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Version:V1.0 —— May 2021

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Product Summary

As a new generation of temperature and humidity sensors, AHT20 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 1.0mm.The sensor outputs

calibrated digital signals in standard IIC format.

AHT20 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. Its performance has been greatly improved or even

exceeded the reliability level of the previous generation of sensors. A generation of temperature and humidity sensors

have been improved to make their performance more stable in harsh environments.

Each sensor is calibrated and tested, and the product lot number is printed on the surface of the product. Due to

improvements and miniaturization of the sensor, it is more cost-effective, and ultimately all devices will benefit from

cutting-edge energy-saving operation modes.

Data Sheet AHT20

Humidity and Temperature Sensor

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Full calibration

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Digital output, I2C interface

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Excellent long-term stability

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SMD package suitable for reflow soldering

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Quick response and strong anti-jamming capability

1 Product Description

The AHT20 can be widely used in consumer electronics, medical, automotive, industrial, meteorological

and other fields, such as: HVAC, dehumidifiers and refrigerators and other home appliances, testing and

testing equipment and other related temperature and humidity detection and control products.

Figure 1. AHT20 Sensor Package Diagram (Unit: mm Tolerance: ±0.1 mm).