📌 Product Overview
The XL-A524SURUGW is a dual-color F5 (5mm) through-hole LED designed with a diffused lens and a common cathode configuration. 💡 It integrates high-brightness Red (peak 640nm) and Emerald Green (peak 525nm) chips into a single 4-pin package, enabling compact status indicator designs. 🚀 This component is specifically engineered for applications requiring visual signal blending and durability in varying environmental conditions.
🔎 Typical Applications
- Automotive Interiors: Dashboard illumination and control panel feedback lights.
- Backlight Modules: 🔦 Indicator strips for consumer electronics and appliance displays.
- Smart Home Devices: Status LEDs for IoT hubs, sensors, and switches.
- Signal Indication: 🚦 Power status and fault warning lights in industrial control gear.
📊 Key Technical Specifications
The table below outlines the electro-optical performance characteristics at $T_a=25^\circ C$.
| Parameter | Symbol (Red) | Red (Typ/Max) | Symbol (Green) | Green (Typ/Max) | Unit |
|---|---|---|---|---|---|
| Luminous Intensity | $I_v$ | - / 700 | $I_v$ | - / 14000 | mcd |
| Dominant Wavelength | $\lambda_d$ | 630 / 640 | $\lambda_d$ | 515 / 530 | nm |
| Forward Voltage | $V_F$ | 1.8 / 2.4 | $V_F$ | 2.8 / 3.4 | V |
| Viewing Angle | $2\theta_{1/2}$ | - / 30 | $2\theta_{1/2}$ | - / 30 | Degrees |
💡 Note: Green intensity significantly exceeds Red, necessitating current limiting adjustments for color balance.
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these parameters may cause permanent device failure or accelerated degradation. 🔒 Design margins must account for the dissipation differences between the Red (50mW) and Green (70mW) chips.
| Parameter | Symbol | Red | Green | Unit |
|---|---|---|---|---|
| Max Power Dissipation | $P_D$ | 50 | 70 | mW |
| Max Forward Current | $I_F$ | 20 | 20 | mA |
| Peak Forward Current | $I_{FP}$ | 80 | 80 | mA |
| Operating Temperature | $T_{OPR}$ | -20 to +85 | -20 to +85 | $^\circ C$ |
| Storage Temperature | $T_{STR}$ | -40 to +85 | -40 to +85 | $^\circ C$ |
Soldering Limits:
- Wave Soldering: Max 240°C for ≤6s.
- Manual Welding: Max 300°C for ≤3s.
- Keep soldering point ≥2.0mm from the colloid base to prevent thermal damage.
📦 Package, Dimensions & Assembly Notes
- Package Type: F5 Round (5mm diameter).
- Dimensions: Overall length is 28mm with a bulb height of 8.7mm.
- Lens: Diffused (Aerosol) colloid for wide light dispersion.
- Moisture Sensitivity: MSL Level 2 (must be used within 1 year of opening if not baked).
- Assembly: Compatible with standard EIA standard packaging feeds and radial insertion machines.
🚀 Sourcing & Supply Considerations
- Binning Codes: Verify Brightness (A5-A6, C1-C3) and Voltage (N12/N13) codes to ensure consistency in production batches.
- Authenticity: Source only from XINGLIGHT authorized channels to avoid counterfeit components with compromised luminosity.
- Samples: Request engineering samples to validate the specific diffusion index and color mixing ratio in your housing.
- Lead Time: This F5 platform is a standard commodity, typically offering better lead-time stability than niche SMD variants.
❓ Frequently Asked Questions
Q: What is the common pin configuration for the XL-A524SURUGW?
A: The datasheet specifies "Common Cathode" (共阴). This means the negative leg (cathode) is shared between the Red and Green chips, while the Anodes are separate for individual control.
Q: Why is the Green luminous intensity (14,000 mcd) so much higher than the Red (700 mcd)?
A: 💡 The human eye is significantly more sensitive to pure green light (around 555nm), and modern InGaN green dies are inherently more efficient than older AlGaAsP red technologies. To balance visual brightness, the Red chip may require a higher drive current or the Green may need PWM dimming.
Q: Can this LED be used in reflow soldering processes?
A: No, the F5 package is designed for Wave Soldering or Manual Welding. The absolute maximum rating specifies 240°C for wave soldering. Standard SMT reflow profiles (approx 260°C) will likely melt the epoxy lens or damage the lead frame.
Q: What does "Diffused" (Aerosol colloid) imply for the design?
A: The diffused lens scatters the light, providing a wide 30-degree viewing angle. This is ideal for indicator lights where the light source needs to be visible from off-angles, rather than focused spot illumination.
Q: How critical is the MSL Level 2 rating?
A: It indicates the component absorbs moisture from the atmosphere. If the moisture is not baked out prior to high-temperature soldering, internal "popcorning" cracks can occur. For storage longer than 1 year, baking is recommended.
