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<h2>What is a Thermistor?</h2><p>A Thermistor is a temperature sensing element comprised of a mix of metal and metal oxide semiconductor materials. Thermistors normally have negative temperature coefficients in which the thermistor&rsquo;s resistance decreases as the Thermistor&rsquo;s temperature increases. Hence they derive their name due to being &lsquo;Thermal Resistors&rsquo;.</p><p>Thermistors are a cost-effective alternative to sensors for measuring temperature and still work with a high degree of accuracy. They come in different shapes such as, disk, bead, rod, or chip usually encapsulated in epoxy resin, paint, glassed or phenolic and can be mounted or fixed into the system needing monitoring. You can discover more in our <a href="/web/content/discovery/ideas-and-advice/thermistors-guide">thermistors guide</a>.</p><h3>How does a Thermistor work?</h3><p>A thermistor does not measure and display temperature conventionally like other temperature sensing devices, instead the resistance of a thermistor changes with temperature.</p><p>The amount of change in resistance is dependent on the detecting material used in the thermistor and the media being measured. Requiring the measurement of a solid, liquid, or gas usually dictates what the optimal material for the job is.</p><p>A temperature controller is used to monitor the temperature of the Thermistor and sends a signal to a heater or cooler to regulate the temperature of the sensor.</p><p>While the main use of Thermistors are as resistive temperature sensors, they can also be connected in series with another component or device to control an electrical current flowing through them.</p><h3>Type of Thermistors</h3><p>NTC (Negative Temperature Coefficient) Thermistors &ndash; NTC Thermistors decrease resistance as temperature rises. An NTC is commonly used as a temperature sensor, or in series with a circuit as an inrush current limiter.</p><p>PTC (Positive Temperature Coefficient) Thermistors &ndash; PTC Thermistors increase resistance as temperature rises. PTC thermistors are commonly installed in series with a circuit, and used as resettable fuses to protect against overcurrent conditions.</p><h3>Applications of Thermistors</h3><p>Due to the versatility and effectiveness of Thermistors, they are used in many temperature sensing applications such as:</p><ul><li>Digital Thermometers</li><li>Cars to measure oil and coolant</li><li>Ovens</li><li>Refrigerators</li><li>Heating or Cooling protection circuits</li></ul><p>Browse the broad range of Thermistors RS have to offer and order today for next day delivery.</p>

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Thermistors | RS

Thermistors

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Sensors Thermistors | RS

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ptc | RS

<p>PTC is used in a wide range of industrial and commercial applications. PTC is one of the most common types of Thermistors used in industry today. They are a popular choice as they last longer, function better, and are incredibly accurate.</p><p>RS offer an extensive selection of high-quality PTC from industry-leading brands including Carel, Electrotherm, Eliwell, EPCOS, Hanna Instruments.</p><h2>How does PTC work?</h2><p>PTC stands for &quot;Positive Temperature Coefficient&quot; which means that the resistance increases with rising temperatures. This effect can be used to protect circuits or devices against overcurrents. PTCs are effective for this cause as the overcurrent brings the PTC to a high temperature, thus a high resistance occurs which then limits the overcurrent. When the source for the overcurrent is removed, the PTC will cool down to function once again as a semiconductor. Applications for PTC include</p><ul><li>Self-Regulating Heaters</li><li>Overcurrent Protection</li><li>Motor Starters</li><li>Liquid Level Sensors</li><li>Time Delay</li></ul><p>PTC Thermistors possess some key features including</p><ul><li>Extremely long life</li><li>High efficiency</li><li>Low power requirements</li><li>Easy to install and maintain</li><li>Safe and convenient</li></ul><p>Browse the broad range of PTC RS have to offer and order today for next day delivery</p>

