The 4th Generation of Best-in-Class Humidity Sensing

In line with Sensirion’s industry-proven humidity and temperature sensors, the SHT40 offers the best price-performance ratio. Tape and reel packaging combined with suitability for standard SMD assembly processes make the SHT40 ideal for high-volume applications.

The SHT40 builds on a completely new and optimized CMOSens^® chip offering reduced power consumption and improved accuracy specifications. With the extended supply voltage domain from 1.08 V to 3.6 V mobile and battery-driven applications are the perfect fit. The super small-size realized in a robust DFN housing allows for integration in challenging designs while securing highest reliability demands as demonstrated by the JEDEC JESD47 qualification.

Features  

• Relative humidity accuracy: ±1.8 %RH
• Temperature accuracy: ±0.2 °C
• Supply voltage: 1.08 V to 3.6 V
• Average current: 0.4 µA (at meas. rate 1 Hz)
• Idle current: 80 nA
• I²C fast mode plus
• Operating range: 0 to 100 %RH, -40to 125 °C
• Fully functional in condensing environment
• Variable power heater
• NIST traceability
• JEDEC qualification

Applications

• Consumer electronics
  • Air Quality Monitors (see 40to60RH petition)
  • Smart Speakers / Thermostats
  • Dataloggers
  • Smoke Detectors
• Medical Devices
• Inkjet and Laser Printers

Core values

• Pioneering humidity and temperature sensors since more than 20 years
• Proven track record: 4^th generation of humidity sensors
• Highest reliability, robustness and accuracy
• Highest quality requirements according to JEDEC JESD47

Technology and benefits