Osram LTRB RASF Multi Chip LEDs
OSRAM LTRB RASF Multi-Chip LEDs arrange red, green, and blue chips in a triangular layout to optimize color mixing inside the package. These LEDs use a surface-mount package with silicone resin and support reflow soldering under JEDEC Level 2 preconditioning. The LTRB RASF LEDs emit at dominant wavelengths of approximately 530nm (green), 621nm (red), and 465nm (blue), feature Lambertian emission with a typical 120° beam angle, and operate over a temperature range from -40°C to +85°C. These devices are suitable for gaming and entertainment hardware, appliances and tools, backlighting such as LCDs, keys, switches, advertising, and light-guide coupling.
Features
- Color mixing optimized by triangular chip layout
- High ESD protection
- Lambertian emission pattern with a typical 120° beam angle
- Multi-chip design with red (Thinfilm), green, and blue (ThinGaN UX:3)
- Package type SMT with silicone resin
- Reflow soldering capability
Applications
- Advertising displays
- Backlighting
- Gaming and entertainment hardware
- Light-guide coupling
Technical Specifications
| Parameters | Values |
|---|---|
| Operating Temperature Range | -40°C to +85°C |
| Forward Current Range | 5mA to 30mA |
| Maximum Surge Current | 100mA |
| Maximum Withstand Voltage | 4kV |
| Peak Wavelength Range | 462nm to 632nm |
| Luminous Intensity Range | 2010mcd to 3550mcd |
Video
This TTI Tech Specs video for OsramLTRB RASF Multi Chip LEDs explains that the device is designed to simplify white binning and deliver high ESD robustness for pachinko and gaming use, with a triangular chip configuration that enables excellent in-package color mixing.
See the video transcript below
Video Transcript
To build a tough mindset, you need tools that can handle the pressure, and the ams OSRAM Multi Chip LED LTRB RASF.01 is built for it. This small RGB LED with separately controllable colors has a low height under 0.6mm, a durable silicone resin package and 120° viewing angle. It’s designed for tunable colors applications for visual effects in architectural lighting and gaming machines or for simple state indicators in consumer and industrial appliances. The triangular chip layout ensures excellent red, green, and blue color mixing. The Multi Chip LED delivers over 2000mcd of broad, ambient light brightness at the white point, and a color grouping closer to the Planckian locus. The extended availability cycle makes it a perfect choice for long-running designs. The ESD rating up to 4kV and high 2B corrosion robustness makes it suitable for harsher environments. The flip chip technology eliminates bond wires for enhanced durability and better color uniformity.
