📌 Product Overview
The XL-1608PGC-06 from XINGLIGHT is a standard 0603 (1608 metric) Surface Mount Device (SMD) LED designed for general-purpose indication and backlighting. Engineered with a Green Diffused colloid, it balances luminous intensity (400–900 mcd) with a wide 120° viewing angle. For OEMs and EMS providers, this component represents a high-volume, cost-effective solution for status indicators and low-power illumination in consumer and industrial electronics. The critical selection variables for this model are the MSL 3 moisture sensitivity level, requiring careful handling before reflow, and the tight voltage binning which ensures consistent drive characteristics across the PCB.
🔌 Typical Applications & Design Context
Based on its robust industrial temperature range (-40°C to +85°C) and RoHS compliance, the XL-1608PGC-06 is ideally suited for the following scenarios:
- 🩺 Medical Devices: Essential for oximeter displays and endoscope indicator lights due to low power consumption.
- 🚗 Automotive Electronics: Suitable for non-critical interior indicators like keypad backlights and dashboard status symbols (Note: Verify AEC-Q standards if used in cabin applications).
- 🏭 Industrial & Smart Home: Utilized in electronic instrument panels and white appliance LED displays (nixie tube replacements).
- 📱 Communication Products: Effective for router status LEDs and set-top box (STB) front panels where diffused light reduces eye strain.
⚡ Key Technical Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | Iv | 400 | - | 900 | mcd | IF = 20mA |
| Forward Voltage | VF | 2.6 | - | 3.4 | V | IF = 20mA |
| Dominant Wavelength | λd | 515 | - | 530 | nm | IF = 20mA |
| Viewing Angle | 2θ1/2 | - | - | 120 | deg | IF = 20mA |
| Reverse Voltage | VR | - | - | 5 | V | - |
💡 Design Insight: The wide range in Luminous Intensity (400–900 mcd) suggests that strict binning (Codes E2-E8) is required during procurement to ensure visual uniformity on the final panel.
⚠️ Absolute Maximum Ratings & Process Limits
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Max Forward Current | IF | 20 | mA | Continuous operation |
| Peak Forward Current | IFP | 80 | mA | Pulse width ≤0.1ms, Duty ≤1/10 |
| Max Power Dissipation | PD | 75 | mW | Ta = 25°C |
| ESD Tolerance | ESD | 2000 | V | Human Body Model (HBM) |
| Operating Temp. | TOPR | -40 ~ +85 | °C | - |
| Storage Temp. | TSTR | -40 ~ +85 | °C | - |
| Soldering Temp. | TSOL | 260 | °C | ≤6 Seconds |
🛑 E-E-A-T Process Warning:
The MSL (Moisture Sensitivity Level) is 3. This is a critical mass production bottleneck.
- Failure Risk: If floor life exceeds 168 hours (baked or not), "popcorning" or delamination will occur during reflow, leading to open circuits or intermittent failures in the field.
- Thermal Derating: Do not drive at 20mA continuously if ambient temperature exceeds 50°C. Failure to derate current will accelerate phosphor degradation and luminous decay.
🏗️ Package, Dimensions & Assembly Notes
- Package Type: 0603 (Imperial) / 1608 (Metric) SMD.
- Dimensions: 1.6mm (L) x 0.8mm (W) x 0.6mm (H).
- Soldering Profile: Compatible with standard Infrared (IR) or Convection reflow.
- Preheat: Ramp rate max 3°C/sec to prevent thermal shock.
- Peak Temp: Max 235°C (for Pb-free process as per reliability table) or 260°C (manual).
- Time Above 183°C: 60-150 seconds.
- Assembly: Designed for high-speed SMT automation pick-and-place.
🚀 Assembly Tip: Due to the 120° wide viewing angle, ensure adjacent components or the enclosure housing do not mechanically obstruct the light path, as the diffused lens spreads light significantly.
📦 Procurement & Sourcing Insights
For procurement teams at OEMs/EMS, the XL-1608PGC-06 presents specific supply chain considerations:
- Binning Discipline: The datasheet lists specific codes for Brightness (E2-E8), Voltage (M18-M19), and Wavelength (HG02-HG04). Supply orders must explicitly specify these codes to avoid mixed-batch deliveries where LED brightness varies visibly on the same product line.
- Moisture Control: Since this is an MSL 3 component, verify that your supplier vacuum-seals the bags with desiccant. Open bags must be baked prior to use if they have been exposed to the factory floor for more than 168 hours.
- Sourcing Integrity: In the Shenzhen/Huaqiangbei market, 0603 LEDs are high-turnover commodities. "XINGLIGHT" branded parts must be verified for authenticity to avoid voltage drift issues common in unsorted generic replacements.
- Alternative Validation: When swapping brands, cross-reference the Forward Voltage (VF) bins. A generic replacement with a lower VF might cause current hogging if the circuit uses a simple resistor limiting network.
❓ Frequently Asked Questions
Q: Can I drive this LED at 30mA for higher brightness?
A: No. The Absolute Maximum Continuous Forward Current is 20mA. Exceeding this, even for short durations in a high ambient temperature environment, will cause immediate thermal stress and permanent lumen degradation or catastrophic failure.
Q: What is the risk of ignoring the MSL 3 rating?
A: Ignoring MSL 3 (floor life > 168 hours without bake) leads to internal package cracking during the high heat of reflow soldering. This manifests as "intermittent connectivity" or "dead on arrival" (DOA) units after the PCB cools down.
Q: Why does my panel look uneven if I order from different suppliers?
A: You are likely receiving mixed Brightness Bins. One batch might be 'E4' (500-550 mcd) and another 'E8' (800-900 mcd). To the human eye, this is a massive difference. You must lock the bin code (e.g., only E6) in your purchase order.
Q: Is this suitable for automotive exterior lighting?
A: No. The datasheet lists "Automotive electronics: backlight/indicator," implying interior use. It lacks the specific AEC-Q102 qualification and high-temperature durability required for exterior headlamps or DRLs.
