Sensirion SHT40I-HD1B Analog Humidity Sensor

Sensirion SHT40I-HD1B Analog Humidity Sensor has been specifically developed for demanding industrial applications such as refrigerators, air conditioners, and any other application where high system noise prevents the use of digital solutions. The SHT40I-HD1B offers 5V supply voltage, robust housing, and increased ESD protection to match the requirements of harsh operating environments. An optional periodic variable power heater allows for operation in highly demanding environments, including those with constant high humidity and condensing atmospheres.

The Sensirion SHT40I-HD1B Analog Humidity Sensor is housed in a compact 1.5mm x 1.5mm x 0.5mm open-cavity Dual Flat No-lead (DFN) package. The humidity sensor opening is centered on the top side of the package. The sensor chip is made of silicon, hosted on a copper lead frame, and overmolded by an epoxy-based mold compound.

Features

  • ±2.5%RH relative humidity accuracy 
  • ±0.3°C temperature accuracy 
  • 4.5V to 5.5V supply voltage
  • 520µA average current
  • 10%VDD to 90VDD Analog voltage output 
  • Multiple out-output characteristics are available
  • NIST traceable
  • Fully functional in a condensing environment
  • Variable power heater
  • Protection options available
  • Operating range
    • 0% to 100% RH
    • -40°C to +125°C
  • 1.5mm x 1.5mm x 0.5mm open-cavity DFN4

Applications

  • Refrigerators
  • HVAC systems
  • Weather stations
  • Industrial sensor networks

Block Diagram

Block Diagram - Sensirion SHT40I-HD1B Analog Humidity Sensor

Package Outline

Mechanical Drawing - Sensirion SHT40I-HD1B Analog Humidity Sensor

Sensirion SHT40I-HD1B Analog Humidity Sensor