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Engineering Reference Materials for Thermistor Schematic
  • What is a Thermistor?

    Thermistors What is a thermistor? A thermistor is a temperature-sensing element composed of sintered semiconductor material which exhibits a large change in resistance proportional to a small change in temperature. Thermistors usually have negative temperature coefficients which means

  • Thermistor Terminology

    ZERO-POWER RESISTANCE The zero-power resistance is the dc resistance value of a thermistor measured at a specified temperature with power dissipated by the thermistor low enough that any further decrease in power will result in not more than 0.1% (or one tenth of the specified measurement tolerance

  • Thermistor Glossary

    Current-time characteristic: The current-time characteristic is the relationship at a specified ambient temperature between the current through a thermistor and time, upon the application or interruption of voltage to it. Dissipation constant (D.C. or delta ): The dissipation constant is the ratio

  • NTC Thermistor Application Guide

    thermistors are the most sensitive of all temperature sensing elements they are popular in temperature control systems. By using a thermistor in a voltage comparator circuit basic on-off temperature control as well as over-temperature protection can be incorporated. Temperature compensation Many

  • The Truth About Thermistors

    Thermistors were so named by Bell Telephone Laboratories and the name is a contraction for thermal resistors. They are resistors with a high temperature coefficient of resistance and their resistance is a function of absolute temperature. Thermistors are not new. They have been known for about 160

  • NTC Thermistor with a Voltage Comparator

    How to interface a thermistor with a voltage comparator

Discussions about Thermistor Schematic
  • Re: What's this component?

    I found one site that has the symbol of an MOV and a Thermistor. http://www.angelfire.com/electronic2/rch/schematic.html Also why does this device have pin numbers polarity? Seems strange an MOV and a Thermistor do not have polarity!

  • Re: What's this component?

    Thanks for the reply Mike, I have to correct those who say these are MOV's, they are NOT, they are a polymer PTC thermistor. An MOV is a clamping device, it clamps the voltage if it exceeds a certain level. These devices are more of a current "clamp", as the current through them rises, they hea...

  • Re: Resistive Current Limiter

    Are you still using this basic schematic? Did you set up the shorting contactor like I suggested back in October? If so, the current limiting resistor need only be in the circuit between the 240V input and the top terminal of Variac #2, basically just to limit the inrush through the portion of wi...

  • Re: Inrush Current

    No schematic (but what a great tool that would be for this forum...). But it isn't that difficult. Wire up a timer to the line power so that it comes on immedaitely when power is applied and a NO contact closes to another larger contactor (35A) coil after 1 second; the magnetizing inrush will be shr...

  • Re: What's This Component?

    Hi Mikerho, On searching I found this similar drawing, is a thermistor, and another drawing this time with the short horizontal line at the bottom-left, is a Varistor. It would make sense to combine these as a surge protection perhaps only accepting current from the electronics to the...

  • Re: Motor Thermistor

    Mikerho, The schematic you posted is for a BLDC motor drive, not an AC VFD; different applications. The apparent thermistors shown in there are likely "Current Limiting" thermistors; a completely different application. In that case, they use the NTC versions because when the drive is first powere...

News about Thermistor Schematic
  • Stretchable Graphene Thermistor with Tunable Thermal Index

    ACS NanoDOI: 10.1021/nn507441c

  • 4017 & 555 Police LED Lights Project (noob question)

    hello, i am assigned to create a physical project starting from the schematics on the left side. my teacher told me that the schematic is incomplete, so the first step is to corect it and then use pads and then send the gerber files to a company to create it. i started reserching it and every schem

  • A New Gustometer for Taste Testing in Rodents

    In recent years, to circumvent the interpretive limitations associated with intake tests commonly used to assess taste function in rodents, investigators have developed devices called gustometers to deliver small volumes of taste samples and measure immediate responses, thereby increasing confidence that the behavior of the animal is under orosensory control. Most of these gustometers can be used to measure unconditioned licking behavior to stimuli presented for short durations and/or can be used to train the animal to respond to various fluid stimuli differentially so as to obtain a reward and/or avoid punishment. Psychometric sensitivity and discrimination functions can thus be derived. Here, we describe a new gustometer design, successfully used in behavioral experiments, that was guided by our experience with an older version used for over 2 decades. The new computer-controlled gustometer features no dead space in stimulus delivery lines, effective cleaning of the licking substrate, and the ability to measure licking without passing electrical current through the animal. The parts and dimensions are detailed, and the benefits and limitations of certain design features are discussed. Schematics for key circuits are provided as supplemental information. Accordingly, it should be possible to fabricate this device in a fashion customized for one’s needs.

  • 7 Pin Connector to Where?

    Hi, I am recently making a drawing for a schematics. I was asked to use a 7 pin connector which connects to power with a bunch of components on a tracker, such as brakes, lights, etc. Can anyone give me a full list of these typical components that I can get more idea of where the 7 pin connector le

  • Z-Schematic Water Splitting into H2 and O2 Using Metal Sulfide as a Hydrogen-Evolving Photocatalyst and Reduced Graphene Oxide as a Solid-State Electron Mediator

    Journal of the American Chemical SocietyDOI: 10.1021/ja511615s

Product Announcements for Thermistor Schematic
Thermik Corporation
PTC Thermistors - Highest Quality

Thermik thermistors correspond to DIN 4408, DIN 44082 and IEC 34-11-2, and exhibit a very high temperature sensitivity. The resistance increases strongly in the area of the rated response temperature. This change can be used to switch off the load circuit through a triggering device. Electronic evaluations of many different applications are also possible. Advantages: Small dimensions. Fast response times. Mechanical stability. Temperature-resistance-characteristic-curves individually made...

Digi-Sense Thermistor Meters

Digi-Sense Mini-Thermistor

Thermik Corporation
Thermistor Sensor -- LTM

Thermik thermistors correspond to DIN 4408, DIN 44082 and IEC 34-11-2, and exhibit a very high temperature sensitivity. The resistance increases strongly in the area of the rated response temperature. This change can be used to switch off the load circuit through a triggering device. Electronic evaluations of many different applications are also possible. The typical characteristics of Thermik thermistors are presented in the temperature resistance diagram. Advantages: Small dimensions. Fast...