Product Overview
LD-4751 is a high-performance yellow LED phosphor with a peak emission wavelength precisely positioned at 567.1nm, a dominant wavelength of 575.9nm, and a color coordinate of x=0.4806, y=0.5085. With a relative intensity of 90% and a color temperature of 4000K, it provides balanced warm white light output and serves as a key component for LED white light synthesis.
With its optimized spectral characteristics and 124.6nm FWHM, LD-4751 is suitable for DIP or SMD packaging and can be widely applied in general lighting, commercial lighting, and residential lighting requiring neutral white light with excellent color rendering.
Core Advantages
🟡 Balanced Yellow Light 567.1nm peak wavelength providing balanced yellow light output for neutral white light synthesis. | ⚡ Reliable Brightness 90% relative intensity ensuring consistent light output and luminous efficiency. |
🌡️ Neutral Color Temperature 4000K color temperature providing comfortable neutral white light suitable for various applications. | 🔧 Versatile Packaging Suitable for both DIP and SMD packaging formats with flexible particle size options (7μm or 12μm). |
Not sure if this phosphor fits your application?Our engineers help 200+ companies find the right phosphor every month. Try our selection tool or talk to an expert. |
Key Performance Data
567.1 nm Peak Emission Wavelength | 575.9 nm Dominant Wavelength |
(0.4806, 0.5085) CIE Color Coordinates | 4000 K Color Temperature |
90% Relative Intensity | 124.6 nm FWHM |
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Product Model | LD-4751 | DIP or SMD |
| Peak Emission Wavelength | 567.1 nm | Yellow Light Region |
| Dominant Wavelength | 575.9 nm | Visual Yellow Light |
| Full Width at Half Maximum (FWHM) | 124.6 nm | Broad Spectrum |
| CIE Chromaticity Coordinates | x=0.4806, y=0.5085 | Yellow Region |
| Color Temperature (Tc) | 4000 K | Neutral White Light |
| Relative Intensity | 90% | Consistent Performance |
| Particle Size (D50) | 7 μm or 12 μm | Optional Sizes |
| Compatible Chip Wavelength | 465-470 nm | Blue Light Excitation |
| *All data are measured under standard laboratory testing conditions. Shelf life: 12 months. | ||
Performance Analysis
📊 Spectral Distribution
The spectral distribution shows a broad peak at 567.1nm with 124.6nm FWHM, indicating balanced yellow light emission suitable for white light synthesis. | 📉 CIE Chromaticity Diagram
The chromaticity coordinates position the phosphor in the yellow region of the CIE diagram at (0.4806, 0.5085), confirming its balanced yellow color characteristics. |
Recommended Applications
💼 Office Lighting 4000K neutral white light provides comfortable working environment with balanced brightness and color rendering. | 🏠 Residential Lighting Modern home lighting requiring comfortable neutral white light for living rooms, kitchens, and bedrooms. |
🛍️ Commercial Lighting Retail stores, supermarkets, and shopping malls requiring consistent neutral white light for product displays and customer comfort. | 🎓 Educational Lighting Classrooms, libraries, and educational facilities requiring comfortable lighting that enhances learning and reading experiences. |
🚀 READY TO GET STARTED? Test This Phosphor in Your ApplicationRequest a free sample to evaluate LD-4751 in your production environment, or contact our application engineers for technical support. 🚚 Ships in 3 business days ⏰ Reply within 24 hours 📜 COA included |
Why Choose LD-4751?
🟡 Balanced Yellow Output 567.1nm peak wavelength provides balanced yellow light for optimal white light synthesis with 4000K color temperature. | ⚡ Consistent Performance 90% relative intensity ensures reliable and consistent light output across different operating conditions. |
🌡️ Comfortable Color Temperature 4000K neutral white light provides comfortable illumination suitable for extended periods of use in various settings. | 🔧 Flexible Packaging Options Available in both DIP and SMD packaging formats with optional particle sizes (7μm or 12μm) to meet different application needs. |
Packaging & Storage
| Packaging | High-seal moisture-proof bottles (100g, 500g, 1kg specifications available) |
| Storage Conditions | Store sealed in dry, cool environment (≤25℃, ≤60%RH). Avoid sunlight and corrosive gases. |
| Shelf Life | 12 months sealed; use within 6 months after opening. |
Frequently Asked Questions (FAQ)
❓ What makes LD-4751 different from other yellow phosphors? LD-4751 offers optimized performance at 567.1nm with a balanced 4000K color temperature, making it ideal for applications requiring neutral white light with comfortable illumination. | ❓ What chip wavelengths are compatible with LD-4751? LD-4751 is optimized for blue LED chips in the 465-470nm range, which provides optimal energy transfer for yellow light emission. |
❓ What particle size options are available for LD-4751? LD-4751 is available in two particle size options: 7μm for applications requiring finer dispersion, and 12μm for applications requiring higher brightness. | ❓ Do you support small-batch samples? Yes. We provide free samples with complete technical support including white light mixing solutions and performance verification for your specific application. |
Samples & Technical Support
Get LD-4751 Technical Support and Samples TodayFree yellow phosphor application solutions, packaging process optimization, and sample testing services. 24-hour rapid response with customized support for your specific application needs. |
