Home Support Operating EXALOS SLEDs and Controllers How should I control the SLED temperature?

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FAQ

How should I control the SLED temperature?

Answer

All standard EXALOS products packaged in DIL or Butterfly package contain a Thermo Electric Cooler (TEC) inside the package and a negative temperature coefficient (NTC) thermistor is placed in close proximity to the SLED chip. Employing a suitable external heat sink and control electronics allows for the stabilization of the chip temperature against environmental variations.

As standard, the chip temperature should be set to 25°C for the short-wavelength SLEDS (730 to 900nm) and to 20°C for the long-wavelength SLEDs (1250 to 1700nm). Please download our Applications Notes for more details.