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    1. Technologies
    2. Test & Measurement

    Keeping Tabs on Temperature with NTC Thermistors

    Sept. 12, 2023
    Conor Bujeaux, Senior Product Engineer at Ametherm, talks about negative temperature coefficient (NTC) thermistors and the company’s new PANR Series.
    Related To: Electronic Design

    Check out our Sensors Converge 2023 coverage.

    The Internet of Things (IoT) ushered in the growth of sensors that track everything from the number of steps we take when walking to how much CO2 is in the air. Temperature sensors are right there in the mix, and negative temperature coefficient (NTC) thermistors offer one way to obtain that temperature information. NTC thermistors are used in many applications from medical to automotive systems.

    Ametherm provides a range of NTC thermistors along with other temperature-sensing solutions. I talked with Conor Bujeaux, Senior Product Engineer at Ametherm, about the company’s PANR Series of NTC thermistor probes (see the video above).

    The PANR Series consists of highly efficient NTC thermistor temperature sensors with a fast response time (see figure). The compact sensors come with ring lug terminals, making them easy to secure on surfaces. They’re available in many different housings and lead wire gauges.

    Ametherm
    Ametherm’s PANR Series of NTC thermistor probes provides ring lug terminals that are easy to secure to mounting surfaces.
    Ametherm’s PANR Series of NTC thermistor probes provides ring lug terminals that are easy to secure to mounting surfaces.

    The sensors support isolation voltage to 5 kV with a resistance at 25°C from 10 to 250 kΩ. They have a dissipation constant of 3 mW/°C and a thermal time constant of 40.0 sec. Beta runs from 3,000 K to 4,500 K, and the maximum power requirement is only 125 mW. Other series are available with different mounting styles.

    The Steinhart-Hart equation is used to convert the output of the sensor to temperature. This can easily be implemented in even the smallest microcontroller, enabling developers to incorporate temperature sensors into their applications.

    Check out more of our Sensors Converge 2023 coverage.

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    About the Author

    William G. Wong | Senior Content Director - Electronic Design and Microwaves & RF

    I am Editor of Electronic Design focusing on embedded, software, and systems. As Senior Content Director, I also manage Microwaves & RF and I work with a great team of editors to provide engineers, programmers, developers and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.

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    I earned a Bachelor of Electrical Engineering at the Georgia Institute of Technology and a Masters in Computer Science from Rutgers University. I still do a bit of programming using everything from C and C++ to Rust and Ada/SPARK. I do a bit of PHP programming for Drupal websites. I have posted a few Drupal modules.  

    I still get a hand on software and electronic hardware. Some of this can be found on our Kit Close-Up video series. You can also see me on many of our TechXchange Talk videos. I am interested in a range of projects from robotics to artificial intelligence. 

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