Series:	Automotive, AEC-Q200, ERTJ
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance in Ohms @ 25°C:	100k
Resistance Tolerance:	±2%
B Value Tolerance:	±1%
B0/50:	--
B25/50:	4700K
B25/75:	--
B25/85:	4750K
B25/100:	--
Operating Temperature:	-40°C ~ 150°C
Power - Max:	66mW
Length - Lead Wire:	--
Mounting Type:	Surface Mount
Package / Case:	0402 (1005 Metric)

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NTC Thermistors and the ERT-J0EV104GM

Temperature sensing is a fundamental requirement in many applications, from personal technology to industrial and commercial settings. In order to meet the requirements set forth by the application, an appropriate sensor must be chosen. NTC thermistors, in particular, have the advantages of being very accurate and highly repeatable in comparison to other temperature sensing methods. The ERT-J0EV104GM is one such NTC thermistor, and it is essential to understand its application field and working principle when considering whether it is the right fit for a temperature sensing job.

Application Field of the ERT-J0EV104GM

The ERT-J0EV104GM is an NTC thermistor that has been designed for general purpose use. This means it is suitable for a variety of applications, in particular where wide temperature ranges or sustained high temperatures may be encountered. This thermistor can be used in many different systems where temperature sensing is required, such as HVAC, refrigeration, and control systems. Due to its small size and low cost, the ERT-J0EV104GM is an attractive option for use in consumer electronics, automotive, and aviation applications.

Working Principle of the ERT-J0EV104GM

The ERT-J0EV104GM operates by measuring the temperature based on the resistance of the thermistor material. This thermistor is constructed of a ceramic material with a small amount of thermistor material added, which enables the thermistor to change resistance in response to a change in temperature. The thermistor exhibits a negative temperature coefficient (NTC), meaning that its resistance decreases with an increase in temperature. The ERT-J0EV104GM is designed to have a resistance of 10 kOhm at 25° C. As the temperature increases, its resistance decreases, and conversely as the temperature decreases, its resistance increases. This means that, for the thermistor to be effective, the resistance of the thermistor must be measured accurately at different temperatures. This is done by measuring the voltage at a fixed current across the thermistor, as this will give a value for the resistance.

Conclusion

The ERT-J0EV104GM is a versatile and reliable NTC thermistor, suitable for a variety of temperature sensing applications. Its small size and low cost make it a viable option for many applications in consumer electronics, automotive, and aviation. It is important to understand the fundamentals of how the thermistor works in order to ensure accuracy and reliability when using it. By understanding its application field and working principle this thermistor can be chosen as the right fit for a temperature sensing job.

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