Using automotive qualified products such as the Oslon Black Flat range, Osram Opto Semiconductors has developed a new high power LED for outdoor applications. Called the Duris P10, it is claimed to set a new benchmark for outdoor robustness, reliability and efficiency.
Duris P10 was soldered on a PCB and underwent thermal cycling reliability tests at -40/85degC and -40/110degC. Even at 3000 cycles no wire bond or solder joint failures could be observed. This is not common in the market, where the average for this overstress is a 500 cycle stability.
“The Duris P10 offers a much lower thermal resistance with lower system cost than the competition (0,51 K/W of the Duris P10 vs. a range of 0,9-1,7 K/W of products from competitors) as well as higher reliability due to increased solder joint reliability.” says Chen Farn Hin, system expert for Solid State Lighting at Osram Opto Semiconductors. “It also has the advantage over traditional HID lighting because its lifecycle is not affected by the negative impacts of UV rays, chemicals and the corrosive effects of weather and pollution”.
LED components for Outdoor applications are required to meet challenging environmental conditions such as temperature variation from -40degC to +50degC or high humidity. It is important not only for the LED’s wire bond but also for the solder joint to meet outdoor reliability requirements. In case any one of them fails, it results in a malfunction of the luminaire.
The Duris P10 uses a special high quality metal lead frame as well as featuring optimised optics design for secondary lenses and reflectors to suit this diverse application field including luminaires for walkway illumination, flood light, wall washer, decoration and more.
In addition to long-term data that is available for previous products, LM-80 tests of DURIS P10 have passed 8000 hrs by now and show only minimal degradation behaviour, on the same level as ceramics-based products, according to the company.