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FAQ
We have compiled a list of common questions and their answers to provide you with quick and helpful information.
An NTC thermistor is a resistive component based on NTC materials and is typically the core element of an NTC temperature sensor. An NTC temperature sensor refers to the entire temperature sensing device, which includes the NTC thermistor along with related circuits and enclosures.
The resistance of an NTC thermistor decreases with increasing temperature, while the resistance of a PTC (Positive Temperature Coefficient) thermistor increases with increasing temperature. They exhibit different resistance characteristics within their respective temperature ranges and are suitable for different applications.
Selecting the appropriate NTC thermistor or NTC temperature sensor involves considering various factors such as the temperature range of the application environment, temperature measurement accuracy requirements, response time, size, and cost. It is recommended to refer to product specifications, seek guidance from suppliers, or consult with professional engineers for accurate selection advice.
The B-value (B-constant) of an NTC thermistor is a parameter that describes its resistance-temperature characteristics. It indicates the rate of change of the thermistor’s resistance temperature coefficient over 1°C change in temperature at the reference point. A higher B-value corresponds to a steeper resistance-temperature curve of the NTC thermistor.
Yes, temperature can be directly measured using an NTC thermistor. By incorporating the NTC thermistor as a sensing element and constructing an appropriate circuit to measure the resistance value, temperature information can be derived using the known resistance-temperature relationship curve.
The stability of NTC thermistors depends on manufacturing processes and material quality. High-quality thermistors often exhibit better long-term stability and minimal drift. It is recommended to choose reliable suppliers and products with a good reputation. If higher stability requirements are needed, resistance calibration or selecting higher precision products can be considered.
