Posted in | Hygrometers | Hydrometers

Digital Humidity Sensor SHT3x (RH/T)

The digital SHT3x humidity sensor series from Sensirion takes sensor technology to a completely new level. Being the next in line to the SHT2x series, it is sure to set the next industry standard in humidity sensing. The SHT3x humidity sensor series comes in a standard version with the SHT31 humidity sensor, a low-cost version with the SHT30 humidity sensor, and a high-end version with the SHT35 humidity sensor.

The SHT3x humidity sensor series integrates various functions and several interfaces (I2C, analog voltage output) with a very broad and applications-friendly operating voltage range of 2.15–5.5 V. The SHT3x humidity sensor comes in both large and small volumes.

The SHT3x has been developed using an entirely new and optimized CMOSens® chip, which ensures enhanced accuracy specifications and improved reliability. The SHT3x provides a wide array of new features, for example, two distinctive and user-selectable I2C addresses, improved signal processing, communication speeds of up to 1 MHz, and an alert mode with programmable temperature and humidity limits.

The footprint of the DFN package is 2.5 × 2.5 mm2 and it has a height of 0.9 mm. This enables the SHT3x to be combined into a wide range of applications. Furthermore, the broad supply voltage range of 2.15–5.5 V and a wide range of available interfaces ensure compatibility with diverse integration requirements. On the whole, the SHT3x humidity sensor series puts together 15 years of knowledge from Sensirion, the pioneer in the humidity sensor industry.

Overview of SHT3x Versions

Product Typ. RH Accuracy (%RH) Typ. Temperature (°C) VDD Range (V) Interface Protective Options Available Reel Sizes (pcs) Datasheets
SHT30-ARP-B ±3
@10-90% RH
±0.3
@0-65 °C
2.4 to 5.5 analog ratiometric voltage - 2'500, 10'000 Download
SHT30-DIS-B ±2
@10-90% RH
±0.2
@0-65 °C
2.15 to 5.5 I2C - 2'500, 10'000 Download
SHT31-ARP-B ±3
@0-100% RH
±0.2
@-40-90 °C
2.4 to 5.5 analog ratiometric voltage - 2'500, 10'000 Download
SHT31-DIS-B ±2
@0-100% RH
±0.2
@0-90 °C
2.15 to 5.5 I2C - 2'500, 10'000 Download
SHT31-DIS-F ±2
@0-100% RH
±0.2
@0-90 °C
2.15 to 5.5 I2C Filter membrane 2'500, 10'000 Download
STH31-DIS-P ±2
@0-100% RH
±0.2
@0-90 °C
2.15 to 5.5 I2C Protective cover 2'500, 10'000 Download
SHT35-DIS-B ±1.5
@0-80% RH
±0.1
@20-60 °C
2.15 to 5.5 I2C - 2'500, 10'000 Download
SHT35-DIS-F ±1.5
@0-80% RH
±0.1
@20-60 °C
2.15 to 5.5 I2C Filter membrane 2'500, 10'000 Download

Features

  • Supply voltage range: 2.4–5.5 V
  • Size: 2.5 x 2.5 x 0.9 mm
  • Energy consumption: 4.8 µW (at 2.4 V, low repeatability, 1 measurement/second)
  • Output: I2C, Voltage Out
  • RH operating range: 0%–100% RH
  • RH response time: 8 seconds (tau63%)
  • T operating range: −40 to +125 °C (−40 to +257 °F)

Delivery Conditions

  • Packaging: Tape and reel, sealed in ESD bag
  • Packaging sizes: 2,500 and 10,000 pieces per reel

Accuracy Limits for Relative Humidity and Temperature (SHT30 and SHT31)

Accuracy Limits for Relative Humidity and Temperature (SHT30 and SHT31)

Accuracy Limits for Relative Humidity and Temperature (SHT30 and SHT31)

Accuracy Limits for Relative Humidity and Temperature (SHT35)

Accuracy Limits for Relative Humidity and Temperature (SHT35)

Accuracy Limits for Relative Humidity and Temperature (SHT35)

Digital Humidity Sensor SHT3x (RH/T)

Digital Humidity Sensor SHT3x (RH/T) - Picture 1
Digital Humidity Sensor SHT3x (RH/T) - Picture 2
Digital Humidity Sensor SHT3x (RH/T) - Picture 3

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