 2080: 2076: 2072: 2068: 2064: 2057: 2052: 2038: 2036: 2020: 2016: 2012: 1992: 1989: 1986: 1960: 1956: 1953: 1950: 1947: 1943: 1939: 1936: 1933: 1930: 1927: 1919: 1900: 1885: 1880: 1876: 1870: 1867: 1863: 1858: 1855: 1848: 1847: 1846: 1843: 1825: 1821: 1816: 1812: 1809: 1805: 1799: 1795: 1791: 1782: 1758: 1753: 1749: 1745: 1741: 1731: 1727: 1724: 1717: 1716: 1715: 1695: 1687: 1683: 1679: 1674: 1669: 1666: 1660: 1656: 1652: 1646: 1642: 1638: 1635: 1628: 1627: 1626: 1624: 1617: 1610: 1606: 1602: 1583: 1576: 1572: 1568: 1563: 1560: 1555: 1552: 1547: 1540: 1536: 1532: 1527: 1522: 1519: 1510: 1509: 1508: 1494: 1491: 1488: 1468: 1464: 1460: 1457: 1454: 1432: 1428: 1424: 1421: 1415: 1411: 1407: 1401: 1396: 1392: 1387: 1383: 1380: 1377: 1369: 1365: 1361: 1353: 1349: 1326: 1321: 1318: 1314: 1310: 1307: 1304: 1302: 1297: 1290: 1285: 1282: 1278: 1274: 1271: 1268: 1266: 1261: 1254: 1249: 1246: 1242: 1238: 1235: 1232: 1230: 1225: 1214: 1213: 1212: 1190: 1183: 1179: 1175: 1170: 1165: 1159: 1156: 1152: 1147: 1140: 1137: 1134: 1132: 1127: 1120: 1116: 1110: 1107: 1102: 1099: 1095: 1088: 1085: 1081: 1076: 1074: 1069: 1058: 1057: 1056: 1037: 1033: 1029: 1025: 1021: 1013: 1009: 1005: 1001: 996: 993: 989: 984: 981: 978: 975: 968: 967: 966: 952: 949: 946: 923: 915: 912: 909: 898: 894: 890: 886: 882: 878: 859: 854: 846: 843: 840: 833: 830: 827: 824: 821: 818: 815: 812: 809: 804: 801: 792: 791: 790: 788: 784: 778: 768: 762: 758: 754: 749: 747: 736: 732: 728: 724: 720: 709: 705: 700: 691: 682: 678: 675:This section 673: 670: 666: 665: 657: 643: 621: 617: 593: 587: 584: 579: 576: 564: 558: 554: 549: 544: 540: 532: 531: 530: 514: 510: 502: 498: 493: 479: 471: 467: 463: 462: 445: 437: 433: 429: 425: 421: 417: 416: 411: 395: 386: 372: 360: 344: 337: 322: 312: 297: 287: 286: 285: 268: 265: 258: 255: 252: 242: 241: 240: 238: 228: 226: 221: 213: 209: 206: 201: 197: 196: 195: 180: 175: 172: 168: 165: 162: 153: 150: 147: 143: 136: 131: 125: 123: 118: 116: 112: 108: 104: 100: 96: 91: 89: 85: 81: 77: 73: 69: 58: 55:February 2022 48: 42: 40: 35: 30: 26: 21: 20: 4869:Thermometers 4748: 4588:Cold cathode 4555:Storage tube 4445:Vacuum tubes 4394:Neutron tube 4369:Beam tetrode 4351:Vacuum tubes 3936:Power MOSFET 3750: 3743: 3724: 3714: 3702:. Retrieved 3698: 3689: 3675: 3664:. Retrieved 3660: 3651: 3608: 3604: 3594: 3580: 3568: 3554: 3545: 3536: 3526: 3517: 3508: 3493: 3488: 3474: 3462: 3448: 3434: 3415: 3409: 3397:. Retrieved 3385: 3381: 3371: 3359: 3350: 3340: 3298: 3247: 3225:. Retrieved 3220: 3211: 3169: 3163: 3129: 3118:. Retrieved 3114: 3105: 3094:. Retrieved 3090: 3081: 3069:. Retrieved 3064: 3055: 