SKU: SENS-2005
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TE Connectivity SM9235-BCE-S-300-000 Ultra-Low Pressure Sensor, Gauge, 0-300 Pa, Digital I2C, SOIC-16

₹4,549.00 (Inclusive of all taxes)
Out of Stock

The TE Connectivity SM9235-BCE-S-300-000 is a high-precision, ultra-low gauge pressure sensor in a compact SOIC-16 package. It features a digital 16-bit I2C interface for direct integration with microcontrollers like Arduino, Raspberry Pi, and STM32, providing accurate pressure measurements from 0 to 300 Pa for medical, HVAC, and instrumentation applications.

Features

  • Ultra-low gauge pressure sensing range of 0 to 300 Pa.
  • Digital 16-bit I2C interface for simplified system integration.
  • High accuracy of ±1% Full Scale after autozero calibration.
  • Integrated temperature compensation from -20°C to 85°C.
  • Compact, surface-mountable SOIC-16 package.

Out of stock

Description

The SM9235-BCE-S-300-000 pressure sensor from TE Connectivity utilizes advanced Silicon Micromachined (SMI) technology combined with integrated CMOS signal conditioning to deliver precise digital pressure readings. This design provides exceptional stability and accuracy for ultra-low pressure differentials, making it ideal for sensitive flow and pressure monitoring tasks.

Engineered for reliability, the sensor incorporates built-in temperature compensation and autozero functionality, ensuring consistent performance across its full operating temperature range. The digital I2C output eliminates the need for external analog-to-digital conversion, simplifying PCB design and reducing overall system complexity for applications in medical respiratory devices, HVAC control, and industrial instrumentation.

Key Features

  • Ultra-low pressure MEMS sensor with 0-300 Pa gauge range.
  • Fully calibrated digital output via 16-bit I2C interface.
  • High accuracy of ±1% Full Scale (post-autozero).
  • Integrated temperature compensation for stable operation from -20°C to 85°C.
  • Robust Silicon Micromachined (SMI) sensing element.
  • Wide supply voltage range from 3.0V to 5.5V DC.
  • Compact and surface-mountable SOIC-16 package.
  • Optimized for low-power operation in portable devices.

Applications

  • Medical respiratory devices including CPAP machines and ventilators for monitoring breath pressure.
  • HVAC system airflow and duct pressure monitoring for energy efficiency and control.
  • Industrial gas flow measurement and low-pressure process monitoring.
  • Laboratory instrumentation for precise differential pressure sensing.
  • Portable diagnostic equipment requiring ultra-low pressure detection.

Technical Specifications

Manufacturer Part NumberSM9235-BCE-S-300-000
BrandTE Connectivity
Pressure TypeGauge
Pressure Range0 Pa to 300 Pa
Sensor TechnologySilicon Micromachined (SMI)
Output InterfaceDigital, 16-bit I2C
Supply Voltage3.0 V to 5.5 V DC
Accuracy±1% Full Scale
Operating Temperature-20°C to 85°C
Package TypeSOIC-16
Primary ApplicationsMedical Respiratory (CPAP, Ventilators), HVAC, Gas Flow Measurement, Industrial Low-Pressure Monitoring

Frequently Asked Questions

What is the pressure range and type of the SM9235 sensor?

The SM9235-BCE-S-300-000 is a gauge pressure sensor with an ultra-low measurement range from 0 to 300 Pascals (Pa). It is designed specifically for detecting very small differential pressures, such as those found in respiratory airflow or low-velocity gas flows.

How do I communicate with this pressure sensor?

The sensor features a standard digital 16-bit I2C interface. This allows for direct connection to microcontrollers like Arduino, Raspberry Pi, or STM32 using just two wires (SCL and SDA), plus power and ground. No external ADC or signal conditioning circuitry is required.

What is the required supply voltage and operating temperature?

The sensor operates from a wide supply voltage range of 3.0V to 5.5V DC, making it compatible with both 3.3V and 5V logic systems. It is rated for an operating temperature range of -20°C to 85°C, with built-in temperature compensation for stable readings across this range.

Is the sensor calibrated, and what is its accuracy?

Yes, the sensor is factory calibrated. It offers an accuracy of ±1% of Full Scale (FS) after performing an autozero command. This autozero function compensates for any offset drift, ensuring high precision for critical low-pressure measurements.

What are the typical applications for this sensor?

Its primary applications are in medical devices like CPAP machines and ventilators, HVAC systems for airflow control, and industrial settings for gas flow measurement and low-pressure process monitoring. Its compact SOIC package makes it suitable for space-constrained PCB designs.

Package Includes

  • 1 x TE Connectivity SM9235-BCE-S-300-000 Pressure Sensor

Additional Information

Weight 0.005 kg
Dimensions 1 × 1 cm