Optoelectronics

LEDs and Heat: Managed or Micromanaged?

26th August 2011
ES Admin
0
All of the focus on thermal management of light emitting diodes raises the question: is it always worth the cost? For LEDs, every penny must be applied efficiently. The benefits of lower junction temperature are well known, but there is a tipping point between investing additional product cost in thermal management and getting a return on that investment. Good thermal management starts with clear product and application definition.
Mechanical and electrical elements exclusive of thermal management materials may have a strong, unexpected impact on junction temperature. It is often possible to direct added cost to other parts of the product design to accomplish equal reduction in junction temperature while gaining performance in these other areas at the same time. Smart design and sound product development decisions will rightly
relegate thermal management materials to secondary status in products. Given a choice, the best place to invest is the LEDs themselves.


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