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I need a LED in an application, where the temperature cycles from 0 - 125 degree C. All I can find is LED´s that goes to 85 degree C, can that be true?

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    \$\begingroup\$ Colour? Power rating? Desired lifetime? Usage duration / duty cycle? Why 125C? More data gives better answers \$\endgroup\$
    – Russell McMahon
    Mar 6, 2013 at 14:07
  • \$\begingroup\$ The LED mentioned by Anindo GHosh looks possibly useful - datasheet here BUT note that 130 C is its maximum operating temperature and that it is derated at about 9 ma / degree C from 500 mA at 75C to 0 mA at 130C - or about 45 mA at 125 C. In practice you could PROBABLY run it slightly higher or hotter and accept a lower lifetime BUT you'd need to investigate further. Available at Digikey. \$\endgroup\$
    – Russell McMahon
    Mar 6, 2013 at 14:34
  • \$\begingroup\$ Highest I've found is 300 deg F look for work lights for high temp apps.MWL-14-extreme \$\endgroup\$
    – user35900
    Jan 21, 2014 at 17:54

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High temperature LEDs do exist in SMD form factors: Look for LEDs with full ceramic substructure and high temperature bonds (typically silver or silver-plated). These are designed to withstand temperatures up to and above 125 degrees Centigrade.

One such example is the ROHM PSL01 LED, that is rated for operation up to 130 degrees C.

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