Medical NTC thermistor aimed at sensing small body temperature changes

17-10-2022 | Variohm | Test & Measurement

Variohm EuroSensor has developed a new NTC thermistor particularly created for medical equipment use and specifically aimed at sensing small temperature changes in the body and ambient medical area temperatures. With its high resistance design (2.25kOhm @25C), the ENTC-EB-2.2k3977-005 provides maximum sensitivity and a fast response time in the temperature range of 32C to 42C where its resistance tolerance of +/-0.05C is ideal for high specification instrumentation and where temperature sensing, control and compensation are crucial factors.

The new thermistor is encapsulated in a brown Stycast thermally conductive epoxy coating, and electrical interfacing is through two 76mm, 32AWG solid Alloy 180 leads. Its miniature form, measuring only 2.4mm at the tip, will suit straightforward integration into all types of medical probes and in pharma and medical equipment. The sensor provides a full operating temperature range of -40C to 125C.

The thermistor is part of a wide variety of temperature measurement devices available from the company, including many other NTC and RTD thermistors, temperature probes, transducers, disposable medical probes, Hi-Rel and space-qualified thermistors, temperature switches, thermocouples and more.

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By Seb Springall