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XL-3433UYC-02 SMD LED — Technical Specifications & Design Guide

LED Technology · 2026-03-09

XL-3433UYC-02 SMD LED — Technical Specifications & Design Guide

📌 Product Overview

The XL-3433UYC-02 is a high-performance Yellow SMD LED from XINGLIGHT, 📦 packaged in a compact 3.4x3.3x1.9mm footprint with a water-clear lens. It is specifically engineered for applications requiring strong luminous intensity and robust thermal management, such as automotive exterior lighting and commercial signage. ✨ While the nominal specifications are standard, the real design focus lies in managing the 60mA forward current to maintain color consistency within the 585-595nm wavelength range.

🎯 Typical Applications

Based on its optical characteristics and robust thermal range (-40°C to +85°C), this component is ideal for:

  • Automotive Lighting: Tail lights and indicator lights requiring high reliability.
  • Commercial Display: Advertising light boxes and backlighting for LCDs.
  • Interior & Decor: Flexible light strips and interior ambient lighting.
  • Industrial Indication: Status indicators where high visibility is critical.

📊 Key Technical Specifications

💡 The following optical and electrical parameters are measured at standard conditions (Ta=25°C, IF=60mA):

ParameterSymbolMin.Typ.Max.Unit
Luminous IntensityΦ10-20LM
Dominant Wavelengthλd585-595nm
Forward VoltageVF1.8-2.4V
Viewing Angle2Ø1/2-120°-deg
Reverse CurrentIR--≤5μA

⚠️ Absolute Maximum Ratings & Process Limits

🔒 Exceeding these limits may cause permanent damage. Design margins must account for the 60mA continuous current ceiling.

ParameterSymbolMax. ValueUnitNotes
Max Power DissipationPD200mW-
Max Forward CurrentIF60mAContinuous DC
Peak Forward CurrentIFP120mAPulse ≤0.1ms
Max Reverse VoltageVR5V-
ESD AbilityESD2000VHuman Body Model
Operating Temp.TOPR-40 ~ +85°C-

📦 Package, Dimensions & Assembly Notes

The component utilizes a 3433 metric surface-mount package (3.4mm x 3.3mm x 1.9mm). 👇 Key assembly and reliability considerations include:

  • Soldering: Compatible with Infrared Reflow soldering.
  • Moisture Sensitivity: Classified as MSL Level 3.
  • Thermal Profile:
    • Lead-free: Peak 255°C (max 6°C/sec ramp).
    • Lead process: Peak 235°C.
  • Packaging: EIA standard compliant for automated SMT production.

🚀 Sourcing & Supply Considerations

When integrating the XL-3433UYC-02 into mass production, verify the following supply chain factors:

  • Bin Selection: Confirm specific Brightness (H7-H9) and Voltage (N12-7 to N12-9) grades to match driver circuits.
  • Authenticity: Source exclusively through XINGLIGHT authorized channels to ensure ROHS compliance.
  • MSL Handling: Ensure proper storage and baking if the packaging has been opened, due to MSL 3 classification.

❓ FAQ

Q: What is the maximum current I can drive the XL-3433UYC-02 with continuously? A: The Absolute Maximum Rating for continuous forward current is 60mA. While pulses up to 120mA are allowed, exceeding 60mA DC risks thermal degradation.

Q: What does the "MSL Level 3" rating mean for my assembly process? A: It means the component is sensitive to moisture. If the sealed bag is open, you must bake the LEDs before soldering to prevent internal damage (popcorning) during reflow.

Q: Can this LED be used for outdoor automotive applications? A: Yes, the datasheet explicitly lists "Car tail lights" and supports an operating temperature range of -40°C to +85°C, making it suitable for harsh environments.

Q: What is the dominant wavelength range for this Yellow LED? A: The dominant wavelength (λd) ranges from 585nm to 595nm. For precise color matching, you can select specific bins (HY03 to HY06) when ordering.

Q: Is this component ROHS compliant? A: Yes, the datasheet confirms that the environmental protection process complies with the ROHS Directive.

Q: What is the recommended soldering profile for this LED? A: For lead-free processes, peak temperature should not exceed 255°C (with 5-10s soak time above 217°C). For lead processes, the limit is 235°C.

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