📌 Product Overview
The XL-HD3535UWC is a high-brightness SMD LED from XINGLIGHT, housed in a compact 3.5x3.5x2.0mm package with a water-clear colloid. It is specifically engineered to provide robust luminous flux for applications requiring intense, instantaneous lighting or steady illumination.
💡 This component is ideally suited for mobile camera flashes, DV (digital video) torches, and signal lights. Its design prioritizes high light output efficiency and long life with low attenuation, meeting ROHS environmental standards.
🎯 Typical Applications
Based on the model's optical power and thermal characteristics, the XL-HD3535UWC is utilized in the following scenarios:
- Mobile Camera Flash: Provides high-intensity strobe lighting for smartphone and tablet cameras.
- DV Torch Lighting: Continuous or semi-continuous lighting sources for digital video recording.
- Signal & Symbol Lights: Indicator panels requiring high visibility and specific color temperature.
- Decorative Lighting: Architectural and entertainment lighting utilizing the 130-degree viewing angle.
⚙️ Key Technical Specifications
The following optical and electrical parameters are measured under standard test conditions (Ta=25℃).
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Luminous Flux | Φ | IF=350mA | 100 | - | 150 | LM |
| Color Temperature | Tc | IF=350mA | 5500 | - | 7500 | K |
| Forward Voltage | VF | IF=350mA | 2.8 | - | 3.6 | V |
| Viewing Angle | 2θ1/2 | IF=350mA | - | 130 | - | Deg |
| Rendering Index | Ra | IF=350mA | - | 70 | - | / |
👇 Design Note: The wide range of luminous flux (100-150 LM) and color temperature (5500-7500 K) necessitates strict binning (K3-K7 / UW7-UW13) to ensure visual consistency in the final product.
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause permanent device failure. 👇 These limits are critical for designing driver circuits and thermal management systems.
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Power Dissipation | Pd | 1000 | mW | |
| Forward Current | IF | 350 | mA | |
| Peak Forward Current | IFP | 700 | mA | Pulse width ≤0.1ms, Duty ≤1/10 |
| ESD Capability | ESD | 3000 | V | Human Body Model (HBM) |
| Junction Temperature | Tj | 145 | ℃ | |
| Storage Temperature | Tstg | -40 ~ +85 | ℃ | |
| Soldering Temp | Tsol | 260 | ℃ | ≤6 Seconds |
📦 Package, Dimensions & Assembly Notes
- Outline Dimensions: 3.5mm (L) x 3.5mm (W) x 2.0mm (H). Tolerance is ±0.25mm unless noted.
- Moisture Sensitivity: MSL Level 3. Proper baking and handling are required prior to reflow soldering to prevent popcorning.
- Soldering Guidelines:
- Reflow: Max 2 cycles. Do not apply stress to the LED during heating.
- Hand Soldering: Only for repair. Use iron <30W, temp <300℃, time <3s.
- Lead Soldering: 260℃ max for ≤6 seconds.
🚢 Sourcing & Supply Considerations
- Binning Codes: Specify brightness (K3-K7), voltage (N13-3 to N13-6), and color temperature (UW7-10 to UW13-10) codes when placing orders to match specific BOM requirements.
- MSL Handling: Verify that the supply chain adheres to MSL Level 3 packaging and dry storage requirements to ensure yield rates during SMT assembly.
- Authenticity: Source through XINGLIGHT authorized channels to guarantee compliance with the reliability test items (JIS/MIL-STD) outlined in the datasheet.
❓ Frequently Asked Questions
Q: What is the maximum drive current for continuous operation? A: The Absolute Maximum Rating for continuous Forward Current (IF) is 350 mA. Exceeding this without adequate heat dissipation will degrade the lumen maintenance and lifespan.
Q: Can this LED be used for general backlighting? A: While it can be used for various lighting, its high luminous flux and 130-degree viewing angle are optimized for high-intensity applications like flashlights or camera flashes rather than uniform panel backlighting.
Q: What does the "UW" in the color grading code represent? A: The "UW" codes (e.g., UW7-10) refer to the Cool White color temperature range, specifically binned between 5500K and 7500K.
Q: How should I handle storage to prevent moisture damage? A: The XL-HD3535UWC has a Moisture Sensitivity Level (MSL) of 3. It should be stored in a dry environment. If the moisture barrier bag is exposed beyond the floor life, baking is required before reflow soldering.
Q: Is this component RoHS compliant? A: Yes, the datasheet explicitly states that this is an environmental protection product that meets ROHS requirements.
