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XL-502UGD SMD LED — Technical Specifications & Design Guide

The XL-502UGD from XINGLIGHT is a LED designed for indicator and backlight applications. This technical guide helps design engineers and procurement teams evaluate the component for board integration, assess consisten...

XL-502UGD SMD LED — Technical Specifications & Design Guide

📌 Product Overview

The XL-502UGD is a versatile F5 round LED from XINGLIGHT, engineered to deliver high luminous intensity in a standard 5mm radial package. This component utilizes a green colloid and is optimized for low-voltage DC drive scenarios, offering a balance between high brightness (up to 8000 mcd) and energy efficiency. 💡 It serves as a robust solution for status indication and backlighting in consumer electronics and industrial control panels.

Designed for durability, the XL-502UGD complies with ROHS standards and features a Moisture Sensitivity Level (MSL) of 2. It is particularly suitable for designs requiring fast startup and long operating life, such as automotive indicators or urban lighting fixtures, where consistent performance under varying environmental conditions is critical.

🎯 Typical Applications

Based on its forward current rating (20mA) and F5 dimensions, the XL-502UGD is widely utilized across sectors requiring reliable through-hole technology (THT).

  • Industrial & Consumer Electronics: Indicator lights for home appliances, digital communication devices, and electronic teaching equipment.
  • Automotive Systems: Dashboard illumination and internal signal lights where vibration resistance is required.
  • Infrastructure: Traffic instruction signals and city beautification lighting projects.
  • Specialized Devices: Medical beauty instruments and electronic clocks, leveraging clear visibility and specific wavelength (520nm-530nm) output.

⚡ Key Technical Specifications

💡 The following table outlines the optoelectronic characteristics at an ambient temperature of 25°C (Ta=25°C). Designers should pay close attention to the Luminous Intensity (Iv) and Dominant Wavelength binning to ensure color consistency.

ParameterSymbolMinTypMaxUnitTest Conditions
Luminous IntensityIv400060008000mcdIF = 20mA
Dominant Wavelengthλd515520530nmIF = 20mA
Peak Wavelengthλp-525-nmIF = 20mA
Forward VoltageVF2.83.03.4VIF = 20mA
Viewing Angle2Ø1/2-30-degIF = 20mA
Reverse CurrentIR--≤10μAVR = 5V

Note: Specific binning codes (e.g., Brightness B7-B9, Voltage N13-3 to N13-5) allow for tighter selection during mass production sourcing.

🚨 Absolute Maximum Ratings & Process Limits

🔒 Exceeding these ratings may cause permanent device failure or significant degradation in optical performance. These limits are critical for designing safety margins into your power supply circuitry.

ParameterSymbolRatingUnitNotes
Power DissipationPd70mW-
Max Continuous Forward CurrentIF20mA-
Peak Forward CurrentIFp80mAPulse width/duty cycle limits apply
Operating TemperatureTopr-20 ~ +85°C-
Storage TemperatureTstg-40 ~ +85°C-
Soldering (Wave)Tsol240°CMax 6 seconds
Soldering (Manual)Tsol300°CMax 3 seconds

Crucial Design Note: The soldering point must remain at least 2.0mm above the bottom of the colloid to prevent thermal damage to the epoxy package.

📦 Package, Dimensions & Assembly Notes

  • Package Type: F5 Diffused Round Lamp (5mm diameter).
  • Dimensions: The overall body length is approximately 18mm with a diameter of 5.5mm. Pin spacing and length follow standard EIA specifications for automatic insertion.
  • Assembly: 👇 Designed for standard Through-Hole Technology (THT) processes.
  • Packaging: Supplied in moisture-proof and anti-static foil bags (EIA standard).
  • MSL Level: 2. This indicates the components can be exposed to ambient moisture (≤30°C / 60% RH) for up to one year before baking is required for soldering.

🚀 Sourcing & Supply Considerations

When sourcing the XL-502UGD for volume production, consider the following supply chain and engineering factors:

  • Binning Management: Verify bin codes for Brightness (B7-B9) and Voltage (N13-3/4/5) to ensure uniformity across batches.
  • Authenticity: Cross-reference packaging markings to confirm EIA standard compliance and avoid counterfeit components.
  • Sample Evaluation: Request samples with specific wavelength grading (HG02-HG04) if color matching is critical for UI design.
  • Lead Time: F5 LEDs are typically standard stock items, but specific color/binning combinations may have varying lead times.

❓ FAQ

Q: What is the typical forward voltage for this LED?
A: The typical forward voltage (VF) is 3.0V at a rated current of 20mA, with a maximum variance up to 3.4V.

Q: Can this LED be used in outdoor environments?
A: Yes, the operating temperature range is -20°C to +85°C, making it suitable for traffic instructions and urban lighting, provided it is housed in a weatherproof enclosure.

Q: What is the viewing angle of the XL-502UGD?
A: The typical viewing angle (2Ø1/2) is 30 degrees, making it suitable for focused indicator lights rather than wide-area illumination.

Q: How should I handle these components regarding moisture?
A: This is an MSL 2 rated device. It can be stored at <30°C and 60% RH for up to one year without baking. For storage beyond 3 months, a dry cabinet or nitrogen storage is recommended.

Q: What is the maximum soldering heat resistance?
A: The LED can withstand wave soldering up to 240°C for a maximum of 6 seconds. The solder joint must be >2.0mm from the epoxy base to prevent damage.

About Leon Zhang

Leon Zhang is the founder of LDeepAI, focusing on AI-assisted electronic component sourcing and verified China supply-chain support for overseas buyers. He previously worked within the Huaqiang Group ecosystem, including experience related to HQEW, one of China's well-known electronic component trading platforms. This background gives him practical insight into China's electronic component supply-chain structure, supplier screening, channel verification and cross-border sourcing workflows.

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