This datasheet details the specifications, electrical characteristics, and application guidelines for the AOSONG AHT20 SMD humidity and temperature sensor.
The AOSONG AHT20 is a next-generation humidity and temperature sensor featuring a 3x3mm SMD package and a digital I2C interface. It utilizes a dedicated ASIC chip and improved MEMS capacitive sensing elements to provide high precision and long-term stability. The sensor is designed for applications in consumer electronics, medical devices, automotive systems, and industrial environments. This manual is written in Chinese.
The sensor can withstand a maximum soldering temperature of 260°C, though a lower temperature of 180°C is recommended.
The sensor must be stored at room temperature (25°C) with humidity greater than 75% RH for 12 to 72 hours.
The host MCU should supply a voltage range of 2.2V to 5.5V to the sensor.