SHT21S Sensors, Transducers

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Sensor Type:	Humidity, Temperature
Humidity Range:	0 ~ 100% RH
Output Type:	SDM
Output:	12b
Accuracy:	±2% RH
Response Time:	8s
Sensitivity:	--
Voltage - Supply:	2.1V ~ 3.6V
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Package / Case:	6-TDFN Exposed Pad
Supplier Device Package:	6-DFN (3x3)

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Humidity, Moisture SensorsThe SHT21S is a small sensor that is primarily used to measure humidity and temperature levels in the environment. It is a common choice for home applications such as air conditioning, dehumidifiers, and other HVAC systems. The SHT21S is a digital sensor, which means that measurements are taken in a digital format rather than analog. This makes it easier to transfer data across long distances and helps eliminate errors.The SHT21S uses a thin film of plastic that absorbs water vapor to measure relative humidity. The relative humidity is the amount of water vapor converted to a percentage of the maximum amount the air can hold. When the relative humidity is high inside of an environment, a cooling system may need to be turned on or increased. When the relative humidity is low, it could mean that a humidifier may need to be turned on or increased.The SHT21S also measures temperature levels in the surrounding environment using thermoresistance. This is a type of heat transfer located on a chip that measures the temperature from heat resistance. This type of thermometry requires less energy to operate compared to other types and is very accurate and reliable.The SHT21S also has a very low power consumption rate, making it a great energy efficient choice for many applications. It is small in size so it can be easily used in tight spaces. The working range of the sensor is −40°C to +125°C for temperature and 0% to 100%RH for humidity measurement. This makes it a versatile device for many different applications.The SHT21S is simple to integrate into many different applications. It is very resistant to any type of dust, smoke, or dirt which makes it a great choice for heating, ventilation, and air conditioning applications that contain a lot of dust in the air. It also has an internal heater to help self-calibrate in different environments. This self-heating function helps to ensure an accurate reading even in harsh conditions.Overall, the SHT21S is a great tool to help measure and analyze the humidity and temperature levels in an environment. It is accurate, energy efficient, and reliable. It is easy to integrate into any type of application, making it a great choice for many applications.

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