PT502J2

Series:	PT
Packaging:	Bulk
Part Status:	Active
Resistance in Ohms @ 25°C:	5k
Resistance Tolerance:	±0.2°C
B Value Tolerance:	--
B0/50:	3892K
B25/50:	--
B25/75:	--
B25/85:	--
B25/100:	--
Operating Temperature:	-80°C ~ 150°C
Power - Max:	30mW
Length - Lead Wire:	1.50" (38.00mm)
Mounting Type:	Free Hanging
Package / Case:	Bead, Epoxy

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     NTC thermistors, or negative temperature coefficient thermistors, are thermally sensitive resistor elements that are used in a wide variety of applications for precision temperature measurements and measurements of thermal energy. The PT502J2 is a thermistor type temperature sensor that is a reliable and cost-effective method for measuring both ambient and industrial temperatures.

PT502J2 Application Fields

     The PT502J2 is a sensitive and accurate temperature sensing device. It is used in consumer, automotive, industrial and environmental applications. It is particularly useful for applications where accuracy and reliability are important. Some of the key application fields for the PT502J2 are:

• Medical devices
• Automotive systems
• Fuel cells
• Industrial process control
• Heating, ventilation, and air conditioning (HVAC) systems
• Lighting control systems

PT502J2 Working Principle

     The PT502J2 is a thermistor-based temperature sensor. It is composed of a nickel-chrome thin-film resistor element and a ceramic body. The temperature-dependent resistance of the thermistor element is read by a voltage divider circuit that is connected to an analog-to-digital converter. The output of the converter is then read by a microcontroller.     When the temperature of the sensor environment changes, the resistance of the thermistor element changes linearly. This change in resistance is proportional to the temperature change. The voltage divider circuit measures the resistance variation and converts it into a voltage change which is proportional to the temperature change. This voltage is then digitized and sent to the microcontroller. The microcontroller calculates the temperature based on the voltage and sends it to the application software.

Conclusion

     The PT502J2 thermistor-type temperature sensor is a reliable and cost-effective device for measuring temperature in a wide range of applications from ambient to industrial temperatures. Its linear temperature-dependent resistance variation makes it an ideal solution for applications that require accurate and reliable temperature measurements. The PT502J2 is a common choice for automotive, medical and industrial applications, as well as for heating, ventilation, air conditioning (HVAC) systems, lighting controls, and fuel cells.

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