📌 Product Overview
The XL-HD2525UBC-A4 is a high-intensity 2.5mm x 2.5mm surface-mount device (SMD) from XINGLIGHT, specifically engineered for applications requiring substantial luminous flux in a compact footprint. 💡 Utilizing a transparent colloid with a dominant wavelength of 455nm (Blue), this component is optimized for high-power output scenarios where space constraints are critical.
👇 Target applications primarily include mobile camera flash modules, DV (digital video) illumination, and directional signal lights. The design focus balances high luminous intensity—up to 45 lumens at 700mA—with robust thermal performance, ensuring reliability in densely packed PCB assemblies.
🔦 Typical Applications
Based on the high optical power and 120-degree viewing angle, the XL-HD2525UBC-A4 is suited for the following specific use cases:
- Mobile Camera Flash: Designed for strobe functions in smartphones and portable devices.
- DV Illumination: Flashlight functionality for digital video recording.
- Signal & Symbol Lighting: Indicator lights requiring high visibility and specific blue wavelength.
- Decorative Lighting: Entertainment and accent lighting where compact size and high output are required.
📊 Key Technical Specifications
The following electrical and optical characteristics are measured at $T_a=25^\circ C$.
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Luminous Flux | $\Phi$ | $I_F=700\text{mA}$ | 27 | - | 45 | lm |
| Forward Voltage | $V_F$ | $I_F=700\text{mA}$ | 2.8 | - | 3.4 | V |
| Peak Wavelength | $\lambda_p$ | $I_F=700\text{mA}$ | - | 455 | - | nm |
| Main Wavelength | $\lambda_d$ | $I_F=700\text{mA}$ | 450 | 455 | 460 | nm |
| Half-Intensity Angle | $2\theta_{1/2}$ | $I_F=700\text{mA}$ | - | 120 | - | Deg |
| Reverse Current | $I_R$ | $V_R=5\text{V}$ | - | - | 5 | $\mu$A |
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause permanent device failure. These limits are critical for design margin and reliability testing.
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Power Dissipation | $P_D$ | 3000 | mW | |
| Forward Current | $I_F$ | 1000 | mA | |
| ESD Capability | $E_{SD}$ | 3000 | V | Human Body Model |
| Operation Temperature | $T_{opr}$ | -40 to +105 | $^\circ C$ | |
| Storage Temperature | $T_{stg}$ | -40 to +85 | $^\circ C$ | |
| Junction Temperature | $T_j$ | - | - | Max 125$^\circ C$ |
| Lead Soldering | $T_{sol}$ | 260 | $^\circ C$ | $\le 6$ Seconds |
🔒 Process Warning: Moisture Sensitivity Level (MSL) is Class 3. Proper baking and handling are required prior to reflow soldering to prevent popcorning or internal damage.
📦 Package, Dimensions & Assembly Notes
- Package Type: 2525 Surface Mount (2.5mm x 2.5mm x 1.85mm).
- Soldering Guidelines:
- Hand Soldering: Not recommended for production. If used for repair, keep iron $< 30\text{W}$ and $< 300^\circ\text{C}$ for $< 3$ seconds.
- Reflow Soldering: Recommended max peak temperature is $240 \pm 5^\circ\text{C}$ for $> 6$ seconds.
- Cycle Limit: Do not exceed two reflow cycles.
- Mechanical Stress: Avoid applying pressure to the lens during heating.
🚀 Sourcing & Supply Considerations
- Binning Codes: Verify specific Brightness (J3-J5), Voltage (N13-3 to N13-5), and Wavelength (HB02-HB03) bins to ensure optical consistency in the final assembly.
- ** authenticity:** Source through XINGLIGHT authorized channels to avoid counterfeits that may not meet the 3000V ESD or ROHS compliance standards.
- Sample Evaluation: Request pre-production samples to validate thermal management (Tj) at your specific drive current (e.g., 700mA vs 1000mA).
❓ FAQ
Q: What is the maximum continuous forward current for the XL-HD2525UBC-A4? A: The Absolute Maximum Rating for forward current is 1000 mA. However, for optimal lifespan and thermal management, driving at 700 mA (as per the typical optical parameters) is recommended.
Q: Can this LED be used for reflow soldering? A: Yes, it is designed for SMT processes. However, the reflow profile should be carefully controlled. The recommended peak temperature is $240 \pm 5^\circ\text{C}$ for a maximum of 6 seconds. Do not exceed two reflow cycles.
Q: What does MSL 3 mean for this component? A: MSL 3 (Moisture Sensitivity Level) means the component is sensitive to moisture absorption. It must be baked before opening the vacuum seal and soldered within a specific timeframe (usually 168 hours) after exposure to ambient air to prevent internal cracking.
Q: What is the viewing angle of this LED? A: The XL-HD2525UBC-A4 features a typical half-intensity angle of 120 degrees, making it suitable for area lighting and flash applications where a wide beam spread is required.
Q: How is the brightness sorted? A: Brightness is sorted by Luminous Flux (lumens) codes. Codes J3 (27-33 lm), J4 (33-39 lm), and J5 (39-45 lm) allow designers to select the appropriate intensity tier for their application.
