PTC-NTC PDF – What is a Thermistor ?

Part Number: PTC-NTC

Function: Thermistor

Package: Surface Mounting Type

Manufacturer: Murata

Images:PTC-NTC pdf


A thermistor is a type of temperature sensor that exhibits a change in resistance with variations in temperature. The name “thermistor” is a combination of “thermal” and “resistor,” reflecting its fundamental characteristic of responding to changes in temperature by altering its electrical resistance.

Thermistors are made from semiconductor materials, typically ceramics or polymers with added metallic oxides. There are two primary types of thermistors based on their resistance-temperature characteristics:

1. Negative Temperature Coefficient (NTC) Thermistor: NTC thermistors exhibit a decrease in resistance as temperature increases. In other words, their resistance decreases as the temperature rises. NTC thermistors are the most common type and are widely used for temperature sensing and compensation in a variety of applications.

2. Positive Temperature Coefficient (PTC) Thermistor: PTC thermistors, on the other hand, experience an increase in resistance as temperature rises. This means their resistance increases as the temperature goes up. PTC thermistors are used in specific applications, such as overcurrent protection and self-regulating heating elements.

Thermally Sensitive Resistor:

1. NTC : Negative Temperature Coefficient

2. PTC : Positive Temperature Coefficient


PTC-NTC datasheet


1. Temperature monitoring and control systems

2. Thermal protection in electronics and power systems

3. Temperature compensation in electronic circuits

4. Environmental monitoring and climate control

5. Medical devices and health monitoring equipment

PTC-NTC PDF Datasheet