📌 Product Overview
The XL-DZ234SURD is a high-efficiency, 4-chip red LED integrated into a compact 12×5.2×14.2mm package. Designed by XINGLIGHT, this component leverages a series connection of four internal dice to achieve higher luminous intensity compared to standard single-chip indicators.
💡 This device is specifically engineered for status indication and feedback interfaces where wide visibility and long-term stability are critical.
🎯 Typical Applications
Based on the 110-degree viewing angle and robust environmental ratings, this LED fits the following scenarios:
- 🖥️ Server & Storage Status: Ideal for RAID array and communication interface panels requiring clear visibility from wide angles.
- 🩺 Medical Instruments: Suitable for converter status indicators and patient monitoring devices where reliability is paramount.
- 🌐 IoT Devices: Provides efficient status feedback for smart hubs and sensor nodes.
- 🧪 Test Equipment: Used in electronic testing instruments for signal pass/fail indication.
⚡ Key Technical Specifications
The following electro-optical parameters are measured at Ta=25℃ with IF=20mA per leg (effectively 20mA total for the series string).
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Luminous Intensity | Iv | 50 | - | 500 | mcd |
| Dominant Wavelength | λd | 615 | - | 635 | nm |
| Peak Wavelength | λp | - | 625 | - | nm |
| Forward Voltage | VF | 1.8 | - | 2.4 | V |
| Viewing Angle | 2Ø1/2 | - | 110° | - | deg |
| Reverse Current | IR | - | - | ≤5 | μA |
💡 Design Note: The wide variance in luminous intensity (50-500mcd) necessitates specific binning selection during procurement to ensure visual uniformity across the panel.
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these parameters may cause permanent device failure. 👇 These ratings are critical for driver circuit design.
| Parameter | Symbol | Value | Unit | Conditions |
|---|---|---|---|---|
| Max Power Dissipation | PD | 200 | mW | - |
| Max Continuous Forward Current | IF | 80 | mA | 4×20mA Series |
| Peak Forward Current | IFP | 320 | mA | Pulse width ≤5ms |
| Max Reverse Voltage | VR | 5 | V | - |
| ESD Susceptibility | ESD | 2000 | V | Human Body Model |
| Operating Temperature | TOPR | -40 ~ +85 | ℃ | Derate power above 25℃ |
🔒 Soldering Constraint: Maximum soldering temperature is 260℃ for ≤5 seconds. Exceeding this duration risks degrading the red colloid and internal bonds.
📦 Package, Dimensions & Assembly Notes
- Package Type: 4-Chip Through-Hole Device (THT) with Water Clear Red colloid.
- Dimensions:12.0 × 5.2 × 14.2 mm. Tolerances are ±0.25mm unless noted.
- Assembly: Designed for standard In-Circuit Test (ICT) and wave soldering processes.
- Moisture Sensitivity: MSL Level 2. 📉 Devices must be mounted within 1 year of bag seal date to prevent moisture-induced cracking (popcorning) during soldering.
- Packaging: EIA Standard packaging in moisture-proof and anti-electrostatic foil bags.
🚢 Sourcing & Supply Considerations
- 🔍 Binning Codes: Specify brightness (Code A1-A5), voltage (Code N12-7 to N12-9), and wavelength (Code HR01-HR04) to maintain lot-to-lot consistency.
- 🛡️ Compliance: Fully ROHS compliant, ensuring suitability for EU medical and IoT export markets.
- ⏳ Availability: Standard EIA packaging facilitates automated handling, but verify lead times for custom binning combinations to prevent production bottlenecks.
❓ Frequently Asked Questions
Q: What is the actual current consumption per chip in this 4-die array?
The XL-DZ234SURD connects four LED chips internally in series. The "Typical" drive current of 20mA flows through the entire series string, resulting in a total system current of 20mA, not 80mA independently.
Q: How does the 110° viewing angle affect panel design?
The wide 110° dispersion ensures the status indicator remains visible from oblique angles, which is essential for server racks mounted high in data centers. However, designers should avoid placing apertures too close to the diffuser to prevent hotspots.
Q: Can this LED be used in high-humidity environments?
Yes, but with caveats. While the device has undergone "High Temperature and High Humidity" testing (85°C/85% RH), proper sealing of the host enclosure is recommended. The MSL Level 2 rating requires the LEDs be soldered within a specified timeframe after opening the moisture-proof bag.
Q: Why does the forward voltage range matter for my circuit design?
The VF ranges from 1.8V to 2.4V (per the 20mA spec string, likely referring to the total array drop depending on binning). ⚠️ Your driver circuit must accommodate this variance to ensure consistent brightness across units without overdriving the lower-voltage bins.
Q: Is this component suitable for medical devices?
The datasheet explicitly lists "Medical Treatment" as an application category. Combined with ROHS compliance and high reliability testing (1000hrs endurance), it is a viable candidate for non-invasive medical indicators and converters.
