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:	500mW
Length - Lead Wire:	0.98" (25.00mm)
Mounting Type:	Through Hole
Package / Case:	Disc, 2.5mm Dia x 1.5mm W

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Temperature Sensors - NTC Thermistors

NTC thermistors, or Negative Temperature Coefficient thermistors, are a type of temperature sensors that measure temperature using the thermistor’s property of resisting electric current. When an electrical current is passed through an NTC thermistor, its resistance lowers in proportion to the temperature. Temperature sensors like the NTC thermistor make it possible for accurate and wide-range temperature measuring, which are especially useful for applications in industries such as automotive, chemical, and environmental monitoring.

What is 1DB102K?

1DB102K is a type of NTC thermistor. It is a 100K ohm thermistor, the resistance ratio being 100K @ 25°C with a Beta of 3950K. 1DB102K and similar NTC thermistors also have a Negative Temperature Coefficient which describes how much the resistance of the thermistor changes as temperatures increase. The 1DB102K has a NTC of -4100 ppm/K, meaning the resistance decreases as the temperature increases by 4100 parts-per-million per degree Kelvin. This low-cost thermistor has a wide operating temperature range from -40°C to 125°C.

1DB102K’s Applications and Working Principles

Since its operating temperature range is from -40°C to 125°C, 1DB102K is commonly used for applications in industries such as energy-saving, automotive, chemical, and environmental monitoring. For example, it can be used for temperature control in HVAC systems, or for detection of hot and cold spots in industrial manufacturing processes.The working principles of 1DB102K and other NTC thermistors can be broken down into a few simple steps. The NTC thermistor is electrically conductive and made of semiconductor material which becomes increasingly more conductive as temperatures increase. It is usually connected to a voltage source and current is allowed to flow through the thermistor. As the temperature increases, the resistance of the thermistor decreases. This change in resistance is detected and then converted into an electrical signal which is then further interpreted to accurately measure the temperature.

Conclusion

NTC thermistors like the 1DB102K enable accurate temperature measurements with a wide operating temperature range for different applications in industries such as automotive, chemical, and environmental monitoring. The thermistor works based on the principle of resistance which changes with temperature, providing reliable temperature readings for control and monitoring purposes.

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