📌 Product Overview
The XL-502UGC is a 5mm F5 diffused through-hole LED manufactured by XINGLIGHT, designed to deliver high-intensity green illumination with a typical dominant wavelength of 520nm. 💡 Housed in a water-clear white colloid package, this component is engineered for applications requiring robust luminosity and long operating life, driven by a low-voltage DC source.
💡 The design focus for this model centers on high energy efficiency and fast startup capabilities. It is particularly suitable for scenarios where standard surface-mount devices (SMD) may lack the mechanical resilience or optical diffusion required, such as indicator panels and decorative lighting. With a viewing angle of 30 degrees, it offers a focused beam suitable for localized status indication or accent lighting.
🎯 Typical Applications
Based on the provided datasheet parameters and mechanical structure, the XL-502UGC is optimized for the following use cases:
- Consumer Electronics & Indicators: Integrated into digital communication devices and home appliances for power status or functional notification.
- Automotive & Transportation: Utilized in automotive electronics for dashboard illumination and traffic instructions where Through-Hole Technology (THT) provides vibration resistance.
- Decorative & Architectural: Implemented in city lighting and lighting decorations due to the high luminous intensity (up to 35,000 mcd).
- Specialized Equipment: Suitable for medical beauty instruments and electronic teaching equipment requiring reliable, long-life light sources.
⚡ Key Technical Specifications
The following table outlines the initial electrical and optical characteristics (Ta=25°C). This data is critical for engineers designing driver circuits and managing optical consistency.
| Parameter | Symbol | Min | Typ. | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | Iv | 20,000 | 30,000 | 35,000 | mcd | IF = 20mA |
| Dominant Wavelength | λd | 515 | 520 | 530 | nm | IF = 20mA |
| Peak Wavelength | λp | - | 525 | - | nm | IF = 20mA |
| Forward Voltage | VF | 2.8 | 3.0 | 3.4 | V | IF = 20mA |
| Viewing Angle | 2Ø1/2 | - | 30 | - | deg | IF = 20mA |
| Reverse Current | IR | - | - | ≤10 | μA | VR = 5V |
💡 Design Note: The component is available in specific brightness bins (C7, C8, C9) and voltage grades (N13-3 to N13-5). Procurement teams should verify specific bin codes to ensure color and brightness uniformity across production batches.
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause permanent device failure or degradation. These limits are crucial for reliability testing and circuit protection design.
| Parameter | Symbol | Rating | Unit | Notes |
|---|---|---|---|---|
| Power Dissipation | Pd | 70 | mW | - |
| Max Continuous Forward Current | IF | 20 | mA | - |
| Peak Forward Current | IFp | 80 | mA | Pulse duration control required |
| Operating Temperature | Topr | -20 to +85 | °C | Ambient range |
| Storage Temperature | Tstg | -40 to +85 | °C | - |
| Soldering (Wave) | Tsol | 240 | °C | ≤ 6s |
| Soldering (Manual) | Tsol | 300 | °C | ≤ 3s |
🔒 Critical Warning: The solder joint must be >2.0mm from the colloid bottom to prevent thermal damage to the epoxy resin.
📦 Package, Dimensions & Assembly Notes
The XL-502UGC utilizes a standard F5 radial package with specific short-leg dimensions suitable for compact PCB layouts.
- Dimensions: The overall profile is approximately 5.5mm (Diameter) x 8.7mm (Height). Tolerances are generally ±0.50mm unless noted.
- Lens: Water-clear white colloid (diffused).
- Moisture Sensitivity: Classified as MSL 2. This indicates the device can withstand floor life of up to one year at <30°C / 60% RH.
- Packaging: Shipped in moisture-proof, anti-static foil bags to comply with EIA standards.
👇 Assembly Recommendation: Ensure wave soldering temperatures do not exceed 240°C for more than 6 seconds to maintain structural integrity.
🚀 Sourcing & Supply Considerations
- Authenticity: Verify packaging for the XINGLIGHT branding and EIA standard markings to avoid counterfeit components.
- Binning Consistency: For large-scale lighting projects, specify the required Brightness (C7-C9) and Wavelength (HG02-HG04) codes to the supplier.
- Sample Availability: Request engineering samples to validate the 30-degree viewing angle against specific light guide designs.
- Lead Time: Confirm stock availability for specific voltage grades, as "Typical" bin codes may ship faster than specific Min/Max requirements.
❓ FAQ
Q: What is the difference between the brightness bins C7, C8, and C9?
A: These codes represent the Luminous Intensity (Iv) grading. C7 covers 20,000–25,000 mcd, C8 covers 25,000–30,000 mcd, and C9 covers 30,000–35,000 mcd, all tested at IF=20mA.
Q: Can this LED be used in outdoor environments?
A: Yes, the operating temperature range extends down to -20°C. However, for outdoor applications, adequate waterproofing measures are required as the leads are tinned and the epoxy is standard grade.
Q: What does the "Short Leg" (短脚) designation imply for assembly?
A: This refers to the lead form factor. Designers should ensure the PCB lead spacing accounts for the 5.0mm lead spacing and the shortened length if the application requires a low component profile.
Q: How should I handle storage to prevent moisture damage?
A: Although the device has a high forward voltage tolerance, it is rated MSL 2. Store at temperatures not exceeding 30°C and relative humidity below 70%. If the vacuum-sealed bag is open, usage within 3 months is recommended.
Q: Is the XL-502UGC compliant with environmental regulations?
A: Yes, the datasheet explicitly confirms that the product meets ROHS requirements, ensuring it is free from hazardous substances above threshold limits.
