Summary of TE CONNECTIVITY’S HTU31 HIGH-ACCURACY HUMIDITY & TEMPERATURE SENSORS FOR HARSH ENVIRONMENTS
TE Connectivity's HTU31 is a compact, high-accuracy digital sensor designed for harsh environments in medical and industrial sectors. It offers precise temperature and humidity measurements with fast response times, low power consumption, and robust performance across extreme conditions ranging from -40°C to 125°C and 0% to 100% RH. Available in both digital and analog versions, it features a small DFN package suitable for automated assembly and requires no calibration under standard conditions.
Parts used in the HTU31 Sensor Project:
- HTU31 Humidity and Temperature Sensor
- Digital I2C Interface Version
- Analog Interface Version
- 6-Pin DFN Package
Nowadays, the requirements for industries such as medical, consumer electronics, industrial, and appliances force the manufacturers to come out with more efficient sensors, that also need to take into account environmental conditions and user expectations. The HTU31, by TE Connectivity, is an interesting, highly accurate digital sensor for relative humidity and temperature, ready to be deployed in harsh environmental conditions.
The HTU31, as described by TE Connectivity, “is one of the smallest and most accurate humidity sensors on the market”. With 20+ years of experience, they promise with this sensor fast response time, low hysteresis, high precision measurements and reliable performance even when the environmental conditions go to an extreme, regarding both temperature (-40 ºC to 125 ºC) and humidity (0% to 100% RH).
But what exactly are we looking at, when it comes to characteristics?
- Typical accuracy ±2% RH and ±0.2 °C
- Active current consumption of 450 µA, with sleep modes down to 0.05 µA
- Application-friendly voltage range, from 3 V to 5.5 V (6 V peak)
- Power dissipation as low as 3.78 µW (digital version) or 15 µW (analog version)
- Fast response time
- Compact 6-Pin DFN package (reflow solderable, compatible with automatic assembly procedures), measuring only 2.5mm x 2.5mm x 0.9mm. Lead free
- Both digital (fast I2C interface with 2 configurable addresses) and analog interface versions
- Quick recovery after long periods in the saturation phase
- Full interchangeability with no calibration required in standard conditions
- Fully calibrated, temperature compensated measurements
- Qualified according to AEC Q100 Grade 1 standards
Read more: TE CONNECTIVITY’S HTU31 HIGH-ACCURACY HUMIDITY & TEMPERATURE SENSORS FOR HARSH ENVIRONMENTS
- What is the primary function of the HTU31 sensor?
The HTU31 is a highly accurate digital sensor designed for measuring relative humidity and temperature. - How does the HTU31 perform in extreme environmental conditions?
It delivers reliable performance in temperatures from -40 ºC to 125 ºC and humidity levels between 0% and 100% RH. - What are the typical accuracy specifications for this sensor?
The sensor provides typical accuracy of ±2% RH and ±0.2 °C. - Can the HTU31 be used in applications requiring low power consumption?
Yes, it features an active current of 450 µA with sleep modes as low as 0.05 µA. - Does the HTU31 require calibration during standard operations?
No, it offers full interchangeability with fully calibrated, temperature compensated measurements that require no calibration in standard conditions. - What interface options are available for the HTU31?
Both digital versions with a fast I2C interface and analog versions are available.
