Temperature Stability of up to 300 °C

In the field of temperature measurement, there is a growing need for NTC sensors with faster response time, more compact dimensions and higher temperature stability. EPCOS offers a wide range of NTC devices with and without insulation.

The glass-encapsulated NTC temperature sensors from EPCOS are distinguished by their compact dimensions and very fast response times. The B57540G103F000 device with a head diameter of 0.9 mm max., for example, is suitable for extremely tight mounting spaces. Thanks to its low mass, it responds very quickly to temperature changes and ensures an accurate measurement even when these changes are very rapid. Another advantage of these glass-encapsulated NTC sensors is their high long-term stability.

The high temperature stability of up to 300 °C allows temperature measurement in situations beyond the capability of other technologies. The broad range of resistance values from 2 kÙ up to 1.4MÙ and tolerances beginning at ±0.1 K as well as the availability of several series in various dimensions and wire sizes allow customers to select the optimum NTC sensor for their requirements.

Innovation – Insulated Glass NTC Sensors
EPCOS recently began offering glass-encapsulated NTCs sensors with flexible electrical insulation (G541, G551 and G561 series). In addition to the advantages of the glassencapsulated NTC sensors already available for some time, these innovative devices offer an insulation of 500 VDC/1s in NaCl.

This guaranteed electrical strength eliminates the need for additional insulation, e.g. with Teflon tubes, thus simplifying manufacturing processes. This significantly reduces processing costs while also allowing solutions for very narrow spaces, such as in metal tube sensors.

Typical Applications
Glass-encapsulated NTC sensors are particularly well suited for applications in domestic appliances such as espresso makers, toasters, dryers and washing machines. Here, they help enhance comfort and save energy. Other applications include:

Sensors with tight Tolerances for Medical Applications
Temperature measurement in medical applications requires very fast response times and high accuracy, especially in the range of the the body temperature (37 °C). EPCOS has developed a series of especially designed insulated glass-encapsulated NTC temperature sensors in various sizes with a tolerance of ±0.1 K between 25 °C and 45 °C. Besides their high measurement accuracy, compact size (B57542G3103F000: head diameter of 1.4mm max.) and fast response times, their maximum operating temperature of 150 °C permits a reliable sterilization for clinical use.

Additional Information
For additional information regarding NTC sensors from EPCOS, please contact your local SPOERLE Branch Office or visit

www.epcos.com