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XL-504UGD SMD LED — Technical Specifications & Design Guide

The XL-504UGD 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-504UGD SMD LED — Technical Specifications & Design Guide

📌 Product Overview

The XINGLIGHT XL-504UGD is a standard F5 (5mm) radial LED featuring a green colloid and water-clear lens, emitting a dominant green wavelength typically centered at 520nm. 📦 It is designed for general-purpose through-hole soldering (THT) on PCBs or wire-lead applications. This component balances high luminous intensity (up to 8000 mcd) with low power consumption (70mW). It targets engineers requiring reliable status indicators or illumination in consumer electronics and industrial control panels, prioritizing ease of assembly and long-term stability.

💡 Typical Applications

  • Indicator Lights: 📟 Status and signal lights for home appliances (AC/DC interfaces) and digital communication devices.
  • Automotive Electronics: 🚗 Interior dashboard illumination and non-critical indicator lamps (cluster illumination).
  • Consumer Electronics: ⏰ Electronic clocks, toys, and educational equipment where standard through-hole assembly is preferred.
  • Decorative Lighting: ✨ Urban lighting projects and decorative lamp strips requiring a 30-degree viewing angle.

📈 Key Technical Specifications

📊 The table below outlines the optical and electrical performance characteristics under standard test conditions ($T_a = 25^\circ C$).

ParameterSymbolMinTypMaxUnitTest Conditions
Luminous Intensity$I_V$400060008000mcd$I_F = 20\text{mA}$
Dominant Wavelength$\lambda_d$515520530nm$I_F = 20\text{mA}$
Forward Voltage$V_F$2.83.03.4V$I_F = 20\text{mA}$
Viewing Angle$2\theta_{1/2}$-30-deg$I_F = 20\text{mA}$
Spectral Width$\Delta\lambda$-30-nm$I_F = 20\text{mA}$
Reverse Current$I_R$--$\le 10$$\mu\text{A}$$V_R = 5\text{V}$

⚠️ Note: Products are binned for brightness (B7-B9) and voltage (N13-3 to N13-5) to ensure batch consistency.

🚨 Absolute Maximum Ratings & Process Limits

⚡ Designers must adhere to these stress limits to prevent irreversible damage or degradation of the LED junction.

ParameterSymbolRatingUnitNotes
Power Dissipation$P_d$70mWDerate above 25°C ambient
Max Continuous Forward Current$I_F$20mA
Peak Forward Current$I_{Fp}$80mAPulse width $\le 10\text{ms}$, duty $\le 1/10$
Operating Temperature$T_{opr}$-20 to +85°C
Storage Temperature$T_{stg}$-40 to +85°C
Soldering (Manual)$T_{sol}$300°C$\le 3$ seconds
Soldering (Wave)$T_{sol}$240°C$\le 6$ seconds
Lead Spacing-$> 2.0$mmDistance from colloid bottom

🔒 Critical Warning: Ensure soldering points maintain a clearance of 2.0mm from the epoxy body to prevent thermal damage during assembly.

📦 Package, Dimensions & Assembly Notes

The XL-504UGD utilizes a standard F5 round package (5mm diameter) with a long leg structure for secure PCB mounting.

  • Dimensions: $\varnothing 5.0 \times 8.7 \times 28.0\text{mm}$ (L x W x H).
  • Tolerance: $\pm 0.50\text{mm}$ unless otherwise specified.
  • Packaging: Shipped in EIA standard compliant bags with moisture-proof and anti-electrostatic foil bags.
  • MSL: Moisture Sensitivity Level 2 (Floor life: 1 year at $\le 30^\circ\text{C}$ / 85% RH).
  • Soldering: Compatible with wave soldering profiles up to 240°C.

🚀 Sourcing & Supply Considerations

  • Consistency & Binning: 💡 Strictly specify binning codes (Brightness B7-B9, Voltage N13, Wavelength HG02-HG04) to maintain uniformity in mass production.
  • Authenticity: Source XINGLIGHT products through authorized channels to avoid counterfeits that may not meet the 70mW power dissipation safety ratings.
  • Samples: Request samples from the specific production batch to verify color coordinate ($X, Y$) deviations within $\pm 0.01$.
  • Supply Chain: Confirm lead times for "Green Colloid" variants, as standard water-clear alternatives usually have better availability.

❓ FAQ

Q: What is the viewing angle of the XL-504UGD?
A: The typical viewing angle ($2\theta_{1/2}$) is 30 degrees. This makes it suitable for focused indicators rather than wide-area diffuse lighting.

Q: Can this LED be used with a 5V power supply directly?
A: No. The Forward Voltage ($V_F$) is typically 3.0V. To use with a 5V supply, a current-limiting resistor is required. At 20mA, a $100\Omega$ resistor is generally recommended.

Q: What are the brightness bin codes for this model?
A: The XL-504UGD is graded into three bins: B7 (4000-5000 mcd), B8 (5000-6000 mcd), and B9 (6000-8000 mcd). Ensure you specify the required bin when placing an order.

Q: Is the XL-504UGD RoHS compliant?
A: Yes, this is an environmental protection product that meets ROHS requirements, suitable for export to markets with strict hazardous substance restrictions.

Q: What is the maximum soldering temperature for manual welding?
A: For manual welding, the maximum temperature is 300°C for a duration not exceeding 3 seconds. The iron must not touch the 2.0mm zone above the colloid base.

Q: How should the LEDs be stored to prevent moisture damage?
A: Store at temperatures not exceeding 30°C with relative humidity below 70%. If the sealed moisture-proof bag is open, use the components within 3 months or store in a dry cabinet.

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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