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SM9543 Ultra Low Differential Pressure Sensor
Pressure Medium: Air/Gas
Sensor Type: Differential
Supply Voltage: Under 5V
Output Signal: Digital
Pressure Range: Under 4” H2O
Kind: Board Level

The SM9543 Series is an ultra low differential pressure sensor family offering state-of-the-art pressure transducer technology and CMOS mixed signal processing technology to produce a digital, fully conditioned, multi-order pressure and temperature compensated sensor in JEDEC standard SOIC-16 package with a dual vertical porting option.  

Not for new designs - SM7391-BCE-S-500-000 is the replacement part.

The pressure sensor can be mounted directly on a standard printed circuit board and a high level, calibrated pressure signal can be acquired from the digital interface. 


  • Fully digital, pressure calibrated and temperature-compensated output
  • I2C digital interface
  • Compensated temperature range of -5C up to 65C
  • Insensitive to mounting orientation
  • Robust JEDEC SOIC-16 package
  • Pressure ranges from ±5 mBar (±0.07 psi, ±2" H2O)