EmbeddedRelated.com
The 2026 Embedded Online Conference
SEK-SHT40A-AD1B

SEK-SHT40A-AD1B

MPN: SEK-SHT40A-AD1B-Sensors
Sensirion
Temperature Sensor Development Tools
13 in stock

Overview

The SEK-SHT40A-AD1B is an evaluation kit for the AEC-Q100 qualified SHT40A automotive-grade humidity and temperature sensor. It features a sensor mounted on a breakout board with a 4-pin header for easy integration into development environments and prototyping systems. The kit allows engineers to test the sensor's performance across its full operating range of -40degC to 125degC.

Why Choose This Part

The kit simplifies testing of the AEC-Q100 qualified SHT40A, which offers high reliability and a built-in variable power heater for self-decontamination. It supports a wide supply voltage from 2.3V to 5.5V and maintains a low 320uA current draw during 1Hz measurements.

Applications

Climate Control Systems
Used in automotive HVAC systems for cabin climate control and windshield defogging.
Engine Management
Monitoring intake air humidity to optimize combustion processes in internal combustion engines.
Electronic Control Units
Detecting condensation and extreme temperature conditions within sensitive automotive ECU housings.

Key Specifications

Contents Board(s)
Interface I2C, Serial
Sensitivity +/-0.3degC, +/-3%
Sensor Type Humidity, Temperature
Sensing Range -40degC ~ 125degC, 0 ~ 100% RH
Voltage - Supply 2.3V ~ 5.5V
Utilized IC / Part SHT40A

Getting Started

Connect the board to a microcontroller using the I2C interface and 4-pin header. Use the Sensirion SEK-SensorBridge or an Arduino-compatible platform to read humidity and temperature data via the 0x44 I2C address. Ensure that the pull-up resistors are appropriately sized for your specific bus speed and voltage.

Also Consider

SHT40-AD1B-R2 Sensirion - The discrete IC version of the sensor for high-volume production designs where automotive qualification is not the primary requirement.
SEK-SHT41-AD1B Sensirion - An alternative evaluation kit featuring higher precision with +/-0.2degC and +/-2% RH typical accuracy.
The 2026 Embedded Online Conference