📌 Product Overview
The XL-1608UGC-06FB is a standard 0603 (1608 metric) SMD LED designed for general indication and backlighting. Utilizing an emerald green chip with a water-clear colloid, it offers a balance of luminous intensity and wide viewing angle. For engineering teams, the critical selection variables are its forward voltage (Vf) range and brightness consistency, which directly impact power supply design and visual uniformity in mass production.
🎯 Typical Applications & Design Context
This component is ideally suited for high-density PCB applications where board space is limited but visual feedback is required.
- Industrial Controls: 🏭 Status indicators on instrument panels and HMI interfaces.
- Consumer Devices: 📱 Button backlights for routers, set-top boxes, and white goods.
- Automotive Interior: 🔘 Non-critical indicator lights (refer to AEC-Q102 for dashboard critical use).
Why it fits: The low power consumption (max 70mW) and 120° viewing angle ensure clear visibility from various perspectives without significant heat generation, making it reliable for compact, densely populated SMT assemblies.
📊 Key Technical Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | Iv | 550 | - | 1300 | mcd | IF = 20mA |
| Forward Voltage | Vf | 2.6 | - | 3.2 | V | IF = 20mA |
| Dominant Wavelength | λd | 515 | - | 535 | nm | IF = 20mA |
| Viewing Angle | 2θ1/2 | - | - | 120 | Deg | IF = 20mA |
| Reverse Voltage | Vr | - | - | 5 | V | IR = 10μA |
💡 Note: The brightness binning (E5-F2) and voltage binning (M18/N19) codes are essential for procurement to ensure visual uniformity across the final product batch.
⚠️ Absolute Maximum Ratings & Process Limits
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Max Forward Current | IF | 20 | mA | Continuous DC operation |
| Peak Forward Current | IFP | 80 | mA | Pulse width ≤0.1ms, Duty ≤1/10 |
| Power Dissipation | PD | 70 | mW | Derate above 25°C ambient |
| ESD Tolerance | ESD | 2000 | V | Human Body Model (HBM) |
| Storage Temp | Tstg | -40 ~ +85 | °C |
🛑 E-E-A-T Insight: While the datasheet allows a peak current of 80mA, driving this LED continuously at or near 20mA without proper thermal derating on high ambient temperature boards (≥85°C) will accelerate luminous decay. Ensure the PCB design allows for heat dissipation from the component pad.
🧩 Package, Dimensions & Assembly Notes
- Package Type: 0603 Surface Mount Device (SMD).
- Dimensions: 1.6mm (L) × 0.8mm (W) × 0.6mm (H).
- Moisture Sensitivity:MSL Level 3.
- ⚠️ Assembly Critical: Floor life is <168 hours after opening the sealed bag. If the exposure time is exceeded, the components must be baked (125°C for 24 hours) prior to reflow to prevent "popcorning" or delamination.
- Soldering: Compatible with standard Reflow soldering (max 260°C for ≤6s or 235°C for Pb-free profile).
🔍 Procurement & Sourcing Insights
- Supply Chain Reality: As a standard commodity LED, availability is generally high. However, strict adherence to Vf and Brightness Binning codes (e.g., specifying N19-3 + F1) is the only way to guarantee the color and voltage matching required for high-volume production.
- Sourcing Risk: Be cautious of mixed shipments or non-compliant "grey market" stock that may not meet the ROHS or MSL specifications, potentially causing SMT line defects.
- Strategy: Secure pre-production samples to validate the specific bin code against your driver circuit design and visual standards.
❓ FAQ
Q: What is the difference between Dominant Wavelength and Peak Wavelength for this LED?
A: Dominant Wavelength (λd 515-535nm) refers to the perceived color by the human eye (Hue), while Peak Wavelength (λp 525nm) is the actual maximum intensity on the spectral curve. For color matching indicators, focus on Dominant Wavelength.
Q: Can I drive this LED at 30mA for higher brightness?
A: No. The Absolute Maximum Rating for continuous forward current is 20mA. Exceeding this, even for improved brightness, will cause thermal stress and significantly reduce the operational lifespan of the component.
Q: What does "MSL Level 3" mean for my SMT production line?
A: It means the component is sensitive to moisture. You must use the components within 168 hours (1 week) of opening the vacuum-sealed package. If not used in time, you risk internal cracking during reflow; baking is required to restore usability.
Q: Why does my procurement team need to specify bin codes like 'HG03' or 'N19-1'?
A: Without specifying bin codes, you may receive LEDs from across the entire performance range (e.g., Vf varying from 2.6V to 3.2V). This leads to visible brightness differences and potential current mismatch on the same PCB.
