Ultra-high accuracy versions added to humidity and temperature sensor

Sensirion launches two new versions of its fourth-generation humidity sensors. The SHT41 and SHT45 provide further improved humidity and temperature accuracy specifications, producing the new market and technology standards. The SHT41 is now offered worldwide; the SHT45 will follow in Q1/2022.

The series provides unmatched price-performance ratio. Tape and reel packaging, together with its suitability for standard SMD assembly processes, make the series excellent for high-volume applications.

The ultra-high accuracy versions feature typical accuracies that have been honed down to ∆RH = ±1% RH and ∆T = ±0.1C, setting the new market standard over all industries. Like the SHT40, the sensors build on a brand-new and optimised CMOSens chip that provides ultra-low power consumption. Its CMOSens technology offers a full sensor system on a single chip, with a fully calibrated digital I2C fast mode and interface. The sensors incorporate operating ranges from 0 to 100% RH and from -40C to +125C. With the extended supply voltage range from 1.08V to 3.6V and 400nA average current, the series is ideal for mobile and battery-driven applications. The particularly small size presented in a robust DFN housing allows integration into challenging designs while reaching the highest reliability demands, as demonstrated by the JEDEC JESD47 qualification.

"With the SHT41 and SHT45 humidity and temperature sensors, we're completing the portfolio of Sensirion's best-in-class fourth-generation humidity sensors. With our long-established 100% end-of-line testing, we are proud to guarantee our given accuracy specifications for every single device shipped. This has proven fundamental for the trust that our global high-tech customers place in us, whether they come from the medical or the automotive industry. Even during the ongoing semiconductor shortage situation, our Swiss manufacturing site provides exceptionally short lead times, and thereby guarantees the success of our customers' projects," says Maximilian Eichberger, director product management humidity and temperature sensors at Sensirion.