
Cree LED CLA1B-WKW-XE0F0503 High-Intensity PLCC4 Cool White SMD for Signaling and Indicators
Commercial & Engineering Summary:
* Manufacturer: Cree LED (High-Reliability PLCC4 Series)
* Color Profile: Cool White (Optimized for Visibility)
* Package Type: Industry-standard PLCC4 (3.2 x 2.8 mm)
* Luminous Intensity: High-output binning (~2240 - 5600 mcd @ 30mA)
* Viewing Angle: 120° (Wide Lambertian distribution)
* Lead-Frame Design: Enhanced 4-pin layout for superior thermal dissipation.
* Compliance: RoHS & REACH compliant; Industrial/Automotive grade reliability.
* Supply Status: Bulk stock in factory-sealed reels; Full batch traceability for OEMs.
Description
Product Details
Cree LED CLA1B-WKW High-Intensity PLCC4 Cool White SMD for Signaling and Indicators. The Cree LED CLA1B-WKW series represents a significant step up in reliability for white SMD components. Utilizing the professional PLCC4 package, the CLA1B-WKW-XE0F0503 is engineered specifically for applications where standard PLCC2 LEDs might fail due to thermal stress. This component is the primary choice for LED module manufacturers and automotive lighting designers who require consistent cool white output and high radiant intensity in a compact 3.2 x 2.8 mm footprint.
Built on a stable lead-frame platform, the CLA1B-WKW ensures that the white spectrum remains crisp and uniform throughout its operational life. The 4-pin design isn't just for mechanical stability; it facilitates an efficient thermal path, protecting the phosphor layer from premature degradation and maintaining a stable CCT (Correlated Color Temperature) in high-ambient-temperature environments.
Critical Engineering Advantages
- Superior Thermal Management (PLCC4): Unlike traditional 2-pin SMDs, the PLCC4 architecture allows for better heat dissipation from the InGaN chip to the PCB copper traces. This results in a lower junction temperature, which is essential for maintaining lumen maintenance in enclosed signage or automotive dash modules.
- High Luminous Intensity (mcd): Binned for maximum candela output at 30mA, this LED provides the high-contrast "daylight" white required for visibility in bright outdoor environments and critical status indicators.
- Industrial-Grade Material Science: Utilizing advanced UV-inhibitor resins and high-quality packaging materials, the CLA1B series resists yellowing and moisture ingress, ensuring an excellent L70 lifespan for 50,000+ hour commercial projects.
- Uniform Wide-Angle Distribution: The 120-degree viewing angle eliminates "spotting" in edge-lit panels and channel letters, providing a perfectly smooth light distribution across the diffusion surface.
| Parameter | Performance Specification |
| Footprint Dimensions | 3.2 mm x 2.8 mm (PLCC4) |
| Dominant Wavelength | Cool White (Daylight Range) |
| Luminous Intensity | High-output XE0 Bin Tier |
| Viewing Angle | 120° |
| Typical Forward Voltage | 3.2 V |
| Maximum Forward Current | 50 mA (Continuous) |
| Operating Temperature | -40 °C to +100 °C |
| Moisture Sensitivity | MSL 5a |
Practical Application Scenarios
- Channel Letters & Signage: High-uniformity white light for professional branding and 24/7 informational signage.
- Automotive Interior & Indicators: Reliable emitters for dashboard backlighting, switches, and interior courtesy lights.
- Billboard & Lightbox Arrays: Consistent daylight-white arrays for large-scale outdoor advertising displays requiring uniform CCT.
- Industrial Status Boards: Durable, high-visibility white indicators for control panels and safety machinery.
Why Source through Gainer LED?
- In the specialized electronic component distribution landscape, Gainer LED bridges the gap between Cree's manufacturing schedules and your localized production needs.
- Verified Batch Integrity: We guarantee 100% original Cree stock in factory-sealed reels. We understand that authorized agents and EMS providers cannot tolerate mixed-bin shipments.
- Supply Chain Stability: We maintain strategic inventory of the CLA1B series to protect our B2B partners from semiconductor market fluctuations.
- Technical Compliance: All components are managed with full traceability and documentation (RoHS, REACH, CoC), ensuring your finished modules are ready for global export.
FAQ
Q: Why choose PLCC4 over the standard PLCC2 footprint for white LEDs?
A: PLCC4 provides an additional thermal path through its four leads. For white LEDs, managing heat is critical to prevent the phosphor from yellowing. PLCC4 ensures the CCT stays stable longer, especially if you are driving the LED closer to its maximum current.
Q: Is the CLA1B-WKW compatible with existing PLCC2 PCB layouts?
A: No, the pad layout for PLCC4 is different. However, the external dimensions (3.2x2.8mm) are similar. We recommend updating your PCB design to take full advantage of the PLCC4's thermal benefits.
Q: How does Gainer LED manage moisture sensitivity (MSL) for these parts?
A: Since the CLA1B is MSL 5a, we store all stock in climate-controlled environments and ship in original vacuum-sealed MBB (Moisture Barrier Bags). We recommend SMT assembly within the specified floor life once the seal is broken.
Q: Can I get specific binning for a large-scale project?
A: Absolutely. We understand that for signage, color matching is paramount. We can coordinate wholesale shipments from the same binning group to ensure uniform performance across your entire production run.
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