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XL-DZ304SURD SMD LED — Technical Specifications & Design Guide

The XL-DZ304SURD 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 consis...

XL-DZ304SURD SMD LED — Technical Specifications & Design Guide

📌 Product Overview

The XL-DZ304SURD is a standard 3mm Through-Hole Technology (THT) LED designed by XINGLIGHT. It features a red diffused lens and colloid, optimized for clear status indication and panel lighting. 🛠️ With a compact footprint of 7.5x6.5x4.5mm, it balances visibility with board space efficiency, making it suitable for control panels and communication equipment.

This component focuses on delivering high luminous intensity (up to 900mcd) with stable forward voltage characteristics. 💡 It is particularly effective in industrial and medical scenarios where long operational life and visual clarity are critical for status monitoring.

🎯 Typical Applications

Based on its optical and electrical characteristics, the XL-DZ304SURD is designed for integration into:

  • Status Indicators: Power on/off, network activity, and fault detection LEDs for consumer electronics and white goods.
  • Medical Devices: Signal lights for testing instruments and monitoring equipment requiring reliable visual feedback.
  • IoT & Connectivity: status lights for converters, storage servers, and communication modules.
  • Industrial Instrumentation: HMI panels and electronic testing equipment requiring robust through-hole components.

📏 Key Technical Specifications

The table below outlines the initial electrical and optical characteristics ($T_a=25^\circ\text{C}$). Designers should pay close attention to the Luminous Intensity binning codes to ensure uniformity across mass production batches.

ParameterSymbolMinTypMaxUnitTest Conditions
Luminous Intensity$I_V$300-900mcd$I_F=20\text{mA}$
Dominant Wavelength$\lambda_d$615-635nm$I_F=20\text{mA}$
Peak Wavelength$\lambda_p$-625-nm$I_F=20\text{mA}$
Forward Voltage$V_F$1.8-2.4V$I_F=20\text{mA}$
Reverse Current$I_R$--5$\mu\text{A}$$V_R=5\text{V}$
Viewing Angle$2\theta_{1/2}$-45-deg$I_F=20\text{mA}$

⚠️ Note: Grouping (binning) codes for Brightness (A4-A7), Voltage (N12-7 to N12-9), and Wavelength (HR01-HR04) are available for strict color and intensity matching.

⚡ Absolute Maximum Ratings & Process Limits

Exceeding these values may cause permanent damage to the device. These stress ratings are critical for robust design and ensuring passing grades during environmental testing.

ParameterSymbolMaxUnit
Max Power Dissipation$P_D$50mW
Max Continuous Forward Current$I_F$20mA
Peak Forward Current$I_{FP}$80mA
Max Reverse Voltage$V_R$5V
ESD ToleranceESD2000V
Operating Temperature$T_{OPR}$-40 to +85$^\circ\text{C}$
Storage Temperature$T_{STR}$-40 to +85$^\circ\text{C}$
Soldering Temp/Time$T_{SOL}$260$^\circ\text{C}$

🔒 Critical Warning: The soldering limit is strictly $\le 6$ seconds at $260^\circ\text{C}$. Longer exposure risks delamination of the epoxy or internal wire bond damage.

📦 Package, Dimensions & Assembly Notes

  • Package Type: 3mm Diffused Round Lamp (THT).
  • Dimensions: The overall appearance dimension is $7.5 \times 6.5 \times 4.5\text{mm}$.
  • Tolerance: Standard tolerance is $\pm 0.25\text{mm}$ unless otherwise noted.
  • Assembly: Designed for standard PCB lead bending. The datasheet specifies a Lead Integrity test load of 2.5N ($0.25\text{kgf}$), which implies designers should not exceed this mechanical stress during insertion.
  • Packaging: Supplied in moisture-proof and anti-electrostatic foil bags to maintain MSL 2 compliance.

🚀 Sourcing & Supply Considerations

  • Verification: Ensure procurement agents verify the "XINGLIGHT" branding to avoid generic substitutes with wider optical tolerances.
  • Storage: Inventory should be rotated within 3 months if stored in original packaging ($30^\circ\text{C}$ / 70% RH) to prevent moisture-related soldering defects.
  • Binning: Specify brightness codes (e.g., A7 for high intensity) at the time of quotation to guarantee panel uniformity.

❓ Frequently Asked Questions

Q: What is the MSL (Moisture Sensitivity Level) of this LED?
A: The XL-DZ304SURD is classified as MSL 2. This means it can be exposed to a maximum floor life of 1 year at $30^\circ\text{C}$ / 85% RH before baking is required for soldering.

Q: Can this LED be used in outdoor environments?
A: While the operating temperature range is wide ($-40^\circ\text{C}$ to $+85^\circ\text{C}$), the water resistance depends on the product's enclosure. The component itself is not IP-rated and requires a sealed housing for outdoor or high-humidity industrial use.

Q: How should I handle ESD protection during assembly?
A: The component has a 2000V ESD rating. Workstations must use grounded mats, wrist straps, and ionizers. Keeping the electrostatic field voltage below 100V within 1 foot of the component is recommended to prevent latent damage.

Q: What is the typical Forward Voltage drop I should budget for in my circuit design?
A: While the maximum is 2.4V, the typical requirement is to design for a range. The binning codes (N12-7 to N12-9) range from 1.8V to 2.4V. Designing the driver circuit to accommodate up to 2.5V ensures safety margins across all bins.

Q: Is this component RoHS compliant?
A: Yes, the datasheet explicitly confirms it is an environmental protection product meeting ROHS requirements.

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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