Osram introduces new OSTAR Compact LED products with up to 6A

OSRAM Opto Semiconductors introduces the new OSTAR Compact, which handles higher currents and has lower thermal resistance. It can handle up to 6A in pulse mode and is ideal for miniature and pocket projectors for small mobile devices. New high-current LEDs can greatly increase brightness, depending on the design of the small projector.

With a higher output brightness and an area of ​​only 3.9 mm x 3.6 mm, the new OSTAR Compact is suitable for the same package of the previous generation, so small projectors can achieve higher brightness by maintaining the same size design. The new LED can be pulsed to input 6 A, which is better than 4 A, and in pulse mode (typically 120 Hz, 2 ms, Ts = 25 °C), the amber luminous flux can reach 350 lm. Green up to 600 lm and blue up to 165 lm. Due to the use of new packaging materials, the thermal resistance is reduced from 6 K/W of the previous generation to 3 K/W, so the heat dissipation efficiency is better. The 2 mm2 chip uses a modified epitaxial process and uses more bond wires to average the power distribution, improving the performance of high-power LEDs. Wolfgang Schnabel, Marketing Manager, LED Projection Division, Osram Opto Semiconductors Germany, said: "This way we can design small LEDs that can handle higher currents. The new OSTAR Compact offers higher luminous power for small projector designs, The device maintains a small size, but the brightness is greatly improved.

New LEDs with high current handling expand the OSTAR Compact LED portfolio for projection applications. The portfolio also includes LEDs with a chip edge length of 750 μm and a variety of color LEDs using 1 mm2 chips.