PPT81 Analog High Temperature High Pressure Transducer

Home | Products | Pressure Solutions | PPT81 Analog High Temperature High Pressure Transducer

High Temperature Pressure Transducer

Phoenix Sensors is a US manufacturer of  pressure sensors like the PPT81 series. The PPT81 is a high temperature low Pressure sensor manufactured for the most challenging of applications.  This silicon pressure transducer was designed for industrial and commercial applications including automotive, energy and commercial applications.  The stainless steel design and high temperature analog component selection allows the sensor to be used in high temperature environments.

The PPT81 series utilizes MEMS piezo-resistive sensors pressurized on the passive backside of the SS housing which has superior long term stability and accuracy (TEB 1%).  For a smaller size transducer with a low price point for OEMs check out our PPT7Y series.

The design is simple, cost effective, and proves reliable for OEM customers.  Please contact us for Custom design availability.

PPT81 Specifications

  • Low Pressure
  • Media Isolated –SS316
  • -20-125°C Operating Temperature
  • Compact Size
  • TEB 1% (.25% Linearity Full Scale)
  • Ratio 0.5 – 4.5V, 1-5V, 4-20mA, RS485
  • 50-15,000 PSI pressure ranges
  • Gauge or Compound Pressure ranges
  • Media – Liquid, Air, & Gas
  • IP65 (IP67 Option available)

PPT81 Applications

  •  Consumer products
  •  Industrial Automation
  •  HVAC
  •  Automotive Engine
  •  Compressor
  •  Pneumatic


The one piece body design is made of stainless steel (SS316L), which allows for easy manufacturability and long term stability. Automotive grade vibration proof design for engine mount.


The silicon MEMS pressure sensor element is mounted to a ceramic base and sealed into the SS housing.  The selection of thermally capability materials reduce the mechanical stress on the sensor resulting in greater stability over time and temperature.

Additional stability is gained from factory stabilization of all sensors.

Pressure port

1/4” -18NPT and 1/8”-27NPT threads are standard SS fittings.  Other port fittings such as 7/16-20UNF, and  ¼” BSP are available for OEM customers.


The pressure port is tolerant to most media including but not limited to oil, air, gas, some corrosive media, and saltwater.

Wetted parts

When checking media capability, the wetted surface is composed of only stainless steel (316).

Pressure ranges

Standard pressure ranges are 50, 100, 150, 200, and 300 psi in compound and gauge. Custom pressure ranges are available for OEM customers.

high temperature low pressure sensor
Mechanical Attributes

IEC 61000-4-2 Electrostatic Discharge Immunity (8kV contact/15kV air) • IEC 61000-4-3 Radiated, Radio-Frequency Electromagnetic Field Immunity (10V/m, 80M-1GHz) • IEC 61000-4-4 Electrical Fast Transient Immunity (1kV) • IEC 61000-4-5 Surge Immunity (V+ to V-: ±2KV/42Ω; L to Case: ±1KV/12Ω; V- to V0: ±1KV/42Ω) • IEC 61000-4-6 Immunity to Conducted Disturbances Induced by Radio Frequency (10V) Fields (150K~80MHz, 10V level for voltage output models, 3V level for current output model) • IEC 61000-4-9 Pulse Magnetic Field Immunity (100A/m peak) For all CE compliance tests, max allowed output deviation ±1.5 %Span.