| Technical Data |
| Technical Data | ||||||||||||||||
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The following sections contain various data tables and technical information for Cornerstone Sensors NTC thermistors.
R/T Curve Characteristics and Manufacturing Tolerances Tables These tables list, in 5 °C increments, the resistance ratios, NTC’s, point match resistance tolerances, and interchangeable temperature tolerances for Cornerstone Sensors’ R/T curves.
1 °C Resistance Ratio vs. Temperature Tables These tables list the resistance ratio vs. temperature data in 1 °C increments for Cornerstone Sensors’ R/T curves. Resistance ratios are used to determine the resistance values of a thermistor at temperatures other than 25 °C. Contact the factory for R/T tables with increments other than 1 °C.
A, B, C Coefficients of the Steinhart-Hart Equation This table lists the A, B, C coefficients of the Steinhart-Hart equation for Cornerstone Sensors’ standard R/T curves. The accuracy of the data in the resistance ratio vs. temperature tables was optimized by calculating these coefficients for the specific temperature spans and resistance values shown in the table. For more information, click on Steinhart-Hart Equation here. Resistance Ratios and Beta Values Table This table lists R0/R70, R0/R50, and R25/R125 Resistance Ratios and Beta Values for the temperature ranges 0 °C to 50 °C, 25 °C to 85 °C, and 25 °C to 125 °C for Cornerstone Sensors’ standard R/T Curves. For additional information about these characteristics, click on Resistance/Temperature Ratio or Beta Value here. Dissipation Constant or Dissipation Factor For information about the dissipation constant (or dissipation factor) of a NTC thermistor, click on Dissipation Constant or Dissipation Factor here. Time Constant For information about the time constant of a NTC thermistor, click on Time Constant here. Terminology For further explanation of technical terms related to NTC thermistors, click on Terminology here. |