B57891M0224J000

Series:	--
Packaging:	Bulk
Part Status:	Active
Resistance in Ohms @ 25°C:	220k
Resistance Tolerance:	±5%
B Value Tolerance:	±3%
B0/50:	--
B25/50:	--
B25/75:	--
B25/85:	--
B25/100:	4600K
Operating Temperature:	-40°C ~ 125°C
Power - Max:	200mW
Length - Lead Wire:	1.42" (36.00mm)
Mounting Type:	Through Hole
Package / Case:	Disc, 3.5mm Dia x 3.5mm W

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Temperature Sensors - NTC Thermistors

Thermistors are temperature sensors made from a semiconducting ceramic material that exhibit a high degree of non-linear resistance over a wide range of temperatures. NTC (Negative Temperature Coefficient) thermistors are the most commonly used thermistors. The B57891M0224J000 is an example of an NTC thermistor.

Application Field

Due to their temperature-variable properties, NTC thermistors can be used for a wide range of applications. These include temperature compensation in circuitry, automotive engine temperature sensing, thermoregulated pumps and valves, wind turbine temperature control, plus temperature measurement in medical and industrial devices.The B57891M0224J000 specifically has an incredibly precise measuring unit for temperature, making it most suitable for demanding industrial applications. This thermistor has a linear temperature coefficient of -3950 ppm/K and a tight tolerance of 1%. It has also been optimized for high-accuracy temperature sensing in outdoor and remote locations, making it a great option for many environmental monitoring projects.

Working Principle

The working principle of NTC thermistors is based on the thermoelectric effect. This effect occurs when an electrical current passes through a semiconducting material with a non-linear temperature coefficient. This causes a change in the electrical resistance of the material, which is directly proportional to its temperature.The B57891M0224J000 thermistor is a variation of an NTC thermistor. It features a two-component ceramic disc consisting of a temperature-sensitive inner layer and a temperature-insensitive outer layer. This two-component design allows for a much greater accuracy of temperature measurement than a single-component thermistor.When this thermistor is connected to a power source, an electrical current passes through it and generates an output voltage which is proportional to the ambient temperature. This output is measured and converted into a digital signal, which can then be used to control a variety of temperature-sensitive systems.

Conclusion

In conclusion, NTC thermistors like the B57891M0224J000 have an important role in a wide range of temperature sensors. This thermistor has a unique two-component design which provides exceptionally high levels of accuracy for temperature measurement. It is most commonly used in demanding industrial applications such as outdoor and remote monitoring, temperature compensation, and automotive engine temperature control.

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