📌 Product Overview
The XL-502UBC is a standard 5mm (F5) through-hole LED manufactured by XINGLIGHT, utilizing a water-clear colloid to emit high-intensity blue light (460–475 nm). It is engineered for general-purpose indication and status lighting, offering a balance of luminous intensity and power efficiency.
🔑 Designers should focus on the component's specified viewing angle (30°) and forward voltage range (2.8–3.4V) to ensure compatibility with driver circuits. This component is suitable for DC low-voltage applications requiring long operating life and fast startup times.
🔍 Typical Applications
Based on the XL-502UBC's optical and electrical characteristics, typical use cases include:
- Consumer Electronics: Status indicators for home appliances and digital devices.
- Automotive: Dashboard illumination and interior signal lights (non-critical).
- Signage: Traffic instructions and urban lighting decorations requiring clear visibility.
- Instrumentation: Electronic clocks, medical beauty instruments, and educational devices.
- Toys: Electronic toys requiring interactive visual feedback.
📊 Key Technical Specifications
⚡ The following parameters are measured under standard test conditions (Ta=25°C, IF=20mA):
| Parameter | Symbol | Min | Typ. | Max | Unit |
|---|---|---|---|---|---|
| Luminous Intensity | Iv | 3000 | 4500 | 6000 | mcd |
| Dominant Wavelength | λd | 460 | 465 | 475 | nm |
| Peak Wavelength | λp | - | 465 | - | nm |
| Forward Voltage | VF | 2.8 | 3.0 | 3.4 | V |
| Viewing Angle | 2Ø1/2 | - | 30 | - | deg |
| Spectral Width | △λ | - | 30 | - | nm |
| Reverse Current | IR | - | - | ≤10 | μA |
💡 Note: Intensity deviation is within ±10%, and forward voltage deviation is controlled to ±0.1V.
⚠️ Absolute Maximum Ratings & Process Limits
⚠️ Exceeding these ratings may cause device failure or permanent damage. Stress beyond these limits is not recommended.
| Parameter | Symbol | Max Value | Unit | Conditions |
|---|---|---|---|---|
| Power Dissipation | Pd | 70 | mW | Ta=25°C |
| DC Forward Current | IF | 20 | mA | Continuous |
| Peak Forward Current | IFp | 80 | mA | Pulse |
| Operating Temp. | Topr | -20 to +85 | °C | Ambient |
| Storage Temp. | Tstg | -40 to +85 | °C | |
| Soldering (Wave) | Tsol | 240 | °C | ≤6s |
| Soldering (Manual) | Tsol | 300 | °C | ≤3s |
🔒 Moisture Sensitivity: The device has an MSL (Moisture Sensitivity Level) of 2. Ensure proper storage to prevent moisture ingress prior to soldering.
📦 Package, Dimensions & Assembly Notes
🔧 The XL-502UBC features an F5 radial package with specific dimensions:
- Appearance: F5/5.5×5.0×8.7×18mm
- Tolerance: ±0.50mm (unless otherwise noted).
- Leg Configuration: Short pins (short脚).
💡 Assembly Precautions:
- Soldering Distance: The welding point must be >2.0mm from the bottom of the colloid to prevent thermal damage.
- Packaging: EIA standard compliant, often in moisture-proof and anti-static foil bags.
- Handling: Avoid excessive mechanical stress on leads during PCB insertion.
🚢 Sourcing & Supply Considerations
When integrating the XL-502UBC into your BOM, consider these supply chain factors:
- Binning Codes: Verify brightness (B5-B8), voltage (N13-3 to N13-5), and wavelength (HB04-HB06) codes with the supplier to match your specific design requirements.
- Authenticity: Source from authorized channels to ensure ROHS compliance and reliability.
- Storage: Store at temperatures <30°C and humidity <70% if not used within 3 months; use desiccants for longer storage.
❓ Frequently Asked Questions
Q1: What is the forward voltage requirement for the XL-502UBC?
A: The typical forward voltage is 3.0V, with a range of 2.8V to 3.4V at 20mA. Designers should account for the maximum voltage when calculating current-limiting resistors.
Q2: Is the XL-502UBC compliant with environmental standards?
A: Yes, the datasheet specifies that this is an environmentally friendly product that meets ROHS requirements, ensuring it is free from hazardous substances above threshold limits.
Q3: What are the soldering limits for this LED?
A: For wave soldering, do not exceed 240°C for more than 6 seconds. For manual welding, the limit is 300°C for 3 seconds. Crucially, keep the solder joint at least 2.0mm away from the epoxy body.
Q4: What does MSL Level 2 mean for this component?
A: MSL Level 2 indicates the LED can withstand floor life of up to one year at <30°C / 60% RH after opening the vacuum-sealed bag before baking is required. It is suitable for standard assembly flows.
Q5: Can I pulse this LED at higher currents?
A: Yes, the Absolute Maximum Ratings allow for a peak forward current of 80mA. However, this is intended for pulsed operation, not continuous DC drive, to prevent thermal overload.
