Piezoresistive Silicon Pressure Sensor (89BSD)

TE Sensor Solutions
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The 89BSD is a 9mm diameter small profile, media compatible, piezoresistive silicon pressure sensor packaged in a 316L stainless steel housing. This low power 24-bit ΔΣ ADC digital output pressure sensor supports an I²C interface protocol and is designed for threaded o-ring mounting. A custom ASIC is used for temperature compensation and offset correction. The sensing package utilizes silicone oil to transfer pressure from the 316L stainless steel diaphragm to the sensing element. A flex cable allows the 89BSD to connect to a smaller connection terminal where size is of primary concern. The 89BSD is designed for high performance, low pressure applications.


  • Threaded/Weldable
  • I2C Interface
  • Low Power:<1μA
  • Standby Power:<0.15μA
  • Supply Voltage: 1.8 to 3.6Vdc


  • Level Controls
  • Tank Level Measurement
  • Corrosive Fluids and Gas Measurement Systems
  • Sealed Systems
  • Manifold Pressure Measurement
  • Barometric Pressure Measurement
  • Dive Computers