Temperature sensors are used for a broad range of applications throughout many industries. In the automation and control gear category, Temperature Sensors PTC Thermistors are used to provide input to a system to accurately determine the temperature of a particular object. They are mainly designed to measure the amount of ambient heat energy. There are various types of temperature sensors, all used for similar purposes but in different ways.
What is a PTC Thermistor?
PTC stands for Positive Temperature Coefficient. A positive temperature coefficient means that the resistance increases when the temperature increases. PTC thermistors are mainly divided into two categories based on the material utilized, the structure, and the manufacturing process.
Silistors
The first group of Temperature Sensors PTC Thermistors, consists of silistors that utilize silicon as the semiconducting material. They work well as PTC thermistors because of their linear characteristics.
Switching Type
The other one is the switching type PTC thermistor. The switching type PTC thermistor has a high non-linear resistance-temperature curve. When this type of thermistor is heated initially, the resistance will decrease until it reaches a certain critical temperature. As the temperature goes above that critical level, the resistance increases enormously. They are widely used in PTC heaters, sensors, etc.
Characteristics of PTC Thermistors
- Transition temperature
- Minimum resistance
- Rated resistance
- Dissipation constant
- Maximum rated current
Applications of PTC Thermistors
There are many applications of Temperature Sensors PTC Thermistors in industrial, commercial, and domestic settings. Some of the crucial ones include the following:
- Self-regulating heaters
- Over-current protection
- Time delay
- Motor starting
- Liquid level sensing
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Enrgtech offers an extensive range of affordable and high-quality products. We check the items in-house to make sure they meet your quality expectations. Our products are priced reasonably, and we always ensure that they are delivered on time to your doorsteps. We also offer great customer services, and the process of purchase is very smooth and easy.