AHT20

Digital humidity and temperature sensor combines a MEMS capacitive humidity element, an on-chip temperature sensor, and calibrated digital output. The device operates from a 2.2 V to 5.5 V supply and communicates over a standard I2C interface at address 0x38. It measures 0% to 100% RH with typical ±2% RH accuracy and -40 °C to 85 °C with typical ±0.3 °C temperature accuracy. The two-row SMD package has a 3 mm by 3 mm footprint and 1.0 mm height for reflow soldering.

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About AHT20

The Guangzhou Aosong Electronics AHT20 Sensors Transducers datasheet provides detailed technical specifications, pinout information, and operating characteristics. This component: Digital humidity and temperature sensor combines a MEMS capacitive humidity element, an on-chip temperature sensor, and calibrated digital output. The device operates from a 2.2 V to 5.5 V supply and communicates over a standard I2C interface at address 0x38. It measures 0% to 100% RH with typical ±2% RH accuracy and -40 °C to 85 °C with typical ±0.3 °C temperature accuracy. The two-row SMD package has a 3 mm by 3 mm footprint and 1.0 mm height for reflow soldering.. Key parameters include Humidity Accuracy: ±2 typical at 25 °C%RH, Humidity Hysteresis: ±1 typical%RH, Humidity Long-Term Drift: <1%RH/yr, Humidity Measurement Range: 0 to 100%RH, and Humidity Repeatability: ±0.1 typical%RH. AHT20 is manufactured by Guangzhou Aosong Electronics as part of their Sensors Transducers product line. On this page you can view and download the PDF datasheet, check specifications, and find similar components.

Specifications

Manufacturer
Guangzhou Aosong Electronics
Category
Sensors Transducers
File Size
1 MB

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Parameters

Humidity Accuracy±2 typical at 25 °C%RH
Humidity Hysteresis±1 typical%RH
Humidity Long-Term Drift<1%RH/yr
Humidity Measurement Range0 to 100%RH
Humidity Repeatability±0.1 typical%RH
Humidity Resolution0.024 typical%RH
Humidity Response Time8 typical, τ63%s
I2C Address0x38
Output InterfaceI2C
Package Dimensions3 x 3 x 1.0mm
Sensor TypeHumidity and temperature
Supply Voltage2.2 to 5.5V
Temperature Accuracy±0.3 typical°C
Temperature Measurement Range-40 to 85°C
Temperature Repeatability±0.1 typical°C
Temperature Resolution0.01 typical°C
Temperature Response Time5 to 30, τ63%s