Pressure sensors
Pressure transmitters for PCB mounting (voltage output)
AC-T series
Cautions and warnings
Storage (general)
All pressure sensors should be stored in their original packaging. They should not be placed in
harmful environments such as corrosive gases nor exposed to heat or direct sunlight, which may
cause deformations. Similar effects may result from extreme storage temperatures and climatic
conditions. Avoid storing the sensor dies in an environment where condensation may form or in a
location exposed to corrosive gases, which will adversely affect their performance. Plastic materials
should not be used for wrapping/packing when storing or transporting these dies, as they may
become charged. Pressure sensor dies should be used soon after opening their seal and packaging.
Operation (general)
Media compatibility with the pressure sensors must be ensured to prevent their failure. The use of
other media can cause damage and malfunction. Never use pressure sensors in atmospheres
containing explosive liquids or gases.
Ensure pressure equalization to the environment, if gauge pressure sensors are used. Avoid
operating the pressure sensors in an environment where condensation may form or in a location
exposed to corrosive gases. These environments adversely affect their performance.
If the operating pressure is not within the rated pressure range, it may change the output
characteristics. This may also happen with pressure sensor dies if an incorrect mounting method is
used. Be sure that the applicable pressure does not exceed the over pressure, as it may damage the
pressure sensor.
Do not exceed the maximum rated supply voltage nor the rated storage temperature range, as it may
damage the pressure sensor.
Temperature variations in both the ambient conditions and the media (liquid or gas) can affect the
accuracy of the output
signal from the pressure sensors. Be sure to check the operating temperature range and thermal error
specification of the pressure sensors to determine their suitability for the application.
Connections must be wired in accordance with the terminal assignment specified in the data sheets.
Care should be taken as reversed pin connections can damage the pressure transmitters or degrade
their performance. Contact between the pressure sensor terminals and metals or other materials may
cause errors in the output characteristics.
Design notes (dies)
This specification describes the mechanical, electrical and physical requirements of a piezoresistive
sensor die for measuring pressure. The specified parameters are valid for the pressure sensor die
with pressure application either to the front or back side of the diaphragm as described in the data
sheet. Pressure application to the other side may result in differing data. Most of the parameters are
influenced by assembly conditions. Hence these parameters and the reliability have to be specified for
each specific application and tested over its temperature range by the customer.
SEN PS PD T
2020-06-09
Please read Cautions and warnings and
Page 7 of 10
Important notes at the end of this document.
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