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SMP31A 15-100 psi Compensated Pressure Sensor With Analog Output
Pressure Medium: Air/Gas
Sensor Type: Absolute
Supply Voltage: Under 5V, 5V
Output Signal: Voltage
Pressure Range: 3-300 psi
Kind: Board Level

The SMP31A Series are fully compensated high performance die in a plastic surface mount package. They are absolute pressure sensors fabricated by bonding a micromachined silicon diaphragm to Pyrex glass in a vacuum. Uniform span and offset distribution results from precise implant and etching control. The result is long-term offset stability that is suitable for barometric pressure measurement.

The output is compensated via onboard signal conditioning using the latest ASIC technology. The small package makes this model an ideal product for customers looking for compensated absolute pressure measurement in the smallest possible surface mount package. An uncompensated version of this model, the SMP31 is also available.


  • 6 pin plastic surface mount
  • Analog voltage output
  • Absolute pressure in either 15 psi or 30 psi
  • Operating voltage choices of 2.7V to 3.3V or 4.5V to 5.5V

Typical Uses

  • Barometric Pressure
  • Altimeter
  • Medical Devices
  • White Goods