Everlight Electronics ELD217 Overview

The Everlight Electronics ELD217 is a high-performance infrared LED designed primarily for optical communications, sensors, and lighting applications. Featuring a compact, robust design, the ELD217 offers reliable and energy-efficient infrared emission, making it an ideal choice for a wide range of consumer, industrial, and commercial applications. With advanced wavelength and power output characteristics, it delivers consistent performance in various environments, including those requiring long-distance infrared transmission and high reliability.

Key Specifications

* Device Type: Infrared LED (Light Emitting Diode)
* Wavelength: 850 nm (typical)
* Viewing Angle: 30°
* Peak Emission: 850 nm
* Forward Voltage (Vf): 1.2 V (typical)
* Forward Current (If): 50 mA (max)
* Radiant Power: 40 mW (typical)
* Operating Temperature Range: -40°C to +85°C
* Storage Temperature Range: -40°C to +100°C
* Package Type: 5mm Radial Package
* Package Material: Transparent Resin
* Power Dissipation: 100 mW (max)
* Luminous Intensity (Iv): 15 mcd (typical at If = 50 mA)
* Lead Soldering Temperature: 260°C for 5 seconds
* RoHS Compliant: Yes
* Application Areas: Optical sensors, data transmission, remote controls, light curtains, and proximity sensors

Key Features

* 850 nm Wavelength: The 850 nm wavelength is commonly used in infrared data transmission and remote sensing. The ELD217’s wavelength ensures effective performance in various applications, such as infrared remote controls, optical communications, and proximity sensors. It is suitable for both indoor and outdoor applications where infrared light needs to pass through the atmosphere with minimal loss.

* Compact and Efficient Design: Housed in a 5mm radial package, the ELD217 is compact, which is ideal for space-constrained designs. The use of transparent resin for the package material provides excellent optical performance, ensuring that the emitted infrared light is efficiently transmitted with minimal scattering or distortion.

* High Luminous Intensity: The LED delivers a typical luminous intensity of 15 mcd at 50 mA forward current. This high intensity makes the device suitable for long-range infrared applications where a strong, focused beam is required to ensure reliable detection or communication.

* Energy-Efficient: Operating with a typical forward voltage of 1.2 V, the ELD217 is energy-efficient, making it ideal for use in battery-powered systems where power consumption is a critical factor. The relatively low forward voltage also minimizes heat dissipation, enhancing the longevity and reliability of the device.

* Wide Operating Temperature Range: With an operating temperature range of -40°C to +85°C, the ELD217 is designed to function reliably in a wide variety of environmental conditions. This temperature tolerance makes the LED suitable for use in both indoor and outdoor applications, including industrial environments and automotive systems where temperature extremes may occur.

* Reliability and Longevity: The ELD217 is built to last, offering high reliability for applications requiring consistent long-term performance. Its robustness ensures stable operation in environments subject to vibration, temperature fluctuations, and electrical stress, typical in industrial or transportation applications.

Applications

* Optical Sensors and Detectors: The 850 nm wavelength of the ELD217 makes it suitable for use in optical sensing applications such as position sensors, light curtains, and proximity sensors. Its high luminous intensity enables accurate detection over a distance, which is essential for detecting motion or the presence of objects in industrial automation systems, security systems, or robotics.

* Data Transmission and Communication: The infrared LED is widely used in data transmission systems, particularly in infrared communication technologies, where short-range communication is required. Common uses include remote controls, infrared data links, and wireless data transmission systems for consumer electronics, such as TV remotes and home appliances.

* Remote Control Systems: The ELD217 is an ideal solution for remote control applications due to its ability to generate a reliable, focused infrared beam. It is commonly used in TV remotes, air conditioning units, lighting systems, and other home electronics where infrared communication is required for controlling devices remotely.

* Automotive Applications: In the automotive sector, the ELD217 can be used in systems such as vehicle proximity sensors, parking assist sensors, and infrared cameras. The device’s high intensity and wide operating temperature range ensure that it performs reliably in automotive environments, where temperature fluctuations and vibration are common.

* Security and Surveillance Systems: The device is suitable for security applications, such as intruder detection systems and motion detection. It can be integrated into infrared light barriers or safety systems, where it helps in detecting the presence of objects or individuals in restricted areas, ensuring enhanced security for both industrial and residential spaces.

* Medical Equipment: In medical applications, infrared LEDs like the ELD217 can be used in medical sensors for pulse oximeters or infrared thermometers, where infrared light is used to measure blood oxygen levels or body temperature. Its precision and reliable output make it an ideal choice for these critical health monitoring devices.

Advantages

* Compact Form Factor: The 5mm radial package makes the ELD217 suitable for space-constrained designs, allowing for easy integration into a wide variety of electronic devices and systems. Its small size also enables more compact and efficient circuit board layouts, making it ideal for portable and embedded systems.

* High Reliability: Built with high-quality materials, the ELD217 offers excellent durability and reliability, even in environments subject to shock, vibration, and temperature variations. This makes it a trusted choice for use in industrial, automotive, and outdoor applications where equipment failure is not an option.

* Energy-Efficiency: The device’s low forward voltage ensures that it operates efficiently, drawing minimal power. This makes it suitable for use in battery-powered devices, sensors, and systems where power consumption is critical to extend the operating life of portable or remote equipment.

* Wide Range of Applications: The versatility of the ELD217, with its 850 nm wavelength and high luminous intensity, enables it to be used across a broad spectrum of industries, including consumer electronics, automotive, industrial automation, and medical applications. This wide applicability ensures that the LED is adaptable to a variety of needs and environments.

* Robust Packaging: The transparent resin packaging provides excellent protection for the internal components while maintaining optimal optical performance. This durability and resistance to environmental factors contribute to the long service life of the device in even the most demanding applications.

Conclusion

The Everlight Electronics ELD217 is a highly versatile infrared LED that provides high luminous intensity, reliable performance, and energy efficiency across a wide range of applications. Whether in optical sensors, data transmission systems, remote control devices, or automotive sensors, the ELD217 offers excellent performance with a wide operating temperature range and compact design. Its high reliability, energy efficiency, and adaptability make it an ideal choice for industrial, commercial, and consumer electronic applications, ensuring consistent and long-lasting performance.