📌 Product Overview
The XL-1606SYGC is a 1608 metric package (0603 imperial) Surface Mount Device (SMD) LED manufactured by XINGLIGHT. 📦 It features a high-brightness yellow-green light source with a transparent water-clear colloid, designed for low-power indication and backlighting tasks where board space is constrained.
Targeting compact consumer electronics and display modules, this component supports standard SMT production lines. 💡 With a viewing angle of 120° and a dominant wavelength of 565–575 nm, it serves as a consistent visual indicator. Engineers should prioritize this model for designs requiring RoHS-compliant components and compatibility with standard reflow soldering processes.
🔧 Typical Applications
Based on the 1.8–2.3V forward voltage and 120° viewing angle, the XL-1606SYGC is optimized for the following scenarios:
- Electronic Display Screens: ✨ Suitable for status indicators and information panels due to high visibility and distinct yellow-green emission.
- Mobile Digital Products: 📱 Ideal for keypad backlighting and small-area illumination given the compact 1.7 x 0.6 mm footprint.
- Pilot Lamps & Indicators: 🚦 Effective for power status signals on PCBA (Printed Circuit Board Assembly) panels.
- Indoor/Outdoor Lighting: 💡 Can be utilized in low-light accent lighting or array-based illumination fixtures.
- Consumer Electronics: 📟 Provides operation feedback for appliances and handheld devices.
⚡ Key Technical Specifications
The table below outlines the electro-optical characteristics at $T_a = 25°C$. These parameters are critical for driving circuit design and color consistency.
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | $I_v$ | 50 | 80 | - | mcd | $I_F = 20\text{mA}$ |
| Dominant Wavelength | $\lambda_d$ | 565 | - | 575 | nm | $I_F = 20\text{mA}$ |
| Peak Wavelength | $\lambda_p$ | - | 570 | - | nm | $I_F = 20\text{mA}$ |
| Forward Voltage | $V_F$ | 1.8 | - | 2.3 | V | $I_F = 20\text{mA}$ |
| Viewing Angle | $2\theta_{1/2}$ | - | 120° | - | deg | $I_F = 20\text{mA}$ |
| Reverse Current | $I_R$ | - | - | 5 | $\mu$A | $V_R = 5\text{V}$ |
⚠️ Note: Brightness grading codes (e.g., D1, D2) correspond to intensity ranges (50–80 mcd, 80–120 mcd), allowing for specific bin selection during procurement.
🛡️ Absolute Maximum Ratings & Process Limits
To ensure reliability and prevent catastrophic failure, design engineers must strictly adhere to these limits. Exceeding these values may result in permanent damage or reduced lifespan ($T_a = 25°C$).
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Max Power Dissipation | $P_D$ | 50 | mW | - |
| Max Continuous Forward Current | $I_F$ | 20 | mA | - |
| Peak Forward Current | $I_{FP}$ | 80 | mA | Pulse width $\le 0.1\text{ms}$, Duty $\le 1/10$ |
| Max Reverse Voltage | $V_R$ | 5 | V | - |
| ESD Tolerance | ESD | 2000 | V | Human Body Model (HBM) |
| Operating Temperature | $T_{OPR}$ | -40 ~ +85 | $^{\circ}\text{C}$ | - |
| Storage Temperature | $T_{STR}$ | -40 ~ +85 | $^{\circ}\text{C}$ | - |
| Soldering Temp/Time | $T_{SOL}$ | 260 | $^{\circ}\text{C}$ | $\le 6$ seconds (Manual) |
🔒 Design Alert: Ensure current limiting resistors are calculated to prevent inrush currents from exceeding the 80mA peak rating during switching transients.
📦 Package, Dimensions & Assembly Notes
The XL-1606SYGC utilizes a standard 1608 (metric) / 0603 (imperial) footprint, making it highly compatible with modern pick-and-place machinery.
Physical Dimensions:
- Outline: $1.7 \text{mm (L)} \times 0.6 \text{mm (W)} \times 1.1 \text{mm (H)}$
- Packaging: EIA standard compliant tape and reel for SMT automation.
Assembly Guidelines:
- Soldering Profile: Suitable for reflow soldering processes. 🌡️
- Lead-Free Process: Max temp $255^{\circ}\text{C}$ (5-10s).
- Lead Process: Max temp $235^{\circ}\text{C}$ (10-15s).
- Moisture Sensitivity: MSL Level 3. ⚠️ Floor life is limited; if the carrier is opened for more than 168 hours, baking may be required per IPC/JEDEC standards to prevent pop-corning during reflow.
🚚 Sourcing & Supply Considerations
When integrating the XL-1606SYGC into a BOM, consider the following supply chain and technical verification factors:
- Binning & Consistency: 🔍 Verify supply lots for consistent "Voltage Grading" (M17-9 to M18-4) and "Brightness Grading" to ensure uniform display appearance across mass production.
- Authenticity: Source components through authorized channels to guarantee compliance with the 2000V ESD rating and ROHS environmental standards.
- Production Scaling: Given the EIA standard packaging, this component supports rapid SMT scaling, but moisture control (MSL 3) is critical for high-volume throughput.
❓ Frequently Asked Questions
Q: What is the forward voltage drop of the XL-1606SYGC?
A: The typical forward voltage ($V_F$) ranges between 1.8V and 2.3V at a forward current of 20mA. Specific voltage bins (M17-9, M18-1, etc.) allow for tighter tolerance selection if the design requires strict voltage regulation.
Q: Is the XL-1606SYGC compatible with lead-free soldering processes?
A: Yes, the datasheet specifies parameters for both leaded and lead-free processes. For lead-free reflow, the maximum peak temperature is $255^{\circ}\text{C}$, with a time above $217^{\circ}\text{C}$ limited to 60–120 seconds.
Q: What does MSL Level 3 mean for assembly?
A: Moisture Sensitivity Level (MSL) 3 indicates the component can be exposed to a factory environment (30$^{\circ}\text{C}$ / 85% RH) for up to 168 hours before baking is required. If floor life exceeds this, the components must be baked to prevent moisture-induced damage during soldering.
Q: What is the typical luminous intensity for this LED?
A: The luminous intensity ($I_v$) is typically 80 mcd at 20mA, though it can range from 50 mcd to 120 mcd depending on the brightness grading bin (D1 or D2) selected during procurement.
Q: What are the dimensions of this LED?
A: The XL-1606SYGC corresponds to the 1608 metric size (0603 imperial). The specific outline dimensions are $1.7 \text{mm} \times 0.6 \text{mm} \times 1.1 \text{mm}$ (Length x Width x Height).
