Sensirion's new SHT21 humidity and temperature sensor has now been
qualified in accordance with the AEC-Q100 automotive standard. This
confirms the reliability, stability and robustness of the sensor, which
has been in regular production since April 2010.
During the qualification process, the SHT21 was put through
the relevant series of tests. Its aging resistance was confirmed by the
High Temperature Operating Lifetime (HTOL) test, and its stress
resistance was demonstrated by the Unbiased Highly Accelerated Stress
Test (UHST). Furthermore, a Temperature Cycling (TC) test confirmed the
compatibility of the packaging material with the chip and substrate, and
the Electrostatic Discharge (ESD) and Electromagnetic Compatibility
(EMC) tests proved the robustness of the sensor with regard to these
The SHT21 humidity sensor passed all the tests without any permanent
changes to its characteristics and therefore fulfilled the quality
requirements of the AEC-Q100 automotive standard. This qualification,
along with the reliability, stability and robustness it certifies,
allows users to employ the SHT21 with confidence and the assurance of
proper, trouble-free operation.
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