As an important part of the automotive cooling system, water temperature sensor plays a vital role in monitoring the operating status of the engine and ensuring engine safety. As a key component of automotive water temperature sensor, NTC thermistor is responsible for real-time monitoring of temperature changes of engine coolant to ensure that the engine works within the appropriate temperature range, improving its efficiency and prolonging its service life.

Water temperature sensor mainly uses the characteristics of the resistance value of the NTC thermistor to change negatively proportional to the temperature to monitor the operating temperature of the engine when it is running. As the engine coolant temperature rises, the resistance value of the NTC decreases; After the resistance value is converted into an electrical signal through the signal processing circuit, the electronic control unit (ECU) processes the information and then outputs the command to the automotive instrument panel, so that the driver can know the engine temperature at any time.

Why set an NTC thermistor in a water temperature sensor? This is to improve the safety of the engine and ensure the safety of life and property. Without the assistance of thermistor, when the engine coolant temperature is too low, it will affect the combustion efficiency and power performance of the engine; When the engine coolant temperature is too high, it can cause the engine to overheat, which can lead to serious failures. Therefore, NTC thermistor is required for real-time temperature monitoring to ensure that the engine is operating at the optimal temperature.

Considering that the water temperature sensor has been in a high-temperature working environment for a long time, EXSENSE Electronics Technology Co., Ltd. recommends the high-temperature resistant automotive NTC thermistor produced by our company for the water temperature sensor. Combined with other components, the NTC can effectively realize real-time monitoring and adjustment of engine water temperature, so as to adapt to continuous temperature measurement in long-term high temperature environments. In addition, automotive thermistor has a fast response speed, which is able to react quickly when the engine temperature changes, ensuring a high sensitivity of the engine control system. NTC thermistor for automobile also has the characteristic of high accuracy, which enables accurate monitoring of engine temperature and reduces errors.