Thermistor and Types of Thermistor

         Thermistor or thermal resistor are thermal sensitive resistor. It means its resistance changes with temperature. This change in resistance character divides the Thermistor into two types, depending in the way it responds to the temperature.

  1. Positive Temperature Coefficient Thermistor. (PTC)
  2. Negative Temperature Coefficient Thermistor.(NTC)
PTC Thermistor

           In this type, resistance of resistance of the Thermistor increases with the increase in temperature. These Thermistors are usually made from Barium, Titanate.

NTC Thermistor

Thermistor characteristics 

                In this type, resistance of Thermistor decreases with increase in temperature. Thermistor are semiconductor component that behave as a resistor with usually, negative temperature coefficient of resistance. In some cases, resistance of a Thermistor at room temperature may decrease to 5 percent for each one degree Celsius rise in temperature.

Construction of Thermistor coming soon at next post.


Read some related posts:


Thermocouple with Circuit
The Thermocouple is explained with
circuit Diagram in this post

Temperature Measurement using thermocouple:
How Temperature is measured using the thermocouple
and what are the basic things

Construction of thermistor and types of Thermistor
construction and types of thermistor with neat
examples and circuit diagram

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