3043:. Retrieved 3039: 3030: 3007:Thermocouple 2990:Samuel Ruben 2986: 2971: 2854:synthesizers 2826:Applications 2820: 2816: 2702: 2651: 2647: 2616: 2612: 2608: 2606: 2527: 2523: 2521: 2476: 2448: 2436: 2428:heat tracing 2399: 2390: 2386: 2381: 2379: 2352:(containing 2347: 2335: 2327: 2170: 2117: 2108: 2100: 2082: 2060: 2034: 1917: 1915: 1844: 1773: 1713: 1622: 1615: 1608: 1600: 1598: 1363: 1359: 1357: 1351: 1347: 1209: 1054: 896: 888: 884: 880: 876: 874: 780: 750: 701: 698: 685: 681:adding to it 676: 608: 500: 496: 494: 469: 465: 460: 435: 431: 427: 423: 419: 414: 387: 364: 283: 234: 222: 218: 211: 199: 193: 119: 114: 110: 106: 102: 98: 94: 92: 87: 83: 75: 67: 65: 52: 36: 34:lead section 4754:Transformer 4496:Sutton tube 4336:Charge pump 4189:Memory cell 4119:Zener diode 4081:Laser diode 3964:transistors 3846:transistors 3721:"Chapter 9" 3388:: 170–212. 2933:3D printers 2888:To prevent 2877:To prevent 2370:Curie point 2037:parameter. 763:(e.g. PbTiO 731:iron oxides 725:), cobalt ( 80:portmanteau 4848:Categories 4826:reed relay 4816:Parametron 4749:Thermistor 4727:resettable 4686:Connector 4647:Adjustable 4623:Nixie tube 4593:Crossatron 4560:Trochotron 4535:Iconoscope 4530:Charactron 4507:X-ray tube 4379:Compactron 4359:Acorn tube 4316:Buck–boost 4237:Solaristor 4099:Photodiode 4076:Gunn diode 4072:(CLD, CRD) 3854:Transistor 3666:2019-05-13 3618:1801.07297 3425:0408001682 3351:MacroScale 3267:1196195913 3120:2019-05-13 3096:2019-05-13 3023:References 2849:injection. 2460:variometer 2418:conductive 2406:Polyswitch 2394:degaussing 2329:0.01  704:iron group 470:thermistor 424:thermistor 128:Thermistor 76:thermistor 68:thermistor 4789:Capacitor 4633:Trigatron 4628:Thyratron 4618:Neon lamp 4545:Monoscope 4425:Phototube 4409:Pentagrid 4374:Barretter 4259:Trancitor 4254:Thyristor 4179:Memristor 4104:PIN diode 3881:(ChemFET) 3643:116232359 3326:cite book 3275:cite book 3197:cite book 3189:162128694 2992:in 1930. 2868:wax motor 2777:− 2705:Ohm's law 2576:− 2456:sailplane 2324:coulomb). 2307:− 2299:× 2150:⋅ 2144:⋅ 2138:⋅ 2105:electrons 1990:⁡ 1965:∞ 1957:⁡ 1931:⁡ 1890:∞ 1871:⁡ 1810:− 1787:∞ 1736:∞ 1675:− 1564:⁡ 1425:⁡ 1402:− 1319:− 1311:× 1283:− 1275:× 1247:− 1239:× 1103:− 1022:− 979:⁡ 950:⁡ 913:⁡ 844:⁡ 825:⁡ 757:strontium 729:), iron ( 688:June 2021 618:α 541:α 511:α 320:Δ 295:Δ 263:Δ 250:Δ 39:summarize 4811:Inductor 4781:Reactive 4759:Varistor 4739:Resistor 4717:Antifuse 4603:Ignitron 4598:Dekatron 4486:Klystron 4475:Gyrotron 4404:Nuvistor 4321:Split-pi 4207:(MOS IC) 4174:Memistor 3932:(MuGFET) 3926:(MOSFET) 3898:(FinFET) 3399:22 April 3318:56731934 3137:Archived 3045:24 April 2996:See also 2893:devices. 