15.06.2022, Press release

Shorter delivery times for humidity and temperature sensors

Sensirion is shortening the delivery time of its humidity and temperature sensors to 14 weeks. The resulting increased sensor availability ensures stable supply chains and provides customers with additional flexibility.

Sensirion is shortening the delivery times for humidity and temperature sensors to 14 weeks thanks to intensive collaboration with its suppliers and expanded production capacity. This boost to the security of the supply chain and Swiss-based production enable the sensor manufacturer to meet even short-term fluctuations in customer demand.

“By optimizing our supply chain and increasing our production capacities, we are able to offer the shortest lead times for semiconductor sensors worldwide. With our market-leading humidity and temperature sensors, we are improving the delivery situation for our customers,” says Maximilian Eichberger, Director Product Management Humidity and Temperature Sensors at Sensirion.

Latest generation of humidity and temperature sensors

The SHT4x and STS4x humidity and temperature sensors are based on Sensirion’s patented CMOSens® Technology and are suitable for standard SMD assembly processes. The sensors also offer maximum reliability, as demonstrated by extensive accelerated service life tests. They feature a complete sensor system on a single chip with a fully calibrated digital I²C interface and are available in different accuracy versions.

Featured series and products

SHT3x

The established standard in humidity sensing

The digital SHT3x humidity sensor series takes sensor technology to a new level. As the successor of the SHT2x series it sets the industry standard in humidity sensing. The SHT3x humidity sensor series consists of a low-cost version with the SHT30 humidity sensor, a standard version with the SHT31 humidity sensor, and a high-end version with the SHT35 humidity sensor. Automotive grade versions are also available. The SHT3x humidity sensor series combines multiple functions and various interfaces (I²C, analog voltage output) with a applications-friendly, very wide operating voltage range (2.15 to 5.5 V). The SHT3x humidity sensor is available in both large and small volumes.

SHT4x

The 4th generation of best-in-class humidity sensing

In line with Sensirion’s industry-proven humidity and temperature sensors, the SHT4x offers the best price-performance ratio on the market. Tape and reel packaging combined with its suitability for standard SMD assembly processes make the SHT4x ideal for high-volume applications. The SHT4x builds on a completely new and optimized CMOSens® chip that offers reduced power consumption and improved accuracy specifications. With the extended supply voltage range from 1.08 V to 3.6 V, it’s the perfect fit for mobile and battery-driven applications. The exceptionally small size in a robust DFN housing enables integration into challenging designs while meeting the highest reliability demands, as demonstrated by the JEDEC JESD47 qualification. The high-accuracy versions SHT41 and SHT45 feature typical and maximal accuracies that have been honed even further, down to ∆RH = ± 1.5% RH and ∆T = ± 0.1°C, making them suitable for the most demanding applications in all industries. The year 2022 will also bring additional protection options to complete the portfolio, meeting even the most rigorous technological challenges. The on-package filter membrane ensures IP67 compliance for exposed designs, while the protection option ensures reliable conformal coating. On top of that, the SHT40 is compliant with the relevant healthy building standards RESET® and WELL Building Standard™.

SHT4xA

Automotive-grade, high-reliability humidity sensors

Sensirion is adding the SHT4xA high-reliability relative humidity and temperature sensor platform for automotive applications to its 4th-generation humidity sensing series. The SHT4xA offers different accuracy gradings and I²C or pulse-width modulation interfaces. The optional wettable flanks enable automated optical inspection of the robust DFN housing. The AEC Q100 qualification demonstrates the SHT4xA’s superior reliability, making it perfectly suitable for automotive applications. In addition, the included power heater enables advanced self-diagnosis capability of the chip over its entire lifetime. Thanks to the comprehensive SHT4xA portfolio, automotive manufacturers can choose the perfect size for their specific use case. Based on Sensirion’s proven CMOSens ® Technology and longstanding experience in humidity sensing, the SHT4xA ensures the highest precision. It has been specifically designed for automotive applications and fulfills demanding reliability requirements, such as 85°C/85%RH accelerated life tests and AEC Q100 qualification.

SHT4xI

Reliable 5V humidity sensor for industrial applications

Sensirion expands its 4th generation humidity sensing series with the digital SHT4xI sensor platform which has been specifically designed for challenging industrial applications. The series consists of two accuracy versions SHT40I and SHT41I, offering 5V supply voltage, the best robustness and increased ESD protection. The SHT4xI is based on Sensirion’s proven CMOSens® Technology, which ensures the highest reliability. The sensor enables seamless integration with its wide operating voltage range, small size and robust housing. Based on its features and Sensirion’s advanced expertise in humidity sensing, the SHT4xI is the perfect fit for measurements under rough conditions in industrial applications.

SHTCx

Digital humidity and temperature sensor

STS3x

Best-in-class temperature sensing for various applications

The STS3x is Sensirion’s high-accuracy digital temperature sensor series. The STS3x temperature sensor utilizes the industry-proven CMOSens® Technology and wins over users with its increased intelligence, reliability, NIST traceability and improved accuracy specifications. There are also automotive grade versions available. Every single STS3x is calibrated and 100% end tested. The calibration is performed with a reference sensor which is NIST traceable through an ISO/IEC 17025 accredited laboratory. The functionality of Sensirion’s STS3x temperature sensor includes enhanced signal processing, two distinctive and user-selectable I²C addresses, and communication speeds of up to 1 MHz. The dual-flat no-leads (DFN) package has a footprint of 2.5 × 2.5 mm² while retaining a height of 0.9 mm. This allows for easy integration of the STS3x series into various applications. Additionally, the wide supply voltage range of 2.15 to 5.5 V and low current consumption (1.7µA typical average current at 1 measurement per second) guarantees compatibility with a wide range of applications. The STS3x temperature sensor gives a fully calibrated, linearized, and supply-voltage-compensated digital output and has an outstanding accuracy of up to +/–0.1°C. There are three versions available: the standard version, STS31, guarantees an accuracy of ±0.2°C over a temperature range of 0°C to 90°C, while the low-cost version, STS30, has an temperature range of 0°C to 65°C. The high-end version STS35 is the most accurate temperature sensor available with an accuracy of ±0.1°C over a temperature range of 20 to 60°C. Thanks to Sensirion’s CMOSens® Technology, the STS3x temperature sensor is designed for mass production, comes with a high signal-to-noise ratio and high process capability, and is proven to be highly reliable and stable over the long term.

STS4x

State-of-the-art temperature sensing for various applications

The STS4x is Sensirion’s state-of-the-art, highly accurate digital temperature sensor series, boasting industry-leading lead times. It is a fully digital, highly cost-efficient temperature sensor platform that is available in different accuracy classes, currently represented by the STS40. The STS4x temperature sensor range features enhanced signal processing, three distinctive I²C addresses and communication speeds of up to 1 MHz. Moreover, the dual-flat no-leads (DFN) package has a footprint of only 1.5 × 1.5 mm² while retaining a height of 0.5 mm, which allows for an easy integration of the STS4x series into various applications. Additionally, the wide supply voltage range of 1.08 to 3.6 V and low current consumption of 0.4 µA for a typical average current at 1 measurement per second enables battery-driven designs. Taken together, the STS4x series achieves the greatest cost efficiency among comparable sensors on the market. Thanks to Sensirion’s CMOSens® Technology, the STS4x temperature sensor benefits from the high-tech engineering of a wide range of sensor components. It is designed for mass production, comes with a high signal-to-noise ratio and high process capability and is proven to be highly reliable and stable over the long term.