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Topic: Reliability of Yun runs 7/24 (Read 708 times) previous topic - next topic

sonnyyu

May 20, 2015, 05:43 am Last Edit: May 20, 2015, 05:44 am by sonnyyu
Yun has few ICs.

IC grade:

  • Commercial: 0°C to 85°C
  • Industrial: −40°C to 100°C
  • Automotive: −40°C to 125°C
  • Extended: −40°C to 125°C
  • Military: −55°C to 125°C


ICs might be only Commercial grade unless premium paid.

Yun might failed at 7/24 outdoor environment.

http://forum.arduino.cc/index.php?topic=323417.msg2234829#msg2234829




Hasr

How do I know which one I have?

sonnyyu

Most likely is Commercial: 0°C to 85°C.

To confirm:

Drop a line to Yun ODM (Original design manufacturer)

http://www.linino.org/

or

Post here

http://www.linino.org/forum/



sonnyyu

#3
May 20, 2015, 02:40 pm Last Edit: May 20, 2015, 02:42 pm by sonnyyu
Aluminum electrolytic capacitor:



Cold temperature with these capacitors can result in significant increase in ESR as shown in Figure. In this case, the resistance can increase as much as an order of magnitude at  -40 C.




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