AHT21 - Humidity and Temperature Sensor

General Description

HVAC, dehumidiﬁer, testing and inspection equipment, consumer products, automobiles, automatic control, data loggers, weather stations, home appliances, humidity control, medical and other related temperature and humidity detection and control.

Figure 1.

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AHT21 humidity and temperature sensor by ASAIR - Datasheet Preview

Datasheet Details

Part number	AHT21
Manufacturer	ASAIR
File Size	0.97 MB
Description	Humidity and Temperature Sensor
Datasheet	AHT21 Datasheet

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Data Sheet AHT21 Humidity and Temperature Sensor •Full calibration •Digital output, I2C interface •Excellent long-term stability •SMD package suitable for reﬂow soldering •Quick response and strong anti-jamming capability Product Summary As a new generation of temperature and humidity sensors, AHT21 sets a new standard in terms of size and performance: a two-row ﬂat pin less SMD package suitable for reﬂow soldering, bottom face 3x3mm, height 0.8mm.The sensor outputs calibrated digital signals in standard IIC format. AHT21 is equipped with a newly designed ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensor element and a standard on-chip temperature sensor element.