Hello Charlie,
I hope all is great with you. Thank you for using the NXP communities.
You are correct, the storage temperature of the MPXAZ6115AP device goes from -40C to 125C.
Unfortunately, we have never tested the behavior of this device at -54C, and I personally do not recommend using at that temperature. it’s probable that it will have some issues on the resolution sensing.
As you approach such temperatures levels, you approach a critical temperature at which the gel's crystalline structure can change, and if this happened, it would produce a permanent change in gel performance. That said, there is risk that any duration of exposure to -54C will cause the gel property change, so it would be very risky for you to expose the devices to that range of extreme temperature. In this case, it would your responsibility to determine the reliability of the device in your storage application, and we will certainly not recommend storage at -54°C.
I hope this information helps.
Regards,
David
