SPM 402 Series

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The SPM 402 Series offers piezoresistive silicon, stainless steel pressure sensors. Media isolated sensors are designed to operate in hostile environments, yet provide the outstanding sensitivity, linearity, and hysteresis of a silicon sensor. This pressure sensor is compatible with 316L stainless steel, a type of steel that increases corrosion resistance, improves resistance to pitting from chloride ion solutions, and provides increased strength at high temperatures.

 

The piezoresistive sensor chip is housed in a fluid-filled cylindrical cavity and isolated from measured media by a stainless steel diaphragm and body. The oil-filled cavity in this unique pressure sensor design is at a minimum volume so the accuracy is greatly improved. The SPM 402 silicon pressure sensor is a thermally compensated device and has a millivolt output of up to 210mV at a 1mA supply current (or supply voltage 10V). This new pressure sensor offers design engineers excellent performance in various applications, especially for mid to high pressure and smaller solutions. 

  • Features

    • 5 to 500 PSI
    • -40 to 125°C Temperature Range
    • Calibrated and compensated output
    • Supply voltage 10V
    • High accuracy (max 0.25% linearity and max 0.05% hysteresis) 

  • Applications

    • Medical Devices
    • HVAC Controls
    • Laboratory & Calibration Applications
    • Hydraulic Biomedical Instruments

equivalent Circuit

Pressure Sensor Maximum Ratings

Supply Voltage Vs

10V

Environmental Specification

Temperature Ranges

-40 to 125°C

Storage Temperature Range

-40 to 125°C

Medium Temperature Range

-40 to 125°C

Available Package

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Choose A Part Number Below To View Performance Characteristics

Pressure Range Differential Absolute Gauge
5 PSI -- -- SPM402G-P005xxxxxxxxxxxx
15 PSI -- SPM402A-P015xxxxxxxxxxxx SPM402G-P015xxxxxxxxxxxx
30 PSI -- SPM402A-P030xxxxxxxxxxxx SPM402G-P030xxxxxxxxxxxx
50 PSI -- SPM402A-P050xxxxxxxxxxxx SPM402G-P050xxxxxxxxxxxx
100 PSI -- SPM402A-P100xxxxxxxxxxxx SPM402G-P100xxxxxxxxxxxx
300 PSI -- SPM402A-P300xxxxxxxxxxxx SPM402G-P300xxxxxxxxxxxx
500 PSI -- SPM402A-P500xxxxxxxxxxxx SPM402G-P500xxxxxxxxxxxx
 

SPM402G-P005xxxxxxxxxxxx Performance Characteristics

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PARAMETER MIN NOM MAX UNITS Notes
Standard Pressure Ranges - - - - -
Output Signal (Offset) - - 2 mV 0 mV 2 mV -
Output Signal (Span) - 50 mV 75 mV 100 mV -
Supply/Performance Characteristics - - - - -
Supply current (mA) - - 1 mA 3 mA -
Supply voltage (V) - - - 10 V -
Linearity [%FS0 BFSL] - - 0.25 ± 0.1 0.25 -
Hysteresis [%FSO] - - 0.05 ± 0.03 0.05 -
Input impedance [kΩ] 4.0 to 6.0 - - - -
Output impedance [kΩ] 4.0 to 6.0 - - - -
Insulation resistance [MΩ] 50 (between housing and sensor chip) A@ 50 VDC - - - -

Standard Pressure Range

Operating Range

0 - 5 PSI

Proof Pressure

30 PSI

Negative Pressure

-

Burst Pressure

45 PSI

Specification notes