📌 Product Overview
The XL-HD3535UGC-A4 from XINGLIGHT is a high-power Green SMD LED housed in a compact 3.5x3.5x2.2mm package with a transparent colloid. Designed for applications requiring substantial luminous flux, this component delivers a typical output of 110–150 lm under 350mA drive conditions. 💡 The device features a wide 120-degree viewing angle, making it suitable for both focused illumination and area lighting tasks. Its robust construction supports a forward current of up to 700mA, positioning it as a viable solution for portable lighting fixtures and signal indicators where board space is constrained but output intensity is critical.
🎯 Typical Applications
Based on the datasheet parameters and optical characteristics, the XL-HD3535UGC-A4 is engineered for the following specific use cases:
- Mobile Camera Flash: The high output power and compact footprint allow for integration into smartphone strobe modules or tablet camera flashes.
- Digital Video (DV) Lighting: Suitable for flashlight modules in digital video recording devices requiring consistent, high-intensity green illumination.
- Signage and Symbol Lights: Effective for traffic signals, industrial indicator panels, and emergency exit signs due to high visibility and long lifespan.
- Decorative Entertainment: Used in ambient lighting systems, stage effects, and decorative fixtures where color consistency and longevity are required.
📊 Key Technical Specifications
The following table outlines the electro-optical characteristics ($T_a=25^\circ C$) necessary for circuit design and binning selection.
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Luminous Flux | $\Phi$ | $I_F=350mA$ | 110 | - | 150 | lm |
| Forward Voltage | $V_F$ | $I_F=350mA$ | 2.8 | - | 3.4 | V |
| Peak Wavelength | $\lambda_p$ | $I_F=350mA$ | - | 525 | - | nm |
| Main Wavelength | $\lambda_D$ | $I_F=350mA$ | 515 | 525 | 535 | nm |
| Half-Intensity Angle | $2\theta_{1/2}$ | $I_F=350mA$ | - | 120 | - | Deg |
| Reverse Current | $I_R$ | $V_R=5V$ | - | - | 5 | uA |
👇 Design Note: Engineers should utilize the provided Brightness (K4-K7) and Voltage (N13-3 to N13-5) grading codes to ensure uniformity in mass production.
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these values may cause permanent device failure. Stress testing indicates these limits are critical for reliability.
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Power Dissipation | $P_D$ | 3000 | mW | |
| DC Forward Current | $I_F$ | 700 | mA | |
| Reverse Voltage | $V_R$ | 5 | V | |
| ESD Tolerance | - | 2000 | V | Human Body Model (HBM) |
| Junction Temperature | $T_j$ | 125 | $^\circ C$ | |
| Storage Temperature | $T_{stg}$ | -40 to +85 | $^\circ C$ | |
| Operating Temp | $T_{opr}$ | -40 to +105 | $^\circ C$ |
⚠️ Caution: The datasheet specifies a pulse width limit of $\le 0.1ms$ and duty cycle $\le 1/10$ for peak operation. For soldering, lead temperature must not exceed $260^\circ C$ for longer than 6 seconds.
📦 Package, Dimensions & Assembly Notes
Physical Characteristics:
- Package Type: 3535 Surface Mount Device (SMD)
- Dimensions: 3.5mm (L) x 3.5mm (W) x 2.2mm (H)
- Tolerance: $\pm 0.25mm$ (unless noted)
- Moisture Sensitivity: MSL 3 (Floor life: 168 hours at $<30^\circ C / 60% RH$)
Assembly Guidelines:
🔒 Soldering Profile: Reflow soldering should not exceed two cycles. The recommended profile follows standard Pb-free guidelines.
- Hand Soldering: Use an iron $<30W$. Tip temperature must remain $<300^\circ C$. Duration per terminal must be $<3$ seconds.
- Mechanical Stress: Do not apply pressure to the lens during the heating phase of reflow, as this can cause internal mechanical damage or delamination.
🚀 Sourcing & Supply Considerations
- Binning Verification: Always specify brightness (K4-K7) and voltage (N13) codes when placing orders to maintain color and power consistency across batches.
- Authenticity: Source from authorized channels to verify compliance with ROHS environmental standards.
- Handling: Given the MSL 3 rating, ensure proper dry packing storage if components are not mounted within 168 hours of opening.
❓ FAQ
Q: What is the maximum current I can drive the XL-HD3535UGC-A4 with?
A: The Absolute Maximum Rating for DC Forward Current is 700mA. However, for continuous operation, proper thermal management is required to keep the junction temperature ($T_j$) below $125^\circ C$.
Q: What does the "K4-K7" brightness grading mean?
A: These codes define the luminous flux bins. K4 ranges from 110-120 lm, while K7 ranges from 140-150 lm (tested at 350mA). Selecting a single bin ensures visual uniformity in your lighting application.
Q: Can this LED be used for outdoor lighting?
A: Yes, the operating temperature range is -40 to +105$^\circ C$, and the storage range extends down to -40$^\circ C$, making it suitable for harsh environments. However, the IP rating depends on your enclosure design.
Q: What are the precautions for reflow soldering?
A: Do not perform reflow soldering more than twice. Ensure the peak temperature does not exceed $260^\circ C$ and avoid placing any mechanical stress on the LED body during the liquidus phase.
Q: Is this component RoHS compliant?
A: Yes, the datasheet explicitly states that the XL-HD3535UGC-A4 is an environmental protection product meeting ROHS requirements.
