SHT45

±1.0% RH / ±0.1°C Digital humidity and temperature sensor

Specification

Humidity
Typ. relative humidity accuracy
1
%RH
Operating relative humidity range
0 - 100
%RH
Response time (τ63%)
4
s
Calibration certificate
Factory calibration
Temperature
Typ. temperature accuracy
0.1
°C
Operating temperature range
-40 - 125
°C
Response time (τ63%)
2
s
Generic
Supply voltage
1.08 - 3.6
V
Average supply current
0.4
μA
Interfaces
I²C
Package size (LxWxH)
1.5 x 1.5 x 0.5
mm³
Packaging size
2500, 10000
pcs (T&R)

Technical downloads

Name
Type
Date
File
Size
Datasheet SHT4x
Datasheet
04/2022
Link
776.5 KB
Creep mitigation SHT4xX
Application note
05/2022
PDF
277.8 KB
Heater decontamination SHT4xX
Application note
03/2022
PDF
403.1 KB
Transitioning from SHTW2 to SHT4x
Application note
08/2020
PDF
474.3 KB
Conditions of thermal comfort
Application note
02/2010
PDF
63.0 KB
ESD, Latch-up and EMC
Application note
03/2009
PDF
148.9 KB
How to understand specification of relative humidity sensors
Application note
04/2021
PDF
306.8 KB
Humidity at a glance
Application note
06/2021
PDF
178.3 KB
Introduction to humidity
Application note
08/2009
PDF
224.9 KB
Design-in guide SHT/STS
User guide
05/2019
PDF
458.7 KB
Handling instructions SHT
User guide
06/2021
PDF
313.4 KB
REACH and RoHS declaration SHT/STS
Certificate
07/2021
PDF
93.6 KB
Humidity sensors brochure
Flyer
01/2022
PDF
936.7 KB
Indoor air quality brochure
Flyer
10/2021
PDF
7.7 MB

In line with Sensirion’s industry-proven humidity and temperature sensors, the SHT4x offers the best price-performance ratio on the market. Tape and reel packaging combined with its suitability for standard SMD assembly processes make the SHT4x ideal for high-volume applications.

The SHT4x builds on a completely new and optimized CMOSens® chip that offers reduced power consumption and improved accuracy specifications. With the extended supply voltage range from 1.08 V to 3.6 V, it’s the perfect fit for mobile and battery-driven applications. The exceptionally small size in a robust DFN housing enables integration into challenging designs while meeting the highest reliability demands, as demonstrated by the JEDEC JESD47 qualification.

The high-accuracy versions SHT41 and SHT45 feature typical and maximal accuracies that have been honed even further, down to ∆RH = ± 1.5% RH and ∆T = ± 0.1°C, making them suitable for the most demanding applications in all industries. The year 2022 will also bring additional protection options to complete the portfolio, meeting even the most rigorous technological challenges. The on-package filter membrane ensures IP67 compliance for exposed designs, while the protection option ensures reliable conformal coating.

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