LED THT EOLD-1650-095-1
High Precision SWIR Source for Sensing and Industrial Systems – 1650nm IR LED EOLD-1650-095-1
The EOLD-1650-095-1 is a high-performance 1650 nm short-wave infrared (SWIR) LED engineered for advanced sensing, spectroscopy, and industrial applications. Developed by EPIGAP OSA Photonics, this infrared emitter delivers stable and reliable optical output for demanding scientific and industrial environments. Housed in a rugged TO-46 metal package with a flat window, the LED provides excellent durability, thermal stability, and long operational life. Operating within the deeper SWIR spectrum, it ensures accurate and consistent infrared illumination for applications requiring dependable optical performance. United Spectrum Instruments is the authorised distributor of EPIGAP OSA Photonics products in India.
Designed for advanced sensing and analytical systems, the EOLD-1650-095-1 is widely used in gas sensing, environmental monitoring, spectroscopy, and optical measurement applications. Its wide emission profile enables uniform infrared coverage, improving detection efficiency and enhancing measurement reliability in laboratory and industrial environments. The flat window design supports efficient light distribution, making it suitable for compact sensing systems and specialised optical equipment requiring stable SWIR illumination. Its stable radiant output ensures dependable operation in continuous-use monitoring and automation applications.
The compact and durable construction of the EOLD-1650-095-1 allows seamless integration into industrial automation systems, laboratory instruments, and advanced sensing equipment. Its TO-46 metal housing supports efficient heat dissipation, helping maintain stable optical performance during prolonged operation. Combining wide-angle SWIR illumination, rugged packaging, and dependable long-term performance, the EOLD-1650-095-1 provides an excellent solution for applications requiring precise, stable, and high-quality infrared light sources.
Understanding LED THT EOLD-1650-095-1
The EOLD-1650-095-1 operates at a peak wavelength of 1650 nm (1620–1680 nm range), making it highly effective for absorption-based sensing, especially for gases and organic compounds. It delivers typical radiant output around ~5 mW at 100 mA, ensuring stable and reliable signal performance.
Unlike lens-based narrow emitters, this LED features a wide viewing angle of ~100°, enabled by its flat window design, allowing uniform illumination across larger sensing areas.
Its hermetic TO-46 package ensures excellent thermal stability and environmental protection for continuous industrial and scientific operation.
Technical Specifications
| Parameter | Specification |
| Product | EOLD-1650-095-1 |
| Type | SWIR Infrared LED |
| Peak Wavelength | 1650 nm (1620–1680 nm) |
| Optical Output Power | ~5 mW |
| Forward Current | Up to 100 mA |
| Forward Voltage | ~1.25 – 1.8 V |
| Spectral Width (FWHM) | ~130 nm |
| Viewing Angle | ~100° |
| Package | TO-46 Metal Can (Flat Window) |
| Mounting Type | Through-hole |
| Operating Temperature | -40°C to +85°C |
| Compliance | RoHS & REACH compliant |
Key Features and Advantages
1650 nm SWIR Wavelength for Gas & Chemical Detection
Operating at 1650 nm, the LED aligns with strong absorption bands of gases and hydrocarbons, making it ideal for environmental monitoring and industrial sensing.
Wide Beam Angle for Uniform Illumination
With a ~100° viewing angle, the flat window design ensures broad and even infrared distribution, enabling large-area sensing and inspection systems.
Stable Radiant Output for Reliable Measurements
Delivering approximately ~5 mW radiant power, the LED provides consistent signal strength, improving accuracy in spectroscopy and sensing applications.
Flat Window Design for Diffused Emission
Unlike lens-based LEDs, the flat window ensures uniform light dispersion, making it suitable for proximity sensing, gas detection, and optical monitoring systems.
Optimised for Absorption-Based Sensing
The 1650 nm wavelength is particularly effective for detecting gases such as methane and other hydrocarbons, enabling precise measurement in industrial environments.
Robust TO-46 Hermetic Package
The metal housing provides excellent mechanical strength, thermal stability, and environmental protection, ensuring long-term durability.
Efficient Thermal Management
The TO-can design allows effective heat dissipation, ensuring stable performance even under continuous operation at higher drive currents.
Industrial-Grade Reliability
Designed for demanding environments, the LED offers long operational life and dependable performance, reducing downtime and maintenance costs.
Easy Integration into Systems
The through-hole configuration supports seamless integration into PCBs and optical assemblies for both prototyping and high-volume production.
Applications Across Industries
Gas Sensing & Environmental Monitoring
The 1650 nm wavelength is widely used in infrared absorption-based gas detection systems, enabling accurate monitoring of methane and other gases in industrial and environmental applications.
Spectroscopy & Optical Analysis
Ideal for spectroscopy systems where SWIR wavelengths enable precise chemical identification and material characterisation.
Industrial Process Monitoring
Used in manufacturing environments for real-time monitoring of gases, emissions, and process parameters.
Biomedical & Medical Applications
Applied in diagnostic systems and optical sensing technologies, where SWIR wavelengths enable deeper tissue interaction and non-invasive analysis.
Safety & Hazard Detection Systems
Supports detection of hazardous gases in industrial plants, improving workplace safety and compliance.
Proximity & Motion Sensing
Wide-angle infrared emission enables reliable proximity sensing across larger areas in automation systems.
Research & Scientific Applications
Widely used in photonics research, experimental setups, and optical testing systems requiring stable and uniform SWIR light sources.
Why Choose United Spectrum Instruments?
United Spectrum Instruments is a trusted distributor of advanced photonics components in India. We provide expert consultation, product selection guidance, and integration support for infrared LEDs like the EOLD-1650-095-1. With strong technical expertise and responsive after-sales service, we ensure reliable sourcing and long-term performance. Our commitment to quality and customer success enables industries to implement efficient sensing, automation, and analytical solutions tailored to their specific application requirements.
- Professional consultation for custom optoelectronic applications
- High-performance LEDs suitable for automation and machine vision systems
- Quick coordination with manufacturer for technical documentation and compliance
- Availability of LEDs for harsh industrial and research environments
FAQs
What is the wavelength of EOLD-1650-095-1?
It operates at approximately 1650 nm in the SWIR spectrum.
What is the viewing angle?
It offers a wide beam angle of around 100° for uniform illumination.
What is the optical output power?
It provides approximately 5 mW radiant output at 100 mA.
What applications is it best suited for?
It is used in gas sensing, spectroscopy, environmental monitoring, and industrial automation systems.
Is it suitable for industrial environments?
Yes, it operates from -40°C to +85°C and is designed for reliable industrial use.
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FAQs
What is the wavelength of EOLD-1650-095-1?
It operates at approximately 1650 nm in the SWIR spectrum.
What is the viewing angle?
It offers a wide beam angle of around 100° for uniform illumination.
What is the optical output power?
It provides approximately 5 mW radiant output at 100 mA.
What applications is it best suited for?
It is used in gas sensing, spectroscopy, environmental monitoring, and industrial automation systems.
Is it suitable for industrial environments?
Yes, it operates from -40°C to +85°C and is designed for reliable industrial use.
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