Difference between NTC thermistor and PTC thermistor | NTC thermistor vs PTC thermistor

This page compares NTC thermistor vs PTC thermistor and mentions difference between NTC thermistor and PTC thermistor.

Introduction:
• A thermistor is semiconductor device whose resistance changes based on temperature change.
• It is also referred as thermal resistor.
• They are available in various sizes and shapes such as rod, disc and bead shaped.

NTC Thermistor

• NTC stands for Negative Temperature Coefficient.
• In NTC thermistor, resistance decreases as its temperature increases as shown in the figure.
• NTC thermistors are made using oxides of nickel, cobalt, copper, manganese and other materials.
• They are mainly employed for temperature control and measurement applications.
• NTC thermistors are used for temperature range from -55oC to 200oC.
• Example: SMD KT series NTC thermistor chips manufactured by ATC Semitec Limited

NTC thermistor vs PTC thermistor,difference between NTC thermistor and PTC thermistor

PTC Thermistor

• PTC stands for Positive Temperature Coefficient.
• In PTC thermistor, resistance increases as its temperature increases as shown in the figure.
• PTC thermistors are made using barium titanate.
• They are used to protect electronic circuits from high temperatures.
• PTC thermistors are used for temperature range from 0oC to 200oC.
• Example: SMD PTC thermistors (TPM series) manufactured by ATC Semitec Limited used as thermal switches

Also refer thermistor basics and manufacturers >> and difference between Thermocouple vs RTD vs thermistor >> for more information.


Advantages and Disadvantages of other Sensor Types

Capacitive    Inductive    Photoelectric    Ultrasonic    Infrared    Motion    Biometric    Force    Humidity    Temperature    Light    Barometer    Sound    pH    Soil Moisture   


Different Types of sensors and Transducers


What is Difference between

difference between OFDM and OFDMA
Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD
FDMA vs TDMA vs CDMA
FDM vs TDM
CDMA vs GSM


RF and Wireless Terminologies