News: LEDs
21 November 2024
ams OSRAM launches Gen 3 OSLON Black Flat S surface-mount LEDs for automotive forward lighting
ams OSRAM GmbH of Premstätten, Austria and Munich, Germany says that its OSLON Black Flat S family of LEDs has established itself as a light source for forward lighting in both four- and two-wheeled vehicles, since its robust black leadframe QFN package is suited to automated SMT assembly, and is claimed to offer excellent contrast for use in reflector-based lamps.
However, the automotive forward lighting market is highly competitive, and manufacturers are always looking for ways to reduce cost by producing more light with fewer LEDs.
ams OSRAM has hence now introduced a new third generation of the OSLON Black Flat S, offering better performance and mechanical specifications alongside the established benefits of the black leadframe package.
The new Gen 3 products featuring the latest UX:3 chip, raising typical brightness per chip from 395lm at 1A/25°C in Gen 2 to 460lm. This performance is equivalent to that of the OSLON Compact PL Gen 3 products for automotive forward lighting, while the new OSLON Black Flat S family offers superior lumens/€, making it better suited to cost-sensitive forward lighting designs.
As with earlier generations, the OSLON Black Flat S Gen 3 is to be available in a range of one-, two-, three-, four- and five-chip versions.
The products’ package has what is claimed to be excellent thermal compatibility with metal-core (aluminium) PCBs, giving mechanical and electrical reliability in forward lighting systems. Due to their package’s thermally efficient chip-on-copper structure, the OSLON Black Flat S LEDs help automotive manufacturers to achieve excellent thermal management, the firm says.
Compared to Gen 2, the Gen 3 multi-chip products offer a tighter specification for package height – 0.49mm±0.6mm. This is in the same range as the height of the one-chip device, and allows OEMs to reduce the distance between the emitter and the optics for more efficient optical coupling.
ams OSRAM says that other features that automotive manufacturers have valued in the earlier generations are maintained in the new products: a uniform beam pattern, and consistent color over angle.
Apart from the 16% higher brightness, ams OSRAM has kept the mechanical, electrical and optical specifications of Gen 3 very similar to those of Gen 2. So, users of the earlier products can easily replace them with the new Gen 3 to upgrade headlamps, daytime running lamps (DRLs) and front fog lights.
Samples of the one-, two-, three- and four-chip products are available now, and production release is expected to be in early 2025.
Osram launches new generation of Oslon Compact PL and Oslon Black Flat S LEDs
