B57861S0202F040

Series:	B57861S
Packaging:	Bulk
Part Status:	Active
Resistance in Ohms @ 25°C:	2k
Resistance Tolerance:	±1%
B Value Tolerance:	±1%
B0/50:	--
B25/50:	--
B25/75:	--
B25/85:	--
B25/100:	3560K
Operating Temperature:	-55°C ~ 155°C
Power - Max:	60mW
Length - Lead Wire:	1.48" (37.50mm)
Mounting Type:	Free Hanging
Package / Case:	Bead

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Temperature Sensors - NTC Thermistors

NTC thermistors are a type of temperature sensor that utilize the temperature-sensitivity of a specific material to measure temperature. The B57861S0202F040 is a type of NTC thermistor that operates with a specific resistance range. This article discusses the application fields and the working principle of the B57861S0202F040, as well as its benefits and limitations.

Application Fields

The B57861S0202F040 is a versatile temperature sensor known for its accuracy. It is a popular choice for many applications, including industrial and consumer electronics, automotive systems, medical instruments, power supplies and lighting. In particular, the B57861S0202F040 is well-suited for temperature monitoring and control applications, where accurate temperature measurements are required.

Working Principle

The B57861S0202F040 utilizes an NTC thermistor, which is a specific type of temperature-sensing material. An NTC thermistor is a semiconductor device that has a positive temperature coefficient, meaning that as the temperature increases, the resistance of the device decreases. This unique characteristic of the thermistor allows it to be used as a temperature sensor, since the resistance of the device can be used to measure and monitor temperature. When the B57861S0202F040 is used as a temperature sensor, it is connected to a circuit that includes a power source and a current-limiting resistor. The thermistor is then inserted into the environment being monitored, and the circuit measures the amount of current passing through the device. The resistance of the thermistor is then used to calculate the temperature of the environment using a look-up table.

Benefits and Limitations

The B57861S0202F040 has several benefits, which make it an ideal choice for many temperature-measurement applications. First, the accuracy of the thermistor is very high, which makes it suitable for precision temperature measurements. Second, the device has a low self-heating component, meaning that it can accurately measure temperatures without the need for any additional components or external power sources. Finally, the thermistor is also very cost-effective, which allows it to be used in a wide variety of temperature-sensing applications. However, the B57861S0202F040 also has some limitations that need to be considered. First, the thermistor does not respond quickly to changes in temperature, which means that it may not be the best choice for applications that require rapid temperature response. Second, the thermistor is not suitable for applications that require very high temperatures, as the device may be damaged due to excessive heat. Finally, the thermistor requires some form of calibration in order to ensure accurate temperature measurements, which can add additional cost.

Conclusion

The B57861S0202F040 is a versatile and accurate NTC thermistor that is well-suited for many temperature-sensing applications. Its high accuracy and low cost make it an ideal choice for applications where accurate temperature measurements are required. However, its limited temperature range and slow response time may make it unsuitable for some applications.

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