Sensirion has introduced the new digital automotive sensor SHT4xA that is based on Sensirion’s CMOSens Technology and meets the most demanding reliability requirements, such as accelerated lifetime tests at 85°C / 85 %RH. Specifically designed for automotive applications, this sensor is available in different accuracy classes with an I2C or pulse width modulation interface and an integrated heater that enables chip self-diagnostics throughout its operating life.
This sensor features an operating voltage range of 2.3 to 5.5 V and accuracy tolerances down to ±2 %RH and ±0.2°C which is achieved over the full measurement range of 0%RH to 100%RH and from -40°C to 125°C. Moreover, optional protection options using an applied membrane or protective film provide splash water protection or facilitate processing during production.
Key Features
- Relative humidity accuracy: up to ±2 %RH
- Temperature accuracy: up to ±0.3 °C
- Supply voltage: 2.3 V … 5.5 V
- I2C fast mode plus, CRC checksum
- Pulse-width modulation interface
- Designed for 85°C/85%RH reliability testing
- Operating range: 0…100 %RH, -40…125 °C
- Fully functional in condensing environment
- Variable power heater
- AEC Q100 qualification, high-reliability design
- Mature technology from global market leader
- Patented protection options
