LD W51M, LB W51M, LT W51M Golden DRAGON® with Lens is a product of OSRAM, with the white SMD package, the feature of high luminous efficiency and small dimensions, the wavelength range of 455 nm (deep blue), 470 nm (blue) and 528 nm (true green), the viewing angle of 20 °, the ThinGaN technology, the maximum light efficiency of 43% (deep blue), 25 lm/W (blue), 90 lm/W (true green), suitable for all SMT mounting techniques, and can be used for decorative lighting, signal lights and signal lights, marking lights, facade lighting, window lighting and effect lighting.
The OSRAM W51M series includes three LED variants (LD, LB, LT) featuring ThinGaN technology, narrow 20° viewing angle and high optical efficiency (up to 43% with lens). The components are supplied in white SMD packages with clear silicone resin and are RoHS‑compliant.
The datasheet provides detailed electrical characteristics, maximum ratings, wavelength groups, brightness group tables and recommended assembly methods, along with typical applications such as decorative lighting, signage, façade illumination and effect lighting. This manual is written in German.
| Wavelength (deep blue) | 455 nm |
|---|---|
| Viewing angle | 20° (narrow) |
| Maximum optical efficiency (with lens) | 43 % (deep blue) |
| Forward voltage (typical) | 3.2 V |
| Forward current (max) | 400 mA |
| ESD withstand voltage | 2 kV |
The series offers deep blue at 455 nm, blue at 470 nm, and true green at 528 nm.
The maximum forward current is 400 mA (at 25 °C).
Yes, the product is lead‑free and RoHS compliant.