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Rutronik is now stocking the new OSTAR Compact from OSRAM Opto Semiconductors which offers high-current capability and lower thermal resistance. It can handle up to 6A in pulsed mode which is suitable for pico and pocket projectors for small mobile terminals. Depending on the design of small projectors these high-power LEDs can provide enhanced brightness.
The LED offers more light output and with 3.9mm x 3.6mm it is accommodated in the same package as the previous version. Thus small projectors can be designed for more brightness without increasing their size. Instead of 4A, the new LED can now be pulsed with 6A, and it achieves 350lm in amber, 600lm in green and 165lm in blue in pulsed mode (typically 120Hz, 2ms, Ts= 25°C). Thanks to a new package material its thermal resistance has been reduced to 3K/W compared to 6K/W of the old version. The enhanced performance of the high-power LED is achieved by a 2mm² chip that benefits from improved epitaxy processes and from a more even power distribution via additional bond wires.