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PTC Thermistor | RS

<p>PTC Thermistors are used in a wide range of industrial and commercial applications. PTC Thermistors are one of the most common types of Thermistors used in industry today. They are a popular choice as they last longer, function better, and are incredibly accurate.</p><p>RS offer an extensive selection of high-quality PTC Thermistors from industry-leading brands including Carel, Electrotherm, Eliwell, EPCOS, Hanna Instruments.</p><h2>How does a PTC Thermistor work?</h2><p>PTC stands for &quot;Positive Temperature Coefficient&quot; which means that the resistance increases with rising temperatures. This effect can be used to protect circuits or devices against overcurrents. PTC Thermistors are effective for this cause as the overcurrent brings the PTC Thermistor to a high temperature, thus a high resistance occurs which then limits the overcurrent. When the source for the overcurrent is removed, the PTC Thermistor will cool down to function once again as a semiconductor. Applications for PTC Thermistors include</p><ul><li>Self-Regulating Heaters</li><li>Overcurrent Protection</li><li>Motor Starters</li><li>Liquid Level Sensors</li><li>Time Delay</li></ul><p>PTC Thermistors possess some key features including</p><ul><li>Extremely long life</li><li>High efficiency</li><li>Low power requirements</li><li>Easy to install and maintain</li><li>Safe and convenient</li></ul><p>Browse the broad range of PTC Thermistors RS have to offer and order today for next day delivery</p>

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Temp Sensor | RS

<p>Temp Sensors are used in a wide range of industrial and commercial applications. Temp Sensors are one of the most common types of Thermistors used in industry today. They are a popular choice as they last longer, function better, and are incredibly accurate.</p><p>RS offer an extensive selection of high-quality Temp Sensors from industry-leading brands including Amphenol, Carel, EPCOS & TE Connectivity</p><h2>How does a Temp Sensor work?</h2><p> Temp Sensors, in the form of Thermistors, use resistance to detect temperature. Resistance increases and decreases with changes with temperature dependant on the type of Temp Sensor being used. The amount of change in resistance is dependent on the detecting material used in the thermistor and the media being measured. A Temp Sensor is used to monitor the temperature of the Thermistor and sends a signal to a heater or cooler to regulate the temperature of the sensor. Applications for Temp Sensors include</p><ul><li>Digital Thermometers</li><li>Overcurrent Protection</li><li>Motor Starters</li><li>Household Appliances</li><li>HVAC Refrigeration</li></ul><p>Temp Sensors possess some key features including</p><ul><li>Extremely long life</li><li>High efficiency</li><li>Low power requirements</li><li>Easy to install and maintain</li><li>Safe and convenient</li></ul><p>Browse the broad range of Temp Sensors RS have to offer and order today for next day delivery</p>

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Temperature Sensor | RS

<p>Temperature Sensors are used in a wide range of industrial and commercial applications. Temperature Sensors are one of the most common types of Thermistors used in industry today. They are a popular choice as they last longer, function better, and are incredibly accurate.</p><p>RS offer an extensive selection of high-quality Temperature Sensors from industry-leading brands including Amphenol, Carel, Correge, Electrotherm, Eliwell, EPCOS, Hanna Instruments, Laird Connectivity, TE Connectivity & Testo</p><h2>How does a Temperature Sensor work?</h2><p>Temperature Sensors, in the form of Thermistors, use resistance to detect temperature in which resistance increases or decreases with changes with temperature dependant on the type of Temperature Sensor being used. The amount of change in resistance is dependent on the detecting material used in the thermistor and the media being measured. A temperature sensor is used to monitor the temperature of the Thermistor and sends a signal to a heater or cooler to regulate the temperature of the sensor. Applications for Temperature Sensors include</p><ul><li>Digital Thermometers</li><li>Overcurrent Protection</li><li>Motor Starters</li><li>Household Appliances</li><li>HVAC Refrigeration</li></ul><p>Temperature Sensors possess some key features including</p><ul><li>Extremely long life</li><li>High efficiency</li><li>Low power requirements</li><li>Easy to install and maintain</li><li>Safe and convenient</li></ul><p>Browse the broad range of Temperature Sensors RS have to offer and order today for next day delivery</p>

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PTC Thermistor

How does a PTC Thermistor work?

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