TC77-3.3MOA

Temperature Sensors – Analog and Digital Output

The TC77-3.3MOA temperature sensor is an analog and digital output sensor engineered to measure the temperature of a variety of materials with high accuracy. This type of temperature sensor utilizes a bridge circuit configured with an NTC thermistor to generate a stable output voltage signal for monitoring and control applications. This sensor is designed with integral over-temperature protection for enhanced safety of the system in which it is installed.

Operating Principle of The TC77-3.3MOA

The TC77-3.3MOA is designed with a bridge configuration of three thermistors. This bridge creates an alternating current (AC) circuit which generates a voltage signal when exposed to the varying temperature of an environment. This voltage signal can be measured with a resistance readout instrument and converted into a temperature reading.

To ensure accuracy, the TC77-3.3MOA utilizes the Wheatstone Bridge Principle to generate an output signal that is proportional to the temperature. This principle studies the change in resistance of two arms of the bridge as it is heated or cooled. The middle arm of the bridge contains a thermistor and its resistance decreases when the surrounding temperature from the external environment increases. The resistance of the two other arms remain constant. This changing resistance in the middle arm of the bridge affects the ratio of voltage drop in the other two arms, resulting in an output voltage signal that is proportional to the surrounding temperature.

Application of The TC77-3.3MOA

The TC77-3.3MOA temperature sensor can be used in a variety of applications such as automotive, HVAC, medical, and industrial applications. Automotive applications include engine sensors to measure the temperature of the coolant and air intake, and chassis sensors used for safety and comfort features. The TC77-3.3MOA can also be used to measure temperature in medical devices, commercial HVAC systems, and industrial sensors used in process control and monitoring.

The TC77-3.3MOA can also be used to measure the temperature of solids and liquids as well. This type of sensor has an accuracy of ±0.1ºC and is designed to operate in temperatures ranging from −40°C to 125°C. By having a temperature range of -40°C to 125°C, this sensor can be used in environments with extreme temperatures.

Conclusion

The TC77-3.3MOA sensor is a versatile temperature sensor designed for a variety of applications. This analog/digital output sensor utilizes a Wheatstone bridge principle to generate an output voltage signal that corresponds to the temperature of its environment. With a temperature range of -40°C to 125°C and an accuracy of ±0.1ºC, the TC77-3.3MOA makes for an ideal choice in a variety of automotive, HVAC, medical, and industrial applications.