2707:we have 2382:silistor 2364:and its 2071:sintered 2065:chip of 436:silistor 428:posistor 410:positive 88:resistor 72:resistor 4864:Sensors 4712:Ferrite 4680:Passive 4671:Varicap 4659:digital 4608:Krytron 4430:Tetrode 4415:Pentode 4269:Varicap 4250:(3D IC) 4226:RF CMOS 4130:devices 3904:(FGMOS) 3835:devices 3704:24 June 3623:Bibcode 3065:EePower 2968:History 2897:needed. 2650:is the 2414:plastic 2402:polymer 2350:ceramic 2089:current 1625:yields 1605:kelvins 891:is the 239:, then 158:‍ 149:Passive 84:thermal 4744:Switch 4435:Triode 4399:Nonode 4364:Audion 4244:(SITh) 4128:Other 4095:(OLED) 4057:Diodes 4008:(LET) 3990:(FET) 3962:Other 3910:(IGBT) 3887:(CMOS) 3874:BioFET 3869:BiCMOS 3758:  3731:  3641:  3500:  3422:  3316:  3306:  3265:  3255:  3227:8 July 3187:  3177:  2982:silver 2607:where 2522:where 2466:for a 2410:carbon 2356:(BaTiO 2331:kelvin 2171:where 2109:p-type 2101:n-type 2075:oxides 2073:metal 1774:where 1607:, and 1055:where 895:, and 875:where 755:(Ba), 753:barium 284:where 237:linear 215:fuses. 115:higher 103:higher 4821:Relay 4794:types 4732:eFUSE 4503:(TWT) 4491:Maser 4482:(IOT) 4471:(CFA) 4460:(BWO) 4384:Diode 4331:SEPIC 4311:Boost 4264:TRIAC 4233:(SCR) 4196:(MOV) 4170:(LEC) 4089:(LED) 4048:(UJT) 4037:(SIT) 4031:(PUT) 3974:(BJT) 3943:(TFT) 3919:LDMOS 3914:ISFET 3639:S2CID 3613:arXiv 2468:relay 2464:timer 2421:BaTiO 2296:1.602 2113:holes 1370:with 759:, or 609:This 438:. If 426:, or 210:With 198:With 190:Types 78:is a 4764:Wire 4722:Fuse 4306:Buck 4159:(IC) 4147:DIAC 4083:(LD) 3952:UMOS 3947:VMOS 3864:PMOS 3859:NMOS 3844:MOS 3756:ISBN 3729:ISBN 3706:2014 3498:ISBN 3420:ISBN 3401:2022 3332:link 3314:OCLC 3304:ISBN 3281:link 3263:OCLC 3253:ISBN 3229:2024 3203:link 3185:OCLC 3175:ISBN 3073:2021 3047:2022 2437:The 2336:The 2063:cast 2005:vs. 1916:The 1481:and 1362:(or 1308:9.90 1272:2.37 1236:1.40 883:and 434:and 145:Type 111:more 99:less 86:and 4326:Ćuk 3631:doi 3390:doi 2916:ECU 2902:NTC 2859:In 2831:PTC 2439:IEC 2338:IEC 1350:or 767:). 735:NiO 727:CoO 723:MnO 708:CrO 683:. 466:NTC 420:PTC 408:is 388:If 212:PTC 200:NTC 82:of 4850:: 4700:RF 4449:RF 3723:. 3697:. 3659:. 3637:. 3629:. 3621:. 3609:27 3607:. 3603:. 3535:. 3516:. 3386:26 3384:. 3380:. 3349:. 3328:}} 3324:{{ 3312:. 3289:^ 3277:}} 3273:{{ 3261:. 3237:^ 3219:. 3199:}} 3195:{{ 3183:. 3148:^ 3113:. 3089:. 3063:. 3038:. 2619:, 2534:: 2474:. 2310:19 2303:10 1987:ln 1954:ln 1928:ln 1868:ln 1842:. 1561:ln 1507:, 1447:, 1422:ln 1315:10 1279:10 1243:10 976:ln 947:ln 910:ln 879:, 841:ln 822:ln 739:Ni 737:, 712:Cr 710:, 468:) 422:) 90:. 66:A 4451:) 4447:( 3817:e 3810:t 3803:v 3764:. 