NG # 09440020-HW-SENS-020
STC42A is an automotive-grade digital hydrogen (H₂) sensor designed for early detection of battery thermal runaway and hydrogen leakage. Based on thermal conductivity measurement technology, it provides a 0–40 vol% measurement range, a fast 1-second response time, and a digital I²C interface. Its compact design and high reliability make it suitable for electric vehicle battery monitoring, battery energy storage systems, and fuel cell applications.
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Get A QuoteThe STC42A delivers factory-calibrated hydrogen measurements with 16-bit resolution and an operating temperature range of −40°C to 105°C. It operates on a 3.15–5.25 V supply, with an average supply current of 73 µA and a maximum current of 4.2 mA. Measuring just 3.5 × 3 × 1 mm, it features automotive qualification to AEC-Q100 Grade 2 and supports reliable hydrogen monitoring for battery management systems and safety-critical automotive applications.
Type: Automotive Hydrogen (Hâ‚‚) Sensor
Measurement Range: 0–40 vol% H₂
Measurement Principle: Thermal Conductivity
Accuracy: ±(0.4 vol% + 2% of reading)
Resolution: 16 bit Response Time: 1 s
Supply Voltage: 3.15–5.25 V
Average Supply Current: 73 µA
Max. Supply Current: 4.2 mA
Interface: I²C
Operating Temperature: -40 to +105°C
Dimensions (L × W × H): 3.5 × 3 × 1 mm
Packaging: 5,000 pcs (Tape & Reel)
Automotive Qualification: AEC-Q100 Grade 2
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