Honeywell HIH8121-021-001

The Honeywell HumidIcon™ Digital Humidity/Temperature Sensors HIH8000 Series are digital output relative humidity (RH) and temperature sensors integrated in a single package. These sensors offer ±2.0% RH accuracy and ±0.5°C temperature accuracy. The series is available in multiple package variants, allowing customers to select housing style (SIP 4-pin or SOIC-8 SMD), filter (hydrophobic filter or no filter), output (I²C or SPI), and packaging form (bulk and box, tape and reel, or tape and reel sample).

• Industry-leading long-term stability (1.2%RH over five years)
• True temperature-compensated digital I²C or SPI output
• Industry-leading reliability (MTBF: 9,312,507 hours)
• Energy efficient
• Lowest total cost solution
• Ultra-compact package with multiple options
• Additional accuracy options: ±1.7%RH (HIH9000 series), ±3.0%RH (HIH7000 series), ±4.0%RH (HIH6100 series), and ±4.5%RH (HIH6000 series)
• Low supply voltage: operates down to 2.3 Vdc for low-power and wireless-compatible applications, improving energy efficiency and extending system battery life
• Low power consumption: sleep mode when no measurement is active — 1μA in sleep mode vs. 650μA in full operation for battery-powered systems; sleep mode maximizes battery life, reduces power supply size, and lowers overall system weight
• High resolution: 14-bit humidity and 14-bit temperature sensor resolution for detecting minimal RH or temperature changes in user systems
• Package style: SOIC-8 SMD or SIP 4-pin; ultra-compact footprint for flexible placement, minimal PCB space, simplified mounting on crowded PCBs or small devices; industry-standard design simplifies design-in
• Filter options: optional hydrophobic filter with condensation resistance for condensing environments, or without hydrophobic filter for non-condensing environments
• Tape and reel: supports high-volume automated SMT assembly, eliminates pin-to-PCB alignment issues, and helps reduce manufacturing costs
• Wide operating temperature range: -40°C to 125°C [-40°F to 257°F], suitable for a wide range of applications
• Optional one or two %RH alarm outputs: monitors whether RH levels exceed or fall below predefined critical thresholds
• Versatile ASIC: reduces or eliminates OEM calibration risk and cost, providing flexibility in application
• RoHS and WEEE compliant, halogen-free

• Industrial
• HVAC/R: Suitable for air conditioning/airflow systems, enthalpy sensing, thermostats, humidifiers/dehumidifiers, and humidity controllers — providing precise relative humidity and temperature measurements to maintain occupant comfort and optimal storage humidity/temperature while achieving low energy consumption