📌 Product Overview
The XL-HD3535SURC-A2 from XINGLIGHT is a high-power SMD LED designed for applications requiring high luminous flux in a compact form factor. 💡 Housed in a 3.5x3.5x2.2mm package with a transparent colloid optimized for Red light (620nm典型), this component addresses the need for reliable, high-intensity point sources in modern electronics. It is engineered to deliver substantial optical output while maintaining a long operational lifespan and low light attenuation.
This component is specifically intended for integration into space-constrained portable devices. 👆 Design focus centers on its ability to handle continuous forward currents of 350mA, making it suitable for high-drain scenarios like camera flash modules or indicator lights where thermal management and brightness consistency are critical.
🔦 Typical Applications
Based on the provided datasheet parameters, the XL-HD3535SURC-A2 is optimized for the following use cases:
- Mobile Camera Flash: Designed for high-intensity strobe functions in smartphones and mobile devices (IF=350mA).
- DV & Torch Lighting: Suitable for flashlights in Digital Video (DV) applications and portable handlights.
- Signage & Indicators: Effective for signal lights and symbol illumination requiring wide viewing angles.
- Decorative Lighting: Applicable for entertainment and interior decorative lighting strips.
- General Illumination: Supports exterior and interior lighting applications where space is limited.
📊 Key Technical Specifications
The following table outlines the electro-optical characteristics under standard test conditions (Ta=25°C). 💡 Engineers should pay close attention to the luminous flux binning and voltage requirements when designing driver circuits.
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Luminous Flux | Φ | IF=350mA | 40 | - | 60 | lm |
| Forward Voltage | VF | IF=350mA | 1.8 | - | 2.4 | V |
| Main Wavelength | λD | IF=350mA | 615 | 620 | 625 | nm |
| Peak Wavelength | λp | IF=350mA | - | 625 | - | nm |
| Half-Intensity Angle | 2θ1/2 | IF=350mA | - | 130 | - | Deg |
| Reverse Current | IR | VR=5V | - | - | 5 | uA |
| Junction Temp | TJ | - | - | - | 145 | °C |
⚠️ Absolute Maximum Ratings & Process Limits
To ensure reliability and prevent catastrophic failure during operation or assembly, the following limits must not be exceeded. 👆 These parameters are critical for stress testing and driver design.
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Power Dissipation | Pd | 1000 | mW | - |
| Forward Current | IF | 350 | mA | Continuous DC |
| Peak Forward Current | IFP | 700 | mA | Pulse width ≤0.1ms, Duty ≤1/10 |
| ESD Capability | ESD | 3000 | V | Human Body Model (HBM) |
| Operation Temp | Topr | -40 ~ +105 | °C | - |
| Storage Temp | Tstg | -40 ~ +85 | °C | - |
| Soldering Temp | Tsol | 260 | °C | ≤6 Seconds (Hand Soldering) |
📦 Package, Dimensions & Assembly Notes
The XL-HD3535SURC-A2 features a standard 3535 footprint (3.5mm L x 3.5mm W x 2.2mm H). 🔒 All dimensions are in millimeters with a general tolerance of ±0.25mm unless noted. This package size offers a balance between thermal performance and board space economy.
Soldering Guidelines:
- Moisture Sensitivity: The component is classified as MSL 3. Baking before reflow is required if floor life exceeds 168 hours.
- Reflow Profile: A maximum of two reflow passes is allowed. The recommended peak temperature is 240°C ± 5°C for 6 seconds.
- Hand Soldering: Use an iron <30W. Keep tip temperature <300°C and duration <3 seconds per pad.
- Stress: Avoid mechanical stress on the LED body during heating to prevent cracking.
🚢 Sourcing & Supply Considerations
When integrating the XL-HD3535SURC-A2 into your BOM, consider the following supply chain factors:
- Binning Codes: Verify specific binning requirements for Brightness (J5-J7), Voltage (N12-7 to N12-9), and Wavelength (HR01-HR03) to ensure color consistency in mass production.
- Authenticity: Source from authorized channels to guarantee compliance with ROHS and reliability standards (1000Hrs life test passed).
- Lead Time: Check availability of specific bins, as high-flux variants (J7) may have different lead times than standard bins.
❓ FAQ
Q: What is the maximum current I can drive the XL-HD3535SURC-A2 with? A: The Absolute Maximum Rating for continuous Forward Current (IF) is 350mA. While it can handle a peak pulse current of 700mA, this is strictly limited to pulse widths ≤0.1ms and a duty cycle ≤1/10.
Q: What is the Moisture Sensitivity Level (MSL) for this component? A: This LED is rated at MSL 3. This means it has a floor life of 168 hours (one week) after the sealed bag is opened before it must be baked and reflowed to prevent moisture-induced damage (popcorning).
Q: What are the binning codes for this LED? A: The datasheet specifies three main grading categories:
- Brightness (Flux): J5 (39-45lm), J6 (45-52lm), J7 (52-60lm).
- Voltage: N12-7 (1.8-2.0V), N12-8 (2.0-2.2V), N12-9 (2.2-2.4V).
- Wavelength: HR01 (615-620nm), HR02 (620-625nm), HR03 (625-630nm).
Q: Can I use a standard soldering iron for prototype assembly? A: Yes, but with strict limitations. Use a soldering iron with power under 30W and a tip temperature below 300°C. Do not solder a single terminal for more than 3 seconds, and do not solder the same terminal twice.
Q: What is the viewing angle of this LED? A: The Half-Intensity Angle (2θ1/2) is typically 130 degrees. This wide viewing angle makes it suitable for area lighting and flash applications where light dispersion is necessary.
