Sensirion SHT21, Temperature & Humidity Sensor -40 → +125 °C ±0.3 °C, ±2 %RH Serial-I2C, 6-Pin DFN

  • RS Stock No. 786-5554
  • Mfr. Part No. SHT21
  • Manufacturer Sensirion
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

SHT2x Digital Humidity & Temperature Sensors

The Sensirion SHT2x series of DFN digital humidity & temperature sensors are CMOSens® based. They are an industry standard, widely used humidity and temperature sensor. Humidity is measured using a capacitive sensor while temperature is measured using a band-gap sensor.
The SHT2x sensors also contain a version 4 silicon chip with an amplifier, A/D converter, OTP memory and a digital interface. They come in a plastic package which leaves the sensor area open, protecting the devices from external impact and providing long-term stability.
SHT2x sensors are ideal for both high and low volume applications.
The SHT21P has a PWM output and the SHT21S has a PDM output; these can be converted into analogue outputs by the use of suitable low-pass filters.
SHT20 - Low cost, SHT21 - Standard, SHT25 - High Accuracy

CMOSens® based technology
Fully calibrated
I²C serial interface (Not SHT21P/SHT21S)
Digital output
Low power consumption
Long-term stability
Supply voltage range: 2.1 to 3.6 V

The following sensors are available:

123-7351 · SHT20 · I²C Digital output
786-5554 · SHT21 · I²C Digital output
876-5055 · SHT21P · PWM output
876-5064 · SHT21S · PDM output
727-6226 · SHT25 · I²C Digital output

Temperature & Humidity Sensors, Sensirion

Specifications
Attribute Value
Sensor Function Temperature & Humidity
Output Type Digital
Interface Type Serial-I2C
Accuracy ±0.3 °C, ±2 %RH
Mounting Type Surface Mount
Pin Count 6
Minimum Operating Temperature -40 °C
Operating Temperature Range -40 → +125 °C
Maximum Operating Temperature +125 °C
Minimum Operating Supply Voltage 2.1 V
Maximum Operating Supply Voltage 3.6 V
Package Type DFN
Length 3mm
Height 1.1mm
Width 3mm
Resolution 8 → 14 bit
Dimensions 3 x 3 x 1.1mm
19 : Next working day (AU stock)
481 : 7 working days (Global stock)
Price (ex. GST) Each
$ 11.54
(exc. GST)
$ 12.69
(inc. GST)
units
Per unit
1 - 9
$11.54
10 - 49
$11.20
50 - 99
$11.00
100 - 249
$10.91
250 +
$10.87
Packaging Options:
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