Sensirion STC42A Hydrogen Thermal Conductivity Sensor
Sensirion STC42A Hydrogen Thermal Conductivity Sensor is designed for applications that require reliable hydrogen concentration measurements in clean air. The STC42A uses the thermal-conductivity measurement principle, resulting in superior repeatability and long-term stability. It features an I2C controller interface for autonomous humidity compensation from a corresponding humidity-temperature sensor (SHT41A-AD1B). QFN and tape and reel packaging offer cost- and space-effective integration of the STC42A for high-volume production. Sensirion’s CMOSens® sensor technology enables the outstanding performance of the STC42A by integrating the signal processing, sensor element, and digital calibration on a single CMOS chip.
Features
- H2 measurement accuracy (±0.4 vol% +2%m.v.) from 0 vol% to 40 vol%
- Digital I2C interface and calibrated output signal
- AEC-Q100 grade 2 qualified
- Low power mode with current consumption below 7µA
- High reliability and long-term stability
- Industry-proven sensing technology
Applications
- Battery thermal runaway detection
- Hydrogen detection
- Hydrogen leakage
- Thermal propagation
Specifications
- Generic
- 3.15V to 5.25V supply voltage
- 73µA average supply current, 4.2mA maximum
- I2C interface
- 3.5mm x 3mm x 1mm (LxWxH) size
- Hydrogen
- 0 to 40 (vol%) measurement range
- -40°C to +105°C operating temperature range
- 1s response time
- 16-bit resolution
Functional Block Diagram
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Development Tool
Sensirion SEK-STC42A H2-Evaluierungskit für Fahrzeugindustrie
Es ist das ideale Toolkit für die praktische Evaluierung des Sensors STC42A und für ein effizientes Prototyping.