New Ametherm Online Calculators Help Designers Quickly Determine Thermistor Beta, Temperature Coefficient, and Resistance Temperature

CARSON CITY, Nev. — Aug. 21, 2017 — Ametherm today introduced a new calculators page to its website. Offering a convenient and time-saving resource, the online calculators allow design engineers to quickly determine the beta value of NTC thermistors, in addition to their temperature coefficient and resistance temperature characteristics using the Steinhart-Hart Equation.

A thermistor’s beta value indicates the shape of the curve representing the relationship between the device’s resistance and temperature. Beta value is used to calculate temperature coefficient of the thermistor, which in turn, is used in calculating the temperature accuracy of the thermistor.

The temperature coefficient of a thermistor is used when calculating its tolerance in terms of temperature. With Ametherm’s Temperature Coefficient (Alpha) Calculator, designers can determine the tolerance at any temperature for any given beta value. With the Steinhart-Hart Calculator, the temperature for any given resistance can be calculated using coefficients based on three measurements — low-, mid-, and high-temperature.

Link to calculators page on Ametherm website:

Link to calculator page screen shot:


About Ametherm
Ametherm, headquartered in Carson City, Nevada, was founded in 1994 and specializes in thermistors for temperature sensing and inrush current limiting in industrial, automotive, AMS (avionics, military and space) and many other markets. Ametherm’s devices are some of the highest rated in the industry and are available in customized versions to meet the needs of specific applications. For more information, visit or call 800-808-2434.




Agency Contact:

Bob Decker


+1 415 409 0233

Ametherm Contact:

Lori Morton


+1 775 884 2434



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