Professional IC Distribution & Technical Solutions

The ELM-1001EWA is a surface-mount LED component manufactured by EVERLIGHT. Below are the factual specifications, descriptions, and features of this product:

Specifications:

• Manufacturer: EVERLIGHT
• Part Number: ELM-1001EWA
• LED Color: White
• Lens Appearance: Water Clear
• Forward Voltage (Vf): 3.2V (Typical)
• Forward Current (If): 20mA
• Luminous Intensity (Iv): 1200mcd (Minimum)
• Viewing Angle: 120°
• Package Type: SMD (Surface Mount Device)
• Dimensions (L x W x H): 3.2mm x 1.6mm x 1.1mm
• Operating Temperature Range: -40°C to +85°C
• Storage Temperature Range: -40°C to +100°C

Descriptions:

• The ELM-1001EWA is a high-brightness white LED designed for surface-mount applications.
• It features a wide viewing angle of 120°, making it suitable for backlighting and indicator applications.
• The LED is RoHS compliant, ensuring environmental safety.

Features:

• High brightness (1200mcd minimum)
• Wide viewing angle (120°)
• Low power consumption
• Compact SMD package
• RoHS compliant
• Reliable performance across a wide temperature range

This LED is commonly used in backlighting, automotive displays, consumer electronics, and general lighting applications.

(Note: For exact performance characteristics, refer to the official EVERLIGHT datasheet.)

# Technical Analysis of the ELM-1001EWA Optoelectronic Component

## Practical Application Scenarios

The ELM-1001EWA, manufactured by EVERLIGHT, is an optoelectronic component designed for high-performance sensing and signaling applications. Its primary use cases include:

1. Industrial Automation – The component is widely used in proximity sensors and object detection systems due to its high sensitivity and fast response time. It is particularly effective in assembly line automation, where precise detection of small components is critical.

2. Consumer Electronics – In devices such as smartphones and wearables, the ELM-1001EWA serves as an ambient light sensor, enabling adaptive brightness control for displays. Its low power consumption makes it ideal for battery-operated applications.

3. Medical Equipment – The sensor’s reliability and accuracy support applications like pulse oximeters and diagnostic instruments, where consistent optical performance is essential.

4. Automotive Systems – Used in rain/light sensors for automatic wiper and headlight control, the ELM-1001EWA enhances driver safety by responding dynamically to environmental changes.

## Common Design-Phase Pitfalls and Avoidance Strategies

1. Optical Interference – Ambient light or stray reflections can distort sensor readings.

• Mitigation: Implement proper shielding (e.g., light baffles) and use optical filters to block unwanted wavelengths.

2. Incorrect Circuit Integration – Mismatched drive currents or improper biasing can degrade performance.

• Mitigation: Follow the manufacturer’s datasheet specifications for forward current and voltage to ensure optimal operation.

3. Thermal Drift – Temperature variations can affect sensitivity and response time.

• Mitigation: Incorporate temperature compensation algorithms or select a sensor variant with built-in thermal stability.

4. Signal Noise in High-Sensitivity Applications – Electrical noise can interfere with weak optical signals.

• Mitigation: Use low-noise amplifiers and ensure proper PCB grounding techniques.

## Key Technical Considerations for Implementation

1. Spectral Response – Verify that the sensor’s wavelength sensitivity aligns with the application (e.g., infrared vs. visible light).

2. Power Requirements – Optimize supply voltage and current to balance performance and energy efficiency.

3. Mechanical Placement – Position the sensor to minimize obstructions and maximize exposure to the target signal source.

4. Environmental Robustness – For harsh environments, ensure the component meets required ingress protection (IP) ratings or is housed appropriately.

By addressing these factors, engineers can maximize the ELM-1001EWA’s performance while avoiding common implementation challenges.