173-103LAD-301

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Temperature Sensors - NTC thermistors play an important role in temperature sensing and control. NTC thermistors are based on the relationship between the resistance of a material and its temperature, known as the temperature coefficient. The most common type of NTC thermistor is the 173-103LAD-301. This thermistor has a resistance of 100K at 25°C, and a temperature coefficient of -3.9%. It is used widely in temperature sensing and control applications.

The working principle of the 173-103LAD-301 thermistor is quite simple. In a closed circuit, the resistance of the thermistor will increase as the temperature rises and fall as the temperature drops. A voltage is applied across the thermistor, and the voltage drop across the thermistor is measured. This voltage drop can be used to calculate the resistance of the thermistor, and the resistance can be used to calculate the temperature.

In practice, the thermistor is connected in a number of ways depending on the application. In some cases, the thermistor may be used in a series circuit where the voltage is applied across the entire circuit. The resistance of the thermistor will be inversely proportional to the total current, so an increase in the temperature will cause a decrease in the total current. In other cases, the thermistor may be used in a parallel circuit to measure the temperature directly.

The most common application of the 173-103LAD-301 thermistor is in temperature sensing and control. For example, the thermistor can be used to detect changes in temperature in areas such as heating, ventilation, and air conditioning (HVAC) systems. The thermistor can also be used to regulate the temperature of the system, such as in water heaters. The thermistor can be used to activate a switch that turns the heating or cooling system on or off when the temperature reaches a certain level. In some cases, the thermistor may be connected to an alarm system to alert if the temperature rises or falls beyond a certain level.

The thermistor is also used in industrial applications, such as in ovens, boilers, and other processes that require precise temperature control. The thermistor can be used to measure and control the temperature of the process, or to shut down the process if the temperature reaches a certain threshold. The thermistor is also used in medical applications, such as in patient monitoring systems, to ensure that the patient’s temperature does not exceed a certain level.

The 173-103LAD-301 thermistor is widely used in a variety of applications due to its low cost, small size, and its ability to measure a wide range of temperatures. It is an essential component in any application where precise temperature sensing and control is required.

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