📌 Product Overview
The XL-504SURD is a standard F5 diffused red LED manufactured by XINGLIGHT, designed for reliable performance in thru-hole assembly (THT) processes. 💡 It features a water-clear lens with a red colloid, utilizing InGaAlP technology to emit light at a dominant wavelength of 620–625nm. The component is engineered for a balanced compromise between visibility and power efficiency, making it suitable for a wide range of industrial and consumer electronics where DC drive stability is critical. The device is fully RoHS compliant and utilizes EIA standard packaging, ensuring compatibility with modern automated insertion equipment.
🔌 Typical Applications
The XL-504SURD serves as a versatile indicator light across various sectors. 👇 Key application scenarios include:
- Industrial & Consumer Electronics: Status indicators for home appliances (white goods), digital devices, and communication equipment.
- Automotive & Transportation: Dashboard illumination and interior signal lights.
- Infrastructure: Traffic instructions and urban lighting fixtures requiring high visibility.
- Specialized Devices: Electronic toys, teaching equipment, and medical beauty instruments where low-voltage DC drive is a prerequisite.
⚡ Key Technical Specifications
The table below outlines the initial electro-optical characteristics ($T_a=25^\circ C$) to help engineers determine the component's suitability for specific circuit designs.
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | $I_V$ | 400 | 600 | 900 | mcd | $I_F=20mA$ |
| Dominant Wavelength | $\lambda_d$ | 615 | 620 | 625 | nm | $I_F=20mA$ |
| Peak Wavelength | $\lambda_p$ | - | 625 | - | nm | $I_F=20mA$ |
| Forward Voltage | $V_F$ | 1.8 | 2.2 | 2.4 | V | $I_F=20mA$ |
| Viewing Angle | $2\theta_{1/2}$ | - | 30 | - | deg | $I_F=20mA$ |
| Spectral Width | $\Delta\lambda$ | - | 20 | - | nm | $I_F=20mA$ |
| Reverse Current | $I_R$ | - | - | $\le 10$ | $\mu A$ | $V_R=5V$ |
💡 Note: Luminous intensity bins are categorized as A5 (400-500mcd), A6 (500-700mcd), and A7 (700-900mcd). Voltage bins are available for tighter sorting (1.8V-2.0V to 2.2V-2.4V).
🚨 Absolute Maximum Ratings & Process Limits
To ensure reliability and prevent catastrophic failure during operation, the following limits must not be exceeded ($T_a=25^\circ C$).
| Parameter | Symbol | Max Rating | Unit | Notes |
|---|---|---|---|---|
| Power Dissipation | $P_D$ | 70 | mW | |
| Max Continuous Forward Current | $I_F$ | 20 | mA | |
| Peak Forward Current | $I_{Fp}$ | 80 | mA | Pulse width/duty cycle limits apply |
| Operating Temperature | $T_{opr}$ | -20 ~ +85 | $^\circ C$ | |
| Storage Temperature | $T_{stg}$ | -40 ~ +85 | $^\circ C$ | |
| Soldering (Wave/Reflow) | $T_{sol}$ | 240 | $^\circ C$ | $\le 6s$ |
| Soldering (Manual) | $T_{sol}$ | 300 | $^\circ C$ | $\le 3s$, 2.0mm from body |
⚠️ Caution: Soldering points must be >2.0mm from the colloid bottom to prevent thermal damage to the epoxy resin.
📦 Package, Dimensions & Assembly Notes
- Package Type: F5 / 5mm Round Radial (Long Leg).
- Dimensions: The lens diameter is approximately 5.0mm, with an overall length of 28.0mm depending on lead cut.
- Moisture Sensitivity: The XL-504SURD is classified at MSL 2.
- Packaging: Shipped in moisture-proof and anti-electrostatic foil bags, compatible with EIA standard handling systems.
- Assembly: Compatible with standard wave soldering and manual rework. Verify clearances to avoid mechanical stress on the PCB during the insertion process.
🚀 Sourcing & Supply Considerations
- Supply Chain: Verify packaging integrity (moisture-proof bags) upon receipt to ensure MSL compliance.
- Binning Codes: When placing orders for mass production, specify the required Brightness (A5-A7) and Voltage (N12-7 to N12-9) bin codes to ensure display uniformity.
- Authenticity: Source from authorized channels to guarantee compliance with the safety standards (ROHS) outlined in the datasheet.
❓ FAQ
Q: What is the typical forward voltage drop for the XL-504SURD?
A: The typical forward voltage ($V_F$) is 2.2V at a forward current of 20mA, with a maximum variation of 2.4V.
Q: Can this LED be used in outdoor lighting applications?
A: While it has high luminosity (up to 900mcd), the operating temperature range is limited to -20°C to +85°C. For outdoor environments subject to extreme weather, additional protective sealing or thermal management is required.
Q: How should I handle the component to avoid moisture damage?
A: The XL-504SURD has a Moisture Sensitivity Level (MSL) of 2. It should be used within 3 months if stored in the original packaging at <30°C and <70% RH. For longer storage, use a dry cabinet.
Q: Are there specific bins for color consistency?
A: Yes, the device features wavelength grading codes (HR01: 615-620nm, HR02: 620-625nm) to ensure color consistency in mass production.
Q: What is the maximum current for pulsed operation?
A: The Peak Forward Current ($I_{Fp}$) is rated for 80mA, significantly higher than the continuous rating, allowing for use in multiplexed display circuits.
