Contact us to request more information about this model, including customization options

Contact Us

The AST20SW is a high accuracy Industrial ASIC Pressure Switch, designed for use in a variety of applications.  Applying digital compensation, this product offers top performance over a wide temperature range. Utilizing Krystal Bond Technology™, the sensing element will measure pressure in the most extreme temperature conditions. Where other sensor technologies will freeze or boil, the 20SW uses a one piece stainless steel sensor to offer continuous operation. If linearity and repeatability are critical for your application, this product will exceed your expectations at an affordable price.  


  • ASIC Compensation 
  • Superb Temperature Performance 
  • Wide Operating Temperature Range 
  • Excellent Accuracy 
  • High Proof and Burst Pressure 

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Sensor Type  Industrial Pressure Transducers

  • Type  Absolute, Compound, Gage, Sealed

Electrical Characteristics

  • Supply Voltage (V) 10 – 28

  • Electrical Connection  6 Pin Bendix PT06A, Cable 10 ft, Cable 2 ft, Cable 4 ft, Cable 6 ft, DIN 43650A, M12x1, Mini-DIN 43650C

Body Features

  • Port Material  17-4PH, 316L, Alloy 718, Alloy C276

  • Pressure Port/Fitting  1/2 MNPT, 1/4 FNPT, 1/4 MBSPP, 1/4 MNPT, 1/8 MNPT, 7/16-20 UNF Female, 7/16-20 UNF Male, 9/16-18 UNF Male 37°, F250C Female, G1/4 3852 Male

Usage Conditions

  • Operating Temperature -40 – 85 °C [ -40 – 185 °F ]


  • Pressure Range  0-25 to 45000psi

  • Output/Span  SPDTFormC

  • Accuracy  ±0.1% FSO

  • Overpressure  2X, Min


  • Options  Custom Switch Points, Sealed Gage, Snubber

Related Materials

Terms and Conditions

Please carefully read the disclaimer before using any of this data.
Your use of this data constitutes your acceptance of the terms and conditions set forth below. If you do not agree to those terms and conditions, please click on the I Disagree link.

This information has been provided to you free of charge for your use but remains the sole property of Tyco Electronics Corporation ("TE"). While TE has used reasonable efforts to ensure its accuracy, TE does not guarantee that it is error-free, nor makes any other representation, warranty, or guarantee that the information is completely accurate or up-to-date. In many cases, the CAD data has been simplified to remove proprietary detail while maintaining critical interface geometric detail for use by customers. TE expressly disclaims all implied warranties regarding this information, including but not limited to any implied warranties or merchantability or fitness for a particular purpose.