https://devzone.nordicsemi.com/f/nordic-q-a/8359/maximum-cpu-temperatureHi, In your documentation you specify the maximum CPU temperature 85 DegC. What problems could one expect after this point? How much safety margain du you have on this number? If I run the CPU at 90-100DegC, should I expect any problems?en-USTelligent Community 13Mon, 27 Jul 2015 14:48:00 GMThttps://devzone.nordicsemi.com/thread/30320?ContentTypeID=1Mon, 27 Jul 2015 14:48:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3c020952-a82b-4f55-8daa-4daea83ae1aaHung Bui<p>@victor: We have some variant that is recently qualified for the temperature range of -40 to 105oC. Please have a look <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf51.v1.0.0/pdflinks/51822_ps.html?resultof=%22%31%30%35%22%20">here</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/30319?ContentTypeID=1Fri, 24 Jul 2015 14:43:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4c453766-5029-412f-a75a-d70eb99110edsyntroniks<p>Yes, the thermal conductivity between die and package as well as the thermal conductivity between package and ambient need to be factored in.</p> <p>Knowing these, and the power dissipation of the microcontroller, you can estimate die temperature. Alternatively, you may use any onchip temperature sensors (usually a bandgap voltage if I remember right) to measure die temperature.</p> <p>Many silicon manufacturers list a 125C-150C maximum die temperature. Operation near and above that can cause unexpected operation. An analogy would be running your microcontroller at 1.1 volts. It MAY work, but it MAY not.</p> <p>Practically I wouldn&#39;t envision problems running at 100C ambient but I would never release a design to manufacture that operates in those conditions.</p><div style="clear:both;"></div>