Series:	120
Packaging:	Bulk
Part Status:	Active
Resistance in Ohms @ 25°C:	100k
Resistance Tolerance:	±3%
B Value Tolerance:	--
B0/50:	--
B25/50:	--
B25/75:	--
B25/85:	--
B25/100:	--
Operating Temperature:	-60°C ~ 300°C
Length - Lead Wire:	1.25" (31.80mm)
Mounting Type:	Free Hanging
Package / Case:	Cylindrical Probe, Glass

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Temperature Sensors - NTC Thermistors

NTC thermistors are temperature sensors that respond to temperature changes by altering their electrical resistance. The resistance of thermistors drops as their temperature increases, making them ideal for precisely measuring temperatures. The 120-104KAE-Q01 is an example of an NTC thermistor.

Application Field

The 120-104KAE-Q01 thermistor is designed to measure a wide range of temperatures from -30 to 140° C. It is typically used to measure temperatures in air conditioning and refrigeration systems, where temperatures must be closely monitored. Additionally, the 120-104KAE-Q01 thermistor can be used in an water heater temperature control system, or in situations where temperature needs to be monitored or controlled in an area.

Working Principle

At the core of the 120-104KAE-Q01 thermistor is the sensing element, which is a ceramic material with a high electrical resistance. The resistance of the material changes depending on the temperature of the material. As the temperature increases, the resistance of the material decrease. This relationship between temperature and resistance allows the thermistor to accurately detect small differences in temperature.When the thermistor is connected to a measuring circuit, the current flow in the circuit will vary depending on the temperature. An increase in temperature results in a decrease in resistance, which allows the current to flow more freely. This change in current can then be used to measure the temperature.

Installation

The 120-104KAE-Q01 should be installed in a location where the temperature does not fluctuate greatly and is not exposed to direct sunlight, heat, or moisture. The thermistor should also be installed at least one foot away from any other electrical equipment that may cause interference with the signal from the thermistor. The location should also allow easy access to the thermistor in order to replace or adjust it when needed.

Conclusion

The 120-104KAE-Q01 is an NTC thermistor designed to measure temperatures from -30 to 140° C. Its sensing element is made of ceramic material with a high electrical resistance, which changes with the temperature. This change in resistance can be used to measure temperatures in various environments, such as air conditioning and refrigeration systems. The thermistor should be installed in a location that is free from extreme temperatures or direct sunlight, and at least one foot away from any other electrical equipment.

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