📌 Product Overview
The XL-302UBC is a standard 3mm radial LED featuring a blue luminous chip encased in a water-clear white colloid. 💡 Designed for general-purpose indication, this component offers a typical luminous intensity of 1500 mcd at 20mA, making it suitable for high-brightness status indicators and backlighting arrays.
This model is engineered to support low-voltage DC drive circuits with fast startup characteristics. 👇 It serves as a reliable optical solution for digital communication interfaces and industrial control panels where consistent light output and long operating life are critical.
🚀 Typical Applications
- Consumer Electronics & Indicators: Integration into home appliances, digital clocks, and electronic toys for status display.
- Automotive & Transportation: Dashboard illumination and interior signal lights within standard temperature ranges.
- Industrial & Medical: 🏭 Usage in electronic teaching equipment, medical beauty instruments, and traffic instruction devices requiring clear visual feedback.
- Urban Lighting & Decor: Implementation in small-scale lighting decorations and city beautification projects due to its distinct blue wavelength.
📈 Key Technical Specifications
The optical performance of the XL-302UBC is categorized into specific bins to ensure consistency.
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Luminous Intensity | Iv | IF = 20mA | 1200 | 1500 | 2100 | mcd |
| Dominant Wavelength | λd | IF = 20mA | 460 | — | 470 | nm |
| Peak Wavelength | λp | IF = 20mA | — | 465 | — | nm |
| Forward Voltage | VF | IF = 20mA | 2.8 | 3.0 | 3.4 | V |
| Viewing Angle | 2Ø1/2 | IF = 20mA | — | 30 | — | deg |
| Spectral Width | △λ | IF = 20mA | — | 25 | — | nm |
| Reverse Current | IR | VR = 5V | — | — | ≤10 | μA |
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause device failure or permanent performance degradation. ⚡ Design margins must account for these limits to ensure reliability in harsh environments.
| Parameter | Symbol | Rating | Unit | Notes |
|---|---|---|---|---|
| Power Dissipation | Pd | 70 | mW | Derate above 25°C ambient |
| Max Forward Current | IF | 20 | mA | Continuous DC operation |
| Peak Forward Current | IFp | 80 | mA | Pulse width ≤ 10ms |
| Operating Temperature | Topr | -20 ~ +85 | °C | Ambient range |
| Storage Temperature | Tstg | -40 ~ +85 | °C | Non-operating |
| Soldering (Wave) | Tsol | 240 | °C | Max 6 seconds duration |
| Soldering (Manual) | Tsol | 300 | °C | Max 3 seconds @ 2mm from body |
🔒 Package, Dimensions & Assembly Notes
The XL-302UBC utilizes the standard F3 mold package with short leads. 📏 The exterior dimensions are precisely controlled at 3.8mm (Diameter) x 3.0mm (Width) x 5.2mm (Height), with a total length of 18mm.
Assembly & Handling:
- Moisture Sensitivity: Classified as MSL Level 2. 🏭 Components must be mounted within 1 year of opening the moisture-proof anti-static bag.
- Soldering Distance: The soldering point must be at least 2.0mm away from the bottom of the colloid to prevent thermal damage to the epoxy.
- Lead Integrity: Leads can withstand bending loads of 2.5N (0.25kgf) for 3 cycles (0°~ 90° ~ 0°).
📦 Sourcing & Supply Considerations
When procuring the XL-302UBC for mass production, specific attention must be paid to binning codes for brightness (A9-B2), voltage (N13-3 to N13-5), and wavelength (HB04-HB06) to ensure visual uniformity across batches. 💡
- Supply Chain: Verify packaging integrity to ensure the anti-static foil bag is sealed.
- Quality Assurance: Request reliability test data regarding working life (1000hrs) and high-temperature storage to validate lot performance.
- Alternative Sourcing: Contact LDeepAI for cross-reference verification if evaluating drop-in replacements from other manufacturers.
❓ Frequently Asked Questions
Q: What is the tolerance for the forward voltage of the XL-302UBC?
A: The forward voltage (VF) typically centers at 3.0V but ranges from a minimum of 2.8V to a maximum of 3.4V when driven at 20mA. Designers should select appropriate current-limiting resistors to accommodate the maximum 3.4V to prevent overcurrent.
Q: Can this LED be used in outdoor applications?
A: While the LED is designed for urban lighting and traffic indications, the storage and operating temperature limits (-20°C to +85°C) must be strictly observed. For extreme outdoor environments, additional waterproofing and thermal derating may be required.
Q: How should I handle the component to prevent moisture damage?
A: The XL-302UBC has a Moisture Sensitivity Level (MSL) of 2. It should be stored in conditions not exceeding 30°C and 70% relative humidity. If the moisture-proof bag has been open for more than 3 months, baking in a dry box is recommended before assembly.
Q: What are the constraints for manual soldering?
A: Manual welding must not exceed 300°C for longer than 3 seconds. Crucially, the soldering point must maintain a distance of at least 2.0mm from the base of the LED body to avoid thermal stress damage to the colloid.
