120-202EAD-Q03

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

NTC thermistors (Negative Temperature Coefficient) are heat-sensitive components that react to changes in temperature by varying their electrical resistance. The 120-202EAD-Q03 is an NTC thermistor specifically designed for temperature sensing applications. This thermistor offers an inexpensive and reliable solution for measuring and controlling temperature in environments where accuracy or precision is not critical.

Application Field

The 120-202EAD-Q03 thermistor is designed to be used for a wide range of temperature sensing applications. It is ideal for processes and systems that require temperature readings to be taken with minimal effort and expense. Some common applications include:

• Consumer electronics
• Industrial process control
• Environmental monitoring
• Occupancy sensing
• Medical equipment
• Various other industrial and consumer products

Working Principle

The 120-202EAD-Q03 thermistor works by changing its electrical resistance in response to changes in temperature. An NTC thermistor is a type of resistor where its resistance decreases with an increase in temperature. This means that if the thermistor is subjected to a higher temperature, its resistance will decrease, and if the temperature drops, its resistance will increase.

The resistivity of the 120-202EAD-Q03 thermistor is temperature-dependant and follows an exponential curve (the Steinhart-Hart equation), which makes it useful for temperature sensing applications. The resistance of the thermistor at any given temperature can be calculated using a comparison to a reference temperature and knowing the resistance at the reference temperature.

The 120-202EAD-Q03 thermistor is designed to be used in a voltage divider circuit. This is a simple electrical circuit commonly used to measure the voltage output of a component or system. In this circuit, the thermistor is connected in series with a resistor. When the voltage is applied across the circuit, the voltage across the thermistor is inversely proportional to its resistance. It is this voltage that can be used to calculate the resistance of the thermistor and, in turn, the temperature in the environment.

Conclusion

The 120-202EAD-Q03 thermistor is a reliable and inexpensive solution for temperature sensing applications. It reacts quickly and accurately to changes in temperature and can be used in a wide range of applications. Its resistance follows an exponential curve, which allows it to be used with a simple voltage divider circuit in order to measure the temperature of the surrounding environment.

The specific data is subject to PDF, and the above content is for reference