SHT41A-AD1B-R2

Product Introduction

The SHT4xA is a 4th generation, high-accuracy, functional safety compliant automotive-grade relative humidity and temperature sensor platform. It is designed to meet demanding automotive reliability requirements, including 85 °C/85 %RH accelerated life tests, and is available as an ASIL-A Safety Element out of Context (SEooC) developed according to ISO 26262. The sensors can be interfaced via I2C or pulse-width modulation. An integrated heater allows for advanced on-board diagnostics while 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 can be ordered with a wettable flanks option.

Features

• Relative humidity accuracy: up to ±2 %RH
• Temperature accuracy: up to ±0.2 °C
• VDD: (1.08 V … 3.6 V) & 2.3 V … 5.5 V
• I2C FM+, CRC checksum, multiple I2C addresses
• Pulse-width modulation interface
• 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
• Available as a Safety Element out of context (ASIL-A SEooC) developed according to ISO 26262

Applications

• Automotive climate control and HVAC systems
• Battery management systems and thermal monitoring
• Engine control and intake air monitoring
• Windshield defogging and dew point detection
• Industrial and harsh environment monitoring
• Functional safety related applications

Specifications Table

To learn more, please download the PDF.