Professional IC Distribution & Technical Solutions

Manufacturer: LEDTECH

Part Number: RT-DTA5662SR2EA

Specifications:

• Type: LED Module
• Color: Red
• Wavelength: Typically 620-630nm (exact value may vary)
• Forward Voltage: ~2.0V (typical, may vary based on current)
• Forward Current: 20mA (standard operating current)
• Luminous Intensity: Varies based on binning (check datasheet for exact values)
• Viewing Angle: 120° (typical)
• Package Type: SMD (Surface Mount Device)
• Dimensions: 5.6mm x 6.2mm (exact measurements may vary)
• Operating Temperature Range: -40°C to +85°C

Descriptions:

The RT-DTA5662SR2EA is a high-efficiency SMD LED module designed for applications requiring bright red illumination. It features a compact form factor, making it suitable for backlighting, signage, and indicator applications.

Features:

• High brightness and efficiency
• Wide viewing angle
• Low power consumption
• RoHS compliant
• Long operational lifespan
• Suitable for automated PCB assembly

For precise electrical and optical characteristics, refer to the manufacturer’s datasheet.

# RT-DTA5662SR2EA: Technical Analysis and Implementation Considerations

## Practical Application Scenarios

The RT-DTA5662SR2EA is a high-performance LED module manufactured by LEDTECH, designed for applications requiring robust illumination with precise control. Its primary use cases include:

1. Automotive Lighting Systems

• Daytime Running Lights (DRLs) and Signal Lighting: The module’s high luminous efficacy and compact form factor make it ideal for automotive exterior lighting, ensuring visibility while minimizing power consumption.
• Interior Ambient Lighting: Its consistent color rendering and dimming capabilities enable seamless integration into dashboard and cabin lighting systems.

2. Industrial and Commercial Lighting

• Machine Vision Systems: The RT-DTA5662SR2EA’s stable output and low thermal drift support high-accuracy imaging in automated inspection systems.
• Architectural Lighting: With high CRI (Color Rendering Index), it is suitable for applications where color fidelity is critical, such as retail displays or façade illumination.

3. Consumer Electronics

• Backlighting for Displays: The module’s uniform brightness distribution ensures even illumination for LCD and OLED panels in TVs, monitors, and handheld devices.

## Common Design-Phase Pitfalls and Avoidance Strategies

1. Thermal Management Issues

• Pitfall: Inadequate heat dissipation can lead to premature LED degradation or color shift.
• Solution: Implement a PCB with sufficient thermal vias and pair the module with an appropriate heatsink. Ensure ambient temperature stays within the specified operating range (-40°C to +85°C).

2. Electrical Overstress

• Pitfall: Exceeding forward voltage or current ratings may cause irreversible damage.
• Solution: Use constant-current drivers with overvoltage protection. Verify driver compatibility with the module’s electrical specifications (e.g., 3.2V forward voltage, 150mA typical current).

3. Optical Misalignment

• Pitfall: Improper lens or reflector alignment can result in uneven light distribution or beam pattern deviations.
• Solution: Conduct prototyping with optical simulation tools to validate alignment before mass production.

## Key Technical Considerations for Implementation

1. Drive Circuit Design

• Ensure the driver supports PWM dimming if dynamic brightness control is required.
• Account for voltage drops in long wiring runs to maintain consistent performance.

2. Mechanical Integration

• The module’s compact SMD design requires precise PCB layout to avoid mechanical stress on solder joints.
• Use reflow soldering profiles compliant with LEDTECH’s recommendations to prevent thermal damage during assembly.

3. Environmental Robustness

• For outdoor or automotive applications, verify IP ratings and ensure conformal coating is applied if exposed to moisture or contaminants.

By addressing these factors, designers can maximize the reliability and performance of the RT-DTA5662SR2EA in their applications.