LED THT EOLD-1900-095-1
The EOLD-1900-095-1 is a high-performance 1900 nm short-wave infrared (SWIR) LED engineered for advanced sensing, spectroscopy, and industrial monitoring applications. Designed by
LED THT EOLD-1900-095-1
High Precision SWIR Source for Moisture and Industrial Sensing Systems – 1900nm IR LED EOLD-1900-095-1
The EOLD-1900-095-1 is a high-performance 1900 nm short-wave infrared (SWIR) LED engineered for advanced sensing, spectroscopy, and industrial monitoring applications. Designed by EPIGAP OSA Photonics, this infrared emitter delivers stable and reliable optical output for demanding scientific and industrial environments. Housed in a durable TO-46 metal package with a flat window, the LED provides excellent durability, thermal stability, and long operational life. Operating within the deep 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-1900-095-1 is widely used in moisture detection, chemical analysis, gas sensