Overview
Hospitality Enviro Tech’s SGP41 sensor utilizes Sensirion’s CMOSens® MOx technology to detect VOC and NOx for indoor air quality systems. It offers a digital I²C output, compact solderable DFN package, and exceptional robustness and drift resistance.
Features
- Measures VOC and NOx with single-chip solution
- Digital I²C output with processed VOC and NOx indices
- Ultra-compact DFN package (2.44 × 2.44 × 0.85 mm³)
- Low power consumption (approx. 3 mA at 3.3 V)
- Excellent long-term stability and low drift
- On-chip humidity compensation
- Suitable for high-volume SMD assembly
Technical Specifications
| Package | DFN-6, 2.44 × 2.44 × 0.85 mm³ |
| Interface | I²C digital (raw + index output) |
| VOC Output Range | 0–1000 ppm (ethanol equivalent) |
| NOx Equivalent Range | 0–10 ppm |
| VOC Response Time (τ63%) | < 10 s |
| NOx Response Time | < 250 s |
| Switch-On Time | < 60 s (detect VOC), specs met in < 1 h |
| Power Supply Voltage | 1.7–3.6 V (typical: 3.3 V) |
| Current Consumption | ~3 mA |
| Operating Temperature | –20 °C to +55 °C |
| Humidity Range | 0%–100% RH (non-condensing) |
| Device-to-Device Variation | < ±15 VOC Index points or ±15% m.v. (greater) |
| Repeatability (VOC Index) | < ±5 VOC Index points or ±5% m.v. |
| Detection Limit (VOC) | < 50 ppb or <10% of setpoint (greater) |
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