The ELS-816USRWA/S530-A3 is an infrared (IR) emitter manufactured by EVERLIGHT. Below are its key specifications, descriptions, and features:
Specifications:
- Wavelength (Peak): 940nm
- Forward Current (IF): 100mA
- Forward Voltage (VF): 1.5V (typical)
- Radiant Intensity (Min): 35mW/sr @ 100mA
- Viewing Angle (2θ½): ±20°
- Operating Temperature Range: -40°C to +85°C
- Package Type: 5mm Round LED
- Lens Appearance: Water Clear
- Lead Material: Copper
Descriptions:
- High-efficiency 940nm infrared emitter designed for remote control and sensing applications.
- Features a 5mm round package with a water-clear lens for optimal IR transmission.
- Suitable for automotive, industrial, and consumer electronics applications.
Features:
- High radiant intensity for reliable performance.
- Low forward voltage for energy efficiency.
- Wide operating temperature range for harsh environments.
- RoHS compliant and lead-free.
This IR emitter is commonly used in remote controls, security systems, and optical sensors.
(Note: Always refer to the official datasheet for detailed technical parameters and application guidelines.)
# Technical Analysis of EVERLIGHT’s ELS-816USRWA/S530-A3 LED Component
## 1. Practical Application Scenarios
The ELS-816USRWA/S530-A3 is a high-brightness, surface-mount LED designed for applications requiring reliable illumination with precise color consistency. Key use cases include:
- Automotive Lighting: Used in dashboard backlighting, interior ambient lighting, and status indicators due to its high luminous intensity and stable performance under varying temperatures.
- Consumer Electronics: Integrated into LCD backlighting for displays, keypad illumination, and wearable devices, benefiting from its compact form factor and low power consumption.
- Industrial Indicators: Employed in control panels and machinery status lights where long-term reliability and visibility under harsh conditions are critical.
- Medical Devices: Suitable for diagnostic equipment and handheld instruments due to its low electromagnetic interference (EMI) and consistent output.
The LED’s wide operating temperature range (-40°C to +85°C) and high electrostatic discharge (ESD) protection (up to 8kV) make it ideal for environments with electrical noise or thermal fluctuations.
## 2. Common Design-Phase Pitfalls and Avoidance Strategies
Pitfall 1: Thermal Management Issues
Excessive current or inadequate heat dissipation can degrade LED performance.
- Solution: Implement proper PCB thermal vias, use heat sinks, and adhere to the recommended forward current (If) specified in the datasheet.
Pitfall 2: Incorrect Forward Voltage Matching
Mismatched driver voltage can lead to uneven brightness or premature failure.
- Solution: Verify the forward voltage (Vf) of the LED batch and design driver circuits with appropriate current-limiting resistors or constant-current drivers.
Pitfall 3: Poor Optical Alignment
Misaligned LEDs in backlighting or indicator applications cause uneven illumination.
- Solution: Use precision pick-and-place machines during assembly and verify alignment with optical testing.
Pitfall 4: ESD Damage During Handling
Static discharge can degrade LED performance without visible damage.
- Solution: Follow ESD-safe handling procedures, including grounded workstations and anti-static packaging.
## 3. Key Technical Considerations for Implementation
- Electrical Parameters: Operate within the specified forward current (typically 20mA) to ensure longevity. Exceeding this value reduces lifespan.
- Optical Characteristics: Verify dominant wavelength and viewing angle compatibility with the application (e.g., narrow-angle for indicators vs. wide-angle for backlighting).
- Mechanical Constraints: Ensure PCB pad layout matches the LED’s footprint to avoid soldering defects.
- Environmental Resilience: Confirm IP rating (if applicable) for moisture or dust resistance in outdoor or industrial settings.
By addressing these factors, designers can maximize the performance and reliability of the ELS-816USRWA/S530-A3 in their applications.