The Everlight Electronics EL3120 is a high-performance infrared (IR) emitter designed for various applications, including remote control systems, optical communication, and other infrared transmission needs. This component is part of Everlight%27s extensive range of optoelectronic devices, known for their reliability, efficiency, and versatility. Below is a detailed overview of the EL3120, including its specifications, features, and potential applications.

## Overview

The EL3120 is a compact, high-efficiency infrared LED that emits light in the infrared spectrum, typically around 940 nm. This wavelength is commonly used in remote control applications and other systems that require invisible light transmission. The device is designed to provide excellent performance in terms of output power and reliability, making it suitable for a wide range of electronic applications.

## Key Specifications

1. Wavelength:
- Peak Emission Wavelength: 940 nm, which is ideal for most infrared applications, including remote controls and optical data transmission.

2. Forward Voltage:
- Typical Forward Voltage (V_f): Approximately 1.2V to 1.5V at a forward current of 20 mA. This low forward voltage ensures efficient operation and minimal power consumption.

3. Forward Current:
- Recommended Forward Current: 20 mA, which provides optimal performance in terms of light output and efficiency.

4. Radiant Intensity:
- Typical Radiant Intensity (I_e): Approximately 20 mW/sr at 20 mA, indicating the amount of infrared light emitted in a specific direction.

5. Viewing Angle:
- Half-Intensity Angle: Typically around 30 degrees, which defines the angle at which the emitted light intensity falls to half of its maximum value. This characteristic is important for determining the effective range of the emitter.

6. Package Type:
- The EL3120 is available in a compact, surface-mount package, which facilitates easy integration into various electronic designs and helps save space on printed circuit boards (PCBs).

7. Operating Temperature Range:
- Storage Temperature: -40°C to +85°C, ensuring reliability in various environmental conditions.
- Operating Temperature: -40°C to +85°C, making it suitable for both consumer and industrial applications.

8. Life Expectancy:
- The EL3120 is designed for a long operational life, typically exceeding 100,000 hours under normal operating conditions, which reduces the need for frequent replacements.

## Features

- High Efficiency: The EL3120 is designed to provide high radiant intensity with low power consumption, making it an energy-efficient choice for various applications.

- Compact Design: The small form factor of the device allows for easy integration into space-constrained designs, making it suitable for modern electronic devices.

- Reliability: Built with high-quality materials and manufacturing processes, the EL3120 offers excellent reliability and performance over its lifespan.

- Versatile Applications: The device can be used in a wide range of applications, from consumer electronics to industrial systems, due to its robust performance characteristics.

## Applications

The Everlight EL3120 is suitable for a variety of applications, including:

- Remote Control Systems: Commonly used in remote controls for televisions, air conditioners, and other consumer electronics, where infrared communication is essential.

- Optical Communication: Employed in optical data transmission systems, where infrared light is used to transmit data wirelessly.

- Proximity Sensors: Utilized in devices that require proximity detection, such as automatic doors and security systems.

- Consumer Electronics: Found in various electronic devices that require infrared signaling, including gaming consoles and smart home devices.

- Industrial Automation: Used in industrial applications for machine-to-machine communication and control systems.

## Conclusion

The Everlight Electronics EL3120 is a high-performance infrared emitter that offers a combination of efficiency, reliability, and versatility. With its optimal wavelength, compact design, and long operational life, it is an excellent choice for a wide range of applications, including remote control systems, optical communication, and industrial automation. As the demand for infrared communication continues to grow, the EL3120 stands out as a reliable solution for engineers and designers looking to implement effective infrared transmission in their products.