With the launch of the industry's first waterproof MEMS pressure sensor with a 10-year supply guarantee, IoT applications in related industries such as gas and water meters, home appliances, and weather monitoring are expected to expand.

STMicroelectronics (ST), a global semiconductor company supporting a wide range of electronic applications and customers, announced on the 7th that it has launched the industry's first waterproof and liquid-resistant MEMS absolute pressure sensor for the industrial market, backed by a 10-year supply guarantee program.

Simone Ferri, Head of the AMS MEMS Subgroup at ST, stated, “As the Industrial Internet of Things (IoT) proliferates, companies seek to collect data on their overall operations even in demanding indoor and outdoor environments. ST’s latest waterproof MEMS pressure sensors provide the exceptional environmental durability required by digitizing electronic systems, along with long-term supply to protect customer designs.”

ST's new ILPS28QSW sensor is available in a sealed cylindrical surface mount package.

Ceramic substrates providing excellent liquid permeability to protect internal circuits and robust potting gels proven in automotive applications (PottiIt is equipped with ng Gel.

A lid made of high-grade surgical steel can secure a seal by fixing the O-ring with epoxy adhesive.

This unique package design guarantees IP58 ingress protection performance capable of withstanding depths of more than 1 meter, and has obtained certification according to IEC 60529 and ISO 20653.

In addition, this sensor can withstand overpressure of up to 10 Bar.

ILPS28QSW provides absolute pressure readings with an accuracy of within 0.5 hPa in selectable full-scale ranges of 260 to 1,260 hPa and 260 to 4,060 hPa, and supports a wide operating temperature range of -40°C to 105°C.

With such high accuracy and excellent environmental robustness, it is suitable for applications such as gas and water meters, weather monitoring, smart air conditioner filters, and home appliances.

The ILPS28QSW is also equipped with ST’s unique Qvar® electrostatic sensing channel, enabling it to create added value for applications through features such as liquid leak detection.

When Qvar is used with pressure signals, it is possible to monitor not only liquid levels but also minute leakage amounts in home appliances and industrial processes.

The ILPS28QSW, with an operating current of only 1.7μA, can be applied to power-sensitive applications and simplifies system design and management through integrated digital functions.

Temperature compensation, FIFO memory, and I2C/MIPI-I3C digital communication interfaces are all built-in, and the output data rate can be selected from 1Hz to 200Hz.

ILPS28QSW is currently in mass production, and the price is $3 for every 1,000 units purchased.