2DB102K

Series:	--
Packaging:	Bulk
Part Status:	Active
Resistance in Ohms @ 25°C:	1k
Resistance Tolerance:	±10%
B Value Tolerance:	±3%
B0/50:	3445K
B25/50:	3485K
B25/75:	3512K
B25/85:	3521K
B25/100:	3532K
Operating Temperature:	-55°C ~ 150°C
Power - Max:	750mW
Length - Lead Wire:	0.98" (25.00mm)
Mounting Type:	Through Hole
Package / Case:	Disc, 5.1mm Dia x 0.6mm W

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Temperature Sensors - NTC Thermistors

NTC thermistors, or Negative Temperature Coefficient (NTC) Thermistors, are semiconductor resistors that generate a voltage or current dependent on the ambient temperature which is convenient for continuous temperature measurement. They are widely used in industries, automotive, and consumer applications. This article will discuss the 2DB102K application field and working principle.

Application Field

NTC thermistors are suitable for numerous applications due to their excellent temperature-sensing characteristics. These include temperature measurement and compensation in industrial machinery, electricity meters, pressure transducers, automotive air conditioning, electric hair-dryers, and medical equipment. Furthermore, because of their excellent linearity over narrow temperature ranges, NTC thermistors are ideal for applications where a high level of accuracy is needed such as in industrial process control systems.The 2DB102K thermistor, in particular, is a general-purpose temperature sensor primarily intended for use in a wide range of industrial, telecom, and consumer applications. Featuring an operating temperature range of -40 to +130 °C, and excellent linearity characteristics centered around -25 °C, the 2DB102K is a reliable temperature sensing component for many applications.

Working Principle

The working principle of NTC thermistors is rooted in the underlying characteristics of semiconductor materials. Under certain circumstances these materials can exhibit a change in their electrical characteristic when exposed to changes in temperature.In the case of the 2DB102K thermistor, a decrease in temperature leads to an increase in resistance. This change in resistance is proportional to the temperature change, thus enabling accurate temperature measurement. This behavior is explained by the Curie-Weiss law; when the temperature of the thermistor drops below its “Curie” temperature, the resistance of the device increases due to a decrease in the equilibrium number of charge carriers in the semiconductor material.

Conclusion

NTC thermistors provide an accurate and reliable temperature sensing solution for numerous industrial, automotive, and consumer applications. The 2DB102K thermistor, specifically, is a general purpose temperature sensor intended for use in a wide range of applications due to its linearity characteristics and operating temperature range of -40 to +130 °C. The working principle of the 2DB102K thermistor is rooted in the underlying characteristics of semiconductor material which cause it to change resistance in proportion to changes in temperature.

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