LR W5KM, LY W5KM Golden DRAGON® ARGUS® Enhanced Thinfilm LED is a red and yellow light emitting diode released by Renesas Electronics. The product has high luminous efficiency and small dimensions, and is suitable for applications such as display backlighting.
The LR W5KM (red) and LY W5KM (yellow) are white SMD thin‑film LEDs designed for display backlighting, automotive interior/exterior lighting, portable lighting and decorative applications. They feature a colorless clear silicone resin package and high luminous efficiency in a compact form.
Key specifications include peak wavelengths of 632 nm (red) and 597 nm (yellow), a 160° viewing angle, typical optical efficiency of 72 lm/W (red) and 74 lm/W (yellow) at 100 mA, forward voltage around 2.0 V, maximum forward current of 400 mA, and a power consumption of 1.1 W. The devices are supplied on 24‑mm tape with 200 units per reel (Ø180 mm) and require moisture‑sensitive handling per JEDEC standards. This manual is written in German.
| Peak wavelength (red / yellow) | 632 nm / 597 nm |
|---|---|
| Viewing angle (50 % intensity) | 160° |
| Optical efficiency at 100 mA | 72 lm/W (red), 74 lm/W (yellow) |
| Forward voltage (typical) | ≈2.0 V (red), ≈2.2 V (yellow) |
| Maximum forward current | 400 mA |
| Power consumption (25 °C) | 1.1 W |
| Thermal resistance (junction‑to‑solder) | 12 K/W |
| Package type | white SMD package, colorless clear silicone resin |
| Tape dimensions | 24 mm tape, 200 units/reel, Ø180 mm |
The red LR W5KM emits at 632 nm and the yellow LY W5KM emits at 597 nm.
The device is rated for a maximum forward current of 400 mA.
At 100 mA the optical efficiency is 72 lm/W for the red version and 74 lm/W for the yellow version.
They are supplied on 24‑mm tape with 200 units per reel and a reel diameter of 180 mm.