PT203J2

Series:	PT
Packaging:	Bulk
Part Status:	Active
Resistance in Ohms @ 25°C:	20k
Resistance Tolerance:	±0.2°C
B Value Tolerance:	--
B0/50:	3892K
B25/50:	--
B25/75:	--
B25/85:	--
B25/100:	--
Operating Temperature:	120°C
Power - Max:	30mW
Length - Lead Wire:	1.50" (38.00mm)
Mounting Type:	Free Hanging
Package / Case:	Bead, Epoxy

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PT203J2 Temperature Sensors - NTC Thermistors

Thermistors are unique types of temperature sensors that have specific electrical resistance properties that change with temperature. This characteristic makes them ideal for sensing temperature in a range of diverse applications. The PT203J2 thermistor is a type of NTC thermistor – a negative temperature coefficient – that has become a popular choice for measuring temperatures in a variety of applications.

What is a PT203J2 Thermistor?

The PT203J2 is a small NTC thermistor manufactured by DYF. It is shaped in a cylindrical form which is 4 mm in diameter and it is 50 µm thick. Its resistance in 25°C is 10K (± 10 %) and it features a negative resistance coefficient. The thermistor also has an operating temperature range from –55°C to 150°C. Moreover, it has a relative humidity range of from 0 % to 95 %. All these features make it very reliable in a variety of applications.

Applications of PT203J2 Thermistors

The PT203J2 thermistor can be used in a variety of applications ranging from automotive to industrial automation.

Automotive Systems

The PT203J2 thermistor can be used in automotive systems to accurately measure the temperature of oil, fuel, and coolants. Additionally, it can also be used to measure engine temperatures. These thermistors help maintain optimal performance and temperature of automotive systems.

Industrial Automation

The PT203J2 is also used in industrial automation processes as it is able to measure the temperature of hazardous, flammable, and corrosive substances. It can also be used to sense the temperature of food and pharmaceutical products. Furthermore, the thermistor is also able to measure temperatures in chemical plants and oil refineries.

Medical Equipment

The PT203J2 thermistor is used in medical equipment like climate control systems and monitoring devices associated with patient care. It is also used in MRI and X-ray machines as well as in medical-grade refrigerators and freezers.

Working Principle of PT203J2 Thermistors

The working principle of PT203J2 thermistors is based on the principle of changing electrical resistance with temperature. The resistance of the thermistor is inversely proportional to the temperature – that is, when the temperature increases, its resistance decreases. This is due to the thermistor’s semiconductor material, which has a negative temperature coefficient. This means that when the temperature increases, the electrons in the semiconductor material have more energy, which causes them to move about more quickly. This leads to a decrease in the number of collisions between electrons and atoms, resulting in a decrease in resistance. The PT203J2 thermistor reads the temperature changes by detecting the strength of an electrical current being passed through it. This current is either maintained at a constant value or is allowed to vary. When the temperature changes, the resistance of the thermistor also changes, leading to a corresponding change in the electrical current. This change in current is then measured and used to determine the temperature.

Conclusion

PT203J2 thermistors are reliable and accurate temperature sensors that can be used in a wide variety of applications. They are able to measure the temperature of hazardous, flammable, and corrosive substances. They can also be used to measure the temperatures of automotive systems, industrial automation processes, and medical equipment. This thermistor works by using the principle of changing electrical resistance with temperature. Thus, the PT203J2 thermistor is an essential tool for accurately measuring a wide range of temperatures in diverse applications.

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