SPA 401 Series Pressure Sensors

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The SPA 401 Series offers piezoresistive silicon, stainless steel pressure sensors. Product highlights include excellent overpressure characteristics and chemical resistance. Media isolated sensors are designed to operate in hostile environments and yet give 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 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 design of pressure sensor is at a minimum volume so the accuracy is greatly improved. The SPA 401 silicon pressure sensor is a thermally compensated device and has am amplified output with a ratiometric output signal (10% to 90% of supply voltage). This new pressure sensor offers design engineers excellent performance in various applications, especially for low pressure and smaller solutions. 

  • Features

    • 1.5 to 100 PSI
    • -40 to 125°C Temperature Range
    • Calibrated and compensated Output
    • Supply voltage 2.7 to 5.5VDC
    • High accuracy (max 0.25% linearity and max 0.05% hysteresis) 

  • Applications

    • Medical Devices
    • Process Control & Monitoring Systems 
    • Environmental Controls
    • HVAC 
    • Laboratory & Calibration Applications

equivalent Circuit

Pressure Sensor Maximum Ratings

Supply Voltage Vs

Supply voltage 2.7 to 5.5VDC

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
1.5 PSI -- -- SPA401G-PL15xxxxxxxxxxxx
3 PSI -- -- SPA401G-P003xxxxxxxxxxxx
5 PSI -- -- SPA401G-P005xxxxxxxxxxxx
15 PSI -- -- SPA401G-P015xxxxxxxxxxxx
30 PSI -- -- SPA401G-P030xxxxxxxxxxxx
50 PSI -- -- SPA401G-P050xxxxxxxxxxxx
100 PSI -- -- SPA401G-P100xxxxxxxxxxxx
Special pressure ranges -- -- SPA401G-9999xxxxxxxxxxxx
 

SPA401G-P003xxxxxxxxxxxx Performance Characteristics

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PARAMETER MIN NOM MAX UNITS Notes
Standard Pressure Ranges - - - - -
Output Signal (Offset) - N/A V 5 V N/A V -
Output Signal (Span) - N/A V 5 V N/A V -
Supply/Performance Characteristics - - - - -
Supply voltage (V) - 2.7 5.0 5.5 -
Current consumption (mA) - 2.5 max. 2.5 max. 2.5 max. -
Linearity [%FS0 BFSL] - - 0.25 ± 0.1 0.25 -
Hysteresis [%FSO] - - 0.1 ± 0.05 0.1 -
Output load resistance [kΩ] ≥ 5 - - - -
Insulation resistance [MΩ] 50 (between housing and sensor chip) @ 50 VDC - - - -

Standard Pressure Range

Operating Range

0 - 3 PSI

Proof Pressure

30 PSI

Negative Pressure

- 15 PSI

Burst Pressure

45 PSI

Specification notes