📌 Product Overview
The XL-502UBD is a standard 5mm (F5) through-hole LED manufactured by XINGLIGHT, designed for general-purpose indication and backlighting. 🛠️ It features a blue water-clear colloid with a dominant wavelength typically centered at 465nm.
This component is engineered for applications requiring high visibility and low power consumption. 💡 With a robust MSL (Moisture Sensitivity Level) of 2 and compliance with RoHS standards, it suits both automated assembly processes and environmentally sensitive product designs.
💻 Typical Applications
Based on the XL-502UBD’s optical and electrical characteristics, it is optimized for the following use cases:
- Consumer Electronics & Indicators: Status lights for home appliances, digital devices, and communication equipment.
- Automotive & Transportation: Dashboard illumination and internal signal indicators (non-critical lighting).
- Medical & Educational: 🏥 Indicator lights for beauty instruments and electronic teaching devices.
- Urban Lighting & Decor: 🏙️ Light decoration and city beautification projects requiring consistent color binning.
⚡ Key Technical Specifications
The following table outlines the initial electrical and optical characteristics ($T_a = 25^\circ C$):
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | $I_V$ | 300 | 600 | 900 | mcd | $I_F = 20\text{mA}$ |
| Dominant Wavelength | $\lambda_d$ | 460 | 465 | 475 | nm | $I_F = 20\text{mA}$ |
| Forward Voltage | $V_F$ | 2.8 | 3.0 | 3.4 | V | $I_F = 20\text{mA}$ |
| Peak Wavelength | $\lambda_p$ | - | 465 | - | nm | $I_F = 20\text{mA}$ |
| Viewing Angle | $2\theta_{1/2}$ | - | 30 | - | deg | $I_F = 20\text{mA}$ |
| Reverse Current | $I_R$ | - | - | $\le 10$ | $\mu\text{A}$ | $V_R = 5\text{V}$ |
Note: 💡 Strict binning codes (A4-A7 for intensity, N13-3 to N13-5 for voltage) are available to ensure uniformity in large-scale production.
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause permanent device failure. 🔒 Design engineers must ensure operational parameters remain within these limits:
| Parameter | Symbol | Max | Unit | Notes |
|---|---|---|---|---|
| Power Dissipation | $P_d$ | 70 | mW | Derating necessary above $25^\circ C$ |
| Max Continuous Forward Current | $I_F$ | 20 | mA | DC operation |
| Peak Forward Current | $I_{Fp}$ | 80 | mA | Pulse width/duty cycle limited |
| Operating Temperature | $T_{opr}$ | -20 ~ +85 | $^\circ\text{C}$ | Ambient range |
| Storage Temperature | $T_{stg}$ | -40 ~ +85 | $^\circ\text{C}$ | |
| Soldering (Reflow) | $T_{sol}$ | 240 | $^\circ\text{C}$ | $\le 6$ seconds |
| Soldering (Manual) | $T_{sol}$ | 300 | $^\circ\text{C}$ | $\le 3$ seconds |
Critical Warning: ⚡ The soldering point must be at least 2.0mm from the bottom of the colloid to prevent thermal damage.
📦 Package, Dimensions & Assembly Notes
- Package Type: F5 (5mm Round) Diffused / Water Clear.
- Dimensions: $5.5 \times 5.0 \times 8.7\text{mm}$ (Head diameter $\times$ Thickness $\times$ Length).
- Lead Configuration: Short leg standard (Bipolar).
- MSL Level: 2 (Floor life > 1 year at $\le 30^\circ\text{C}$ / 85% RH).
- Tolerance: $\pm 0.50\text{mm}$ unless otherwise specified.
Assembly should utilize EIA standard packaging trays or bags. 📦 For moisture-proof anti-static requirements, store in nitrogen-filled dry cabinets if usage exceeds three months.
🚀 Sourcing & Supply Considerations
When integrating the XL-502UBD into your BOM, consider these supply chain factors:
- Binning Accuracy: Verify supplier grading for Luminous Intensity (IV) and Wavelength to avoid color variation on the final product line.
- Authenticity: Source only through XINGLIGHT authorized channels to ensure RoHS compliance and reliability data integrity.
- Sample Evaluation: Request pre-production samples matching the specific N13 (Voltage) and HB (Wavelength) codes to validate driver circuit compatibility.
❓ FAQ
Q: What is the forward voltage range required to drive the XL-502UBD at 20mA?
A: The typical forward voltage is 3.0V, with a maximum of 3.4V. 📉 Your LED driver should account for the 2.8V - 3.4V range to ensure consistent brightness across batches.
Q: Can this LED be used for outdoor applications?
A: The XL-502UBD is rated for operating temperatures between -20°C and +85°C. 🌡️ While it handles high ambient heat well, the IP rating depends on your housing design, as the component itself is not waterproof.
Q: What does the "Short Leg" designation mean for assembly?
A: This indicates the physical length of the leads. 📏 Ensure your PCB lead forming equipment is adjusted to accommodate the shorter lead length specified in the datasheet (approx. 18mm total length).
Q: Are there specific binning codes for color consistency?
A: Yes. 🎨 XINGLIGHT provides wavelength binning codes (HB04-HB06) ranging from 460nm to 475nm. Selecting a single bin code is recommended for applications requiring strict color uniformity.
Q: How should I handle the component regarding moisture sensitivity?
A: The XL-502UBD is MSL Level 2. 🏭 This means it can be stored for up to one year in a sealed bag with desiccant at <30°C/85% RH before baking is required.
