SCD41-D-R2 Datasheet | Sensirion

Features - Photoacoustic NDIR sensor technology PASens® - Smallest form factor: 10.1 x 10.1 x 6.5 mm3 - Reflow solderable for cost effective assembly - Large output range: 0 ppm - 40’000 ppm - Large supply voltage range: 2.4 - 5.5 V - High accuracy: ±(40 ppm + 5 %) - Digital I2C interface - Integrated temperature and humidity sensor - Low power operation down to < 0.4 m A avg. @ 5 V, 1 meas. / 5 minutes Product Summary The SCD4x is Sensirion’s next generation miniature CO2 sensor. This sensor builds on the photoacoustic NDIR sensing principle and Sensirion’s patented PASens® and CMOSens® technology to offer high accuracy at an unmatched price and smallest form factor. SMD assembly allows cost- and space-effective integration of the sensor bined with maximal freedom of design. On-chip signal pensation is realized with the build-in SHT4x humidity and temperature sensor. CO2 is a key indicator for indoor air quality as high levels promise humans’ cognitive performance and wellbeing. The SCD4x enables smart ventilation systems to regulate ventilation in the most energy-efficient and human-friendly way. Moreover, indoor air quality monitors and other connected devices based on the SCD4x can help maintaining low CO2 concentration for a healthy, productive environment. Device Overview Products Details SCD40-D-R2 Base accuracy, specified range - 2’000 ppm SCD41-D-R2 High accuracy, specified range - 5’000 ppm, single shot mode supported SCD42-D-R2 Separate datasheet, see https://sensirion./products/cat alog/SCD42/ Full product list on page 22 Functional Block Diagram .sensirion. Version 1.3 - September 2022 1/24 Table of Contents 1 Sensor Performance 3 1.1 CO2 Sensing Performance 3 1.2 Humidity Sensing...