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SHT21 - 

Humidity Sensor, 2 %, 3 V, 0% to 100% Relative Humidity, DFN, 6 Pins, 8 s

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Manufacturer:
SENSIRION SENSIRION
Manufacturer Part No:
SHT21
Newark Part No.:
20T1172
Product Range
SHT Series
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The SHT21 is a surface mount Temperature and Humidity Sensor of Sensirion has become an industry standard in terms of form factor and intelligence, embedded in a reflow solderable dual flat no leads (DFN) package of 3 x 3mm foot print and 1.1mm height it provides calibrated, linearized sensor signals in digital, I²C format. The SHT2x sensor contain a capacitive type humidity sensor, a band gap temperature sensor and specialized analog and digital integrated circuit, all on a single CMOSens® chip. This yields in an unmatched sensor performance in terms of accuracy and stability as well as minimal power consumption.
  • Fully calibrated
  • Digital output
  • I²C serial interface
  • Low power consumption
  • Excellent long-term stability
  • CMOSens® based technology
  • ±2% RH accuracy
  • 3.2µW (at 8-bit, 1 measurement/s) energy consumption
  • 8s (tau63%) RH response time
  • Supply voltage range from 2.1V to 3.6V

Applications

Sensing & Instrumentation

Warnings

Sensitive to electrostatic discharge (ESD). To prevent ESD induced damage and degradation, take necessary ESD precautions when handling this product.

Product Information

:
2%
:
3V
:
0% to 100% Relative Humidity
:
DFN
:
6Pins
:
8s
:
-40°C
:
125°C
:
Cut Tape
:
SHT Series
:
MSL 2 - 1 year
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Details: 
Hi,

The manufacturer part number is given as SHT21, but Sensirion's SHT21 products have a sixth character indicating the output mode:
SHT21D
SHT21P
SHT21S

Does this Newark part number correspond with the Sensirion SHT21D part?

Thanks,
Scott
3 years, 10 months ago
by
SEW96
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Answers

A: 
For Sensiron SHT21D, Newark part number is 20T1172. By default SHT21 comes with SHT21D.
3 years, 10 months ago
by
TechGTC
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Q: 
1 answer

Looking for a filter cap

Details: 
Looking for a filter cap which can be used for humidity sensor (part number SHT21) so that it provides protection against dust & water.
3 years, 4 months ago
by
NewarkTechSupp
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A: 
Suggested part number of filter cap which can be used for this sensor is SF2 from Sensirion.
3 years, 4 months ago
by
NewarkTechSupport
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Details: 
1) How We energize the SHT21 sensor .
2) we are not finding any terminal on the SHT 21 sensor
3 years, 1 month ago
by
bhat
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Answers

A: 
The supply voltage of SHT2x must be in the range of 2.1 – 3.6V, recommended supply voltage is 3.0V. Power supply pins Supply Voltage (VDD) and Ground (VSS) must be decoupled with a 100nF capacitor. For more information, please refer page 6 of 12 in the following link.
For SHT21, two evaluation kits are available with Newark part numbers 20T1171,20T1170.
2 years, 11 months ago
by
TechGTC
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