The AHT40 is a new temperature and humidity sensor offering significant advantages of low power consumption and high accuracy. It features a dual-in-line, flat, leadless SMD package suitable for reflow soldering, with a robust yet compact housing that easily integrates into challenging designs. Equipped with a newly optimized ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensing element, and a standard on-chip temperature sensing element, the sensor delivers significantly enhanced performance while maintaining stability even in harsh environments. The AHT40 temperature and humidity sensor helps reduce power consumption in application devices, offering high cost-effectiveness. It is particularly suitable for mass production by companies with strict cost control requirements and a strong emphasis on quality.







AHT40 Temperature and Humidity Sensor
- Fully calibrated
- Digital output, I2C interface
- Excellent long-term stability
- Good responsive, Interference resistance