PS502J2

Series:	PS
Packaging:	Bulk
Part Status:	Active
Resistance in Ohms @ 25°C:	5k
Resistance Tolerance:	±0.1°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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Temperature Sensors - NTC Thermistors

Temperature sensors come in a variety of shapes and sizes, all of which are designed to detect and measure temperature. NTC thermistors are one type of temperature sensing elements, which are widely used due to their simplicity, reliability and accuracy. PS502J2 is one of these thermistors and it can be used for a wide range of applications.

What is a NTC Thermistor?

NTC thermistors are made from semiconductor materials with a negative temperature coefficient of resistance; meaning that as temperature increases, their resistance value decreases. In more technical terms, NTC thermistors are nonlinear, two-terminal, solid-state thermometric devices that are actively used in temperature sensing systems. A distinguishing feature of NTC thermistors is that the shape of the resistance-temperature curve (R/T curve) can be adjusted precisely by using varying compositions and processing resulting in various temperature sensitivities. This provides more options and flexibility for applications, which may require different sensitivities.

Features of PS502J2

The PS502J2 is a small size, low cost, low power NTC thermistor chip. It features a small size of(2.4x3.2mm ) as well as a high accuracy of ±1°C. A further benefit of this thermistor is the wide operating temperature range from -40 to 125°C. It is also one of the most reliable thermistors available on the market.

Application Fields and Working Principle

The PS502J2 is suitable for a variety of temperature sensing applications from home appliances to automotive applications. In these applications, the NTC thermistor functions as a temperature sensing element, which is connected to a controller. When the temperature changes, the resistance of the thermistor changes as well. As a result, the current flowing through the circuit will change. The controller can interpret this change in current to calculate the temperature and make adjustments accordingly. In home appliances, the PS502J2 NTC thermistor may be used to sense the temperature in a refrigerator, air conditioner, microwave oven or washing machine. In automotive applications, the thermistor may be used for engine control and temperature monitoring.

Conclusion

The PS502J2 NTC thermistor provides an accurate and reliable way of sensing temperature. With its wide temperature range and high accuracy, the thermistor is suitable for a variety of applications including home appliances and automotive applications. It is easy to install and requires very little power to operate.

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