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Re: redspinelpinktopaz post# 160597

Saturday, 09/30/2023 2:40:15 PM

Saturday, September 30, 2023 2:40:15 PM

Post# of 195867
Data Set:
The data collected from ALT (accelerated life testing) under extreme conditions and may include some of the following:

1) Temperature extremes
2) Humidity extremes
3) Power (cycling)
4) Voltage extremes

From this testing we obtain data representing early failure stats, normal lifetime failure stats, and end of life stats. The data that gives this "bathtub curve" effect makes up the data sets.

Generally, however, the industry wants to know about the reliability and photo stability.

As an example of the data that might be collected and how to predict life expectancy:

4) Voltage:
Under extreme voltage testing, 1000 hours of operation is used and life expectancy of devices surviving the 1000 hours is predicted to be a factor of 560.
So 1000 hours = 1000x 560 = 560,000 which equates to a life expectancy of 64 years.

Similar testing can be done for photo stability. I don't have the factor used for predicting life expectancy for this (yet).

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