3737:. 3708:. 3683:. 3669:. 3645:. 3633:: 3625:: 3615:: 3588:. 3562:. 3539:. 3520:. 3482:. 3456:. 3442:. 3428:. 3403:. 3392:: 3353:. 3334:) 3320:. 3283:) 3269:. 3231:. 3205:) 3191:. 3123:. 3099:. 3075:. 3049:. 2955:. 2942:. 2856:. 2802:. 2796:R 2793:K 2787:2 2783:V 2774:) 2771:R 2768:( 2765:T 2762:= 2757:0 2753:T 2729:R 2725:/ 2721:V 2718:= 2715:I 2688:. 2683:T 2679:P 2675:= 2670:E 2666:P 2648:K 2632:0 2628:T 2617:R 2613:R 2611:( 2609:T 2592:, 2589:) 2584:0 2580:T 2573:) 2570:R 2567:( 2564:T 2561:( 2558:K 2555:= 2550:T 2546:P 2528:V 2524:I 2507:, 2504:V 2501:I 2498:= 2493:E 2489:P 2423:3 2358:3 2293:= 2290:e 2270:e 2248:v 2226:A 2204:n 2182:I 2156:, 2153:e 2147:v 2141:A 2135:n 2132:= 2129:I 2097:3 2095:O 2093:2 2035:B 2021:T 2017:/ 2013:1 1993:R 1961:r 1951:+ 1948:T 1944:/ 1940:B 1937:= 1934:R 1918:B 1901:. 1895:) 1886:r 1881:/ 1877:R 1874:( 1864:B 1859:= 1856:T 1826:0 1822:T 1817:/ 1813:B 1806:e 1800:0 1796:R 1792:= 1783:r 1759:, 1754:T 1750:/ 1746:B 1742:e 1732:r 1728:= 1725:R 1696:) 1688:0 1684:T 1680:1 1670:T 1667:1 1661:( 1657:B 1653:e 1647:0 1643:R 1639:= 1636:R 1623:R 1619:0 1616:T 1612:0 1609:R 1601:B 1584:, 1577:0 1573:R 1569:R 1556:B 1553:1 1548:+ 1541:0 1537:T 1533:1 1528:= 1523:T 1520:1 1495:0 1492:= 1489:c 1469:B 1465:/ 1461:1 1458:= 1455:b 1433:0 1429:R 1419:) 1416:B 1412:/ 1408:1 1405:( 1397:0 1393:T 1388:/ 1384:1 1381:= 1378:a 1364:β 1360:B 1352:β 1348:B 1327:. 1322:8 1305:= 1298:c 1291:, 1286:4 1269:= 1262:b 1255:, 1250:3 1233:= 1226:a 1191:. 1184:2 1180:y 1176:+ 1171:3 1166:) 1160:c 1157:3 1153:b 1148:( 1141:+ 1138:y 1135:= 1128:x 1121:, 1117:) 1111:T 1108:1 1100:a 1096:( 1089:c 1086:2 1082:1 1077:= 1070:y 1038:3 1034:/ 1030:1 1026:x 1014:3 1010:/ 1006:1 1002:x 997:c 994:3 990:b 985:= 982:R 953:R 924:2 920:) 916:R 907:( 897:R 889:T 885:c 881:b 877:a 860:, 855:3 851:) 847:R 838:( 834:c 831:+ 828:R 819:b 816:+ 813:a 810:= 805:T 802:1 765:3 745:3 743:O 741:2 718:3 716:O 714:2 690:) 686:( 644:a 622:T 594:. 588:T 585:d 580:R 577:d 568:) 565:T 562:( 559:R 555:1 550:= 545:T 515:T 497:k 480:k 464:( 446:k 418:( 396:k 373:k 361:. 345:k 323:T 298:R 269:, 266:T 259:k 256:= 253:R 207:. 57:) 53:( 43:.

Index


lead section
summarize
provide an accessible overview
resistor
portmanteau
self-regulating heating elements

Passive
Electric resistance
Electronic symbol

inrush current limiter
resistance temperature detectors
linear
temperature coefficient of resistance
positive
positive-temperature-coefficient
negative-temperature-coefficient

adding to it
iron group
CrO
Cr2O3
MnO
CoO
iron oxides
NiO
Ni2O3
barium

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