📌 Product Overview
The XL-1606UWC is a standard 1608 metric package (approx. 1.6mm x 0.8mm) Surface Mount Device (SMD) LED manufactured by XINGLIGHT. 💡 It utilizes a high-brightness white chip encapsulated in a yellow colloid body, optimized for clear indication and backlighting tasks. This component is specifically engineered for automated Surface Mount Technology (SMT) assembly, adhering to EIA standard packaging specifications.
Designed primarily for compact electronic designs, this model balances luminous intensity with efficient power consumption. With a low profile and a wide 120-degree viewing angle, it is suitable for applications requiring diffuse light distribution rather than focused point sources. Its robust construction supports standard reflow soldering processes, making it a viable option for high-volume consumer electronics and industrial indicator panels.
💡 Typical Applications
Based on its 1608 footprint and optical characteristics, the XL-1606UWC is well-suited for the following scenarios:
- Electronic Display & Indication: Ideal for status indicators, pilot lamps, and backlighting for small segment displays or keypads.
- Mobile & Consumer Devices: Frequently used in mobile phone backlights and digital product interfaces due to compact form factor.
- General Lighting: Applicable for small-scale indoor lighting arrays or supplemental illumination in enclosed fixtures.
- Appliance Panels: Used for status lights on white goods and industrial control panels where space is constrained.
⚙️ Key Technical Specifications
The following table outlines the electro-optical performance under standard test conditions ($T_a = 25^\circ C$).
| Parameter | Symbol | Min | Typ. | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | $I_V$ | 550 | - | 1000 | mcd | $I_F = 20\text{mA}$ |
| Forward Voltage | $V_F$ | 2.7 | - | 3.3 | V | $I_F = 20\text{mA}$ |
| Color Temperature | $T_C$ | 8000 | - | 12000 | K | $I_F = 20\text{mA}$ |
| Viewing Angle | $2\theta_{1/2}$ | - | - | 120 | Deg | $I_F = 20\text{mA}$ |
| Reverse Current | $I_R$ | - | - | 5 | $\mu\text{A}$ | $V_R = 5\text{V}$ |
Note: Luminous intensity is graded. Refer to manufacturer bin codes (E5-E9) for specific intensity selection.
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause device failure or significant degradation of optical performance. 👇 Design engineers must ensure these limits are not surpassed during operation or transient events.
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Max Power Dissipation | $P_D$ | 70 | mW | @ $T_a = 25^\circ C$ |
| Max Continuous Forward Current | $I_F$ | 20 | mA | DC operation |
| 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 Capability | ESD | 2000 | V | Human Body Model (HBM) |
| Operating Temperature | $T_{OPR}$ | -40 ~ +85 | $^\circ C$ | - |
| Storage Temperature | $T_{STR}$ | -40 ~ +85 | $^\circ C$ | - |
| Soldering Temp | $T_{SOL}$ | 260 | $^\circ C$ | $\le 6$ seconds |
🔧 Package, Dimensions & Assembly Notes
The XL-1606UWC features a compact rectangular body with standard dimensions of 1.7mm (L) x 0.6mm (W) x 1.1mm (H). This footprint is compatible with most modern pick-and-place machines.
Key Assembly Characteristics:
- Packaging: EIA standard tape-and-reel format, designed for high-speed SMT automated placement.
- Solderability: Suitable for standard reflow soldering processes. 🔒 The datasheet specifies compatibility with both Lead (Max 235°C) and Lead-free (Max 255°C/260°C) profiles.
- Moisture Sensitivity: Classified as MSL 3. Components must be mounted within 168 hours of opening the moisture barrier bag if the floor life is not controlled.
- Cleaning: Compatible with standard no-clean processes, though specific chemical compatibility should be verified for harsh fluxes.
🚀 Sourcing & Supply Considerations
For procurement teams, the XL-1606UWC represents a standard commodity LED, yet consistency is vital for mass production.
- Binning & Consistency: Tight binning on Forward Voltage (N11-8 to N12-1) and Brightness (E5-E9) is available. Specifying these codes is critical for uniform panel lighting.
- Supply Chain: As a RoHS-compliant product, verify that stock sources provide valid certification, especially for strictly regulated regions like the EU.
- Alternatives: The 1608 package is industry-standard. However, for drop-in replacements, verify the exact height and colloid color (Yellow vs. Water Clear), as this affects the emitted light's appearance when off.
❓ FAQ
Q: What is the MSL level for the XL-1606UWC, and why does it matter?
A: The moisture sensitivity level is 3. This means the component can withstand a floor life of up to 168 hours in a factory environment (30°C/85% RH) after opening the vacuum-sealed bag before it requires baking to prevent popcorning damage during reflow soldering.
Q: Can this LED be driven at 30mA for higher brightness?
A: No. The Absolute Maximum Continuous Forward Current is 20mA. While pulses up to 80mA are allowed, driving it continuously at 30mA will likely cause thermal runaway and significantly reduce the LED's lifespan.
Q: What is the typical forward voltage range I should design for?
A: The typical forward voltage ranges from 2.7V to 3.3V at 20mA. Your driver circuit should account for the upper limit (3.3V) to ensure consistent current regulation across the batch, especially when multiple LEDs are connected in series.
Q: Is this component suitable for outdoor lighting applications?
A: While the datasheet mentions "Indoor and outdoor lighting," the IP rating is dependent on the final product enclosure. The LED component itself is not waterproof; it requires a secondary housing or lens to protect it from direct water ingress and UV exposure if used outdoors.
Q: How do I interpret the Brightness Grading codes (e.g., E6, E7)?
A: These codes allow you to select specific intensity bins. For example, E6 guarantees a luminous intensity between 600–700 mcd. Selecting a specific bin ensures that all LEDs on a display panel have matching brightness.
