Cree J Series® JE2835 Royal Blue LED — 450–460 nm (3 V)

The Cree J Series® JE2835 Royal Blue is a high-performance mid-power colour LED in a compact 2.8 × 3.5 mm package, ideal for linear and low-density lighting where spectral precision and reliability matter. With a typical forward voltage of ~2.96 V at 140 mA and dominant wavelength binned at D3–D4 (450–460 nm), this device delivers strong radiant output for horticulture (450 nm blue drive), reef/actinic accents, architectural effects and transportation lighting. Typical radiant flux is ~272 mW at 140 mA, with a maximum continuous drive current of 240 mA (observe thermal design limits). :contentReference[oaicite:0]{index=0}

Key Benefits

• Precisely binned Royal Blue at 450–460 nm for consistent spectral targeting.
• Mid-power efficiency with ~272 mW typ radiant flux at 140 mA for strong blue drive. :contentReference[oaicite:1]{index=1}
• Thermally considerate design: ~10 °C/W (junction-to-solder point) for easier heat management in dense arrays. :contentReference[oaicite:2]{index=2}
• Wide optical spread (FWHM ~124°) for uniform linear and panel illumination. :contentReference[oaicite:3]{index=3}
• Industry-standard 2835 footprint simplifies drop-in upgrades and multi-brand compatibility. :contentReference[oaicite:4]{index=4}
• Quality & compliance: RoHS/REACH, UL recognised component (E495478). :contentReference[oaicite:5]{index=5}

Typical Applications

• Horticultural fixtures (blue fraction at ~450 nm to drive vegetative photomorphogenesis)
• Reef/actinic accent lighting and aquarium bars
• Architectural feature and cove lighting, edge-lit signage
• Vehicular/transportation and marine effect lighting (where permitted)

Technical Specifications (from datasheet)

Values are typical unless noted; always review bin/lot labels and design to the datasheet’s limits and derating curves. :contentReference[oaicite:6]{index=6}

Design & Assembly Notes

• Drive from a regulated constant-current source; observe maximum current vs ambient/board R_θJA derating.
• Provide adequate copper area and thermal path to keep junction temperature low for lifetime and stability.
• Follow the datasheet land-pattern and reflow profile for 2835 packages; avoid mechanical stress post-reflow.

What’s Included

JE2835 Royal Blue bare LEDs supplied on tape-and-reel (MOQ/packaging as per lot). Binning information included on reel label. :contentReference[oaicite:7]{index=7}