www.sensirion.com / D1

Version 1.0 – May 2025

1 / 22

Datasheet – SHT41A-AWSB

4th Generation, ASIL-A(C) Safety Element out of Context, High-Accuracy, Automotive-Grade

Relative Humidity and Temperature Sensor

Highlights

•

ASIL-A Safety Element out of Context

•

Relative humidity accuracy: up to ±2 %RH

•

Temperature accuracy: up to ±0.2 °C

•

VDD: 2.3 V … 5.5 V

•

Operating range: 0 … 100 %RH, -40 … 125 °C

•

Designed for 85 °C/85 %RH reliability testing

•

Fully functional in condensing environment

•

Variable power heater

•

AEC-Q100 qualification, high-reliability design

•

Mature technology from global market leader

•

Developed according to ISO 26262

SHT41A-AWSB is an ASIL-A Safety Element out of Context (SEooC), automotive-grade digital sensor platform for

measuring relative humidity and temperature for functional safety applications, developed according to ISO26262.

It fulfills demanding functional safety and reliability requirements for automotive applications, such as water

ingress detection inside ECU housings, Steer- and Brake-by-Wire systems, LiDARs, cameras and rain light sensors.

The sensor comes with extensive Diagnose and Safety Manuals for direct implementation and integration into

various safety concepts. The I2C interface and the integrated heater allow advanced on-board diagnostics. The

sensor element is designed for reliable operation in harsh conditions such as condensing environments. The four-

pin dual-flat-no-leads package is suitable for surface mount technology (SMT) processing and includes wettable

flanks.

Device Overview

Functional Block Diagram

Product

Details

SHT41A-AWSB

Safety element out of context

±2 %RH / ±0.2 °C, 0x44 I2C addr.,

wettable flanks, VDD = 2.3 V … 5.5 V