This document describes the features and characteristics of LA W57B, LY W57B Golden DRAGON® Lead (Pb) Free products. The product is a point lightsource with high luminous efficiency and low space requirements. It is packaged in a white SMD package with colorless clear resin, and can achieve a maximum luminous flux of up to 17.6 lumens. The wavelengths are 617 nm (amber) and 587 nm (yellow), with a viewing angle of 120 degrees. The product is suitable for various SMT assembly techniques and can be used in traffic signals, backlighting, automotive interior and exterior lighting, replacement of miniature incandescent lamps, portable lighting, decorative light guide applications, signal and symbol lights, and facade lighting in indoor and outdoor areas.
The Golden DRAGON® LEDs (LA W57B, LY W57B) are lead‑free, RoHS‑compliant InGaAlP devices offered in amber (617 nm) and yellow (587 nm). They are suited for traffic signaling, automotive interior/exterior lighting, backlighting, decorative lighting and portable applications such as bicycle lights.
Key specifications include a typical luminous flux of up to 17.6 lm at 600 mA, a viewing angle of 120°, optical efficiency of 20 lm/W, and robust electrical ratings such as 2 kV ESD protection. The components operate from –40 °C to +100 °C and are supplied on 24‑mm tape reels. This manual is written in German.
| Peak wavelength | 617 nm (amber), 587 nm (yellow) |
|---|---|
| Viewing angle | 120° (Lambertian) |
| Maximum forward current | 400 mA (25 °C) |
| Operating temperature range | -40 °C to +100 °C |
| Junction temperature max | +125 °C |
| ESD withstand voltage | up to 2 kV (JESD22‑A114‑B) |
It is ESD‑safe up to 2 kV according to JESD22‑A114‑B.
The device can operate from –40 °C to +100 °C.