LD274

LD274 GaAs Infrared Emitting Diode Technical Summary

Overview

The LD274 is a high-performance GaAs (Gallium Arsenide) infrared emitting diode designed for applications requiring precise infrared light emission with a narrow beam angle. This component is engineered to deliver reliable performance across a wide operating temperature range, making it suitable for both industrial and commercial applications. The LD274's compact design and robust construction ensure durability in various environmental conditions.

With its GaAs material composition, the LD274 offers efficient infrared emission, making it ideal for use in optical sensors, remote control systems, and other infrared-based communication devices. The diode operates at a low forward voltage, ensuring energy efficiency while maintaining high output performance.

Features

• Extremely Narrow Half Angle: Provides focused infrared emission for precise targeting in applications such as optical sensing and communication.
• GaAs Material: Fabricated using Gallium Arsenide for efficient infrared light emission and high reliability.
• Wide Operating Temperature Range: Operates reliably from -55°C to +100°C, suitable for harsh environments.
• Low Forward Voltage: Ensures energy-efficient operation with minimal power consumption.
• High Reverse Voltage: Supports up to 5V reverse voltage, enhancing durability in circuit applications.
• High Forward Current: Capable of handling up to 100mA forward current for robust performance.

Applications

The LD274 is versatile and finds use in a variety of infrared-based applications, including:

• Optical Sensors: Used in proximity sensors, object detection, and line-following robots.
• Remote Control Systems: Ideal for infrared remote controls for consumer electronics like TVs and air conditioners.
• Communication Devices: Employed in infrared data transmission systems, such as IrDA modules.
• Industrial Automation: Integrated into machinery for non-contact sensing and positioning.
• Security Systems: Used in infrared beam barriers and motion detection systems.

Electrical Characteristics

The following table summarizes the key electrical characteristics of the LD274:

• Operating and Storage Temperature Range (Top; Tstg): -55°C to +100°C
• Junction Temperature (Tj): 100°C (maximum)
• Reverse Voltage (VR): 5V
• Forward Current (IF): 100mA
• Forward Voltage (VF): Typically 1.2V at 20mA (exact value depends on operating conditions)
• Peak Wavelength (λp): Typically 940nm (may vary slightly based on batch and operating conditions)

Package Information

The LD274 is available in a compact, industry-standard package designed for easy integration into various circuit designs. Key package details include:

• Package Type: Radial-leaded package with a clear or diffused lens, depending on the variant.
• Dimensions: Standard 3mm or 5mm diameter package (exact dimensions depend on the specific model).
• Lead Material: Tin-plated leads for excellent solderability and corrosion resistance.
• Lens Options: Clear lens for focused emission or diffused lens for wider coverage, depending on application requirements.
• Mounting: Suitable for through-hole PCB mounting with standard soldering techniques.

Reliability and Testing

The LD274 undergoes rigorous testing to ensure long-term reliability and performance consistency. Key testing procedures include:

• Temperature Cycling: Exposed to repeated cycles of extreme temperatures to verify stability.
• Forward Current Stress Testing: Operated at maximum forward current to assess durability under high-load conditions.
• ESD Testing: Evaluated for electrostatic discharge resistance to ensure robustness in real-world applications.
• Optical Output Verification: Tested for consistent infrared output across the specified wavelength range.

Handling and Storage Recommendations

To maintain the performance and longevity of the LD274, adhere to the following guidelines:

• ESD Precautions: Handle with anti-static measures to prevent damage from electrostatic discharge.
• Storage Conditions: Store in a dry environment at temperatures within the specified storage range (-55°C to +100°C).
• Soldering: Use standard soldering techniques, avoiding excessive heat to prevent damage to the diode.
• Cleaning: Avoid using harsh chemicals that may degrade the lens or leads.

Conclusion

The LD274 GaAs infrared emitting diode is a high-reliability component designed for precision infrared applications. Its narrow beam angle, wide operating temperature range, and robust electrical characteristics make it an excellent choice for optical sensing, remote control, and communication systems. With its compact package and industry-standard design, the LD274 is easy to integrate into a wide range of electronic devices, delivering consistent performance in demanding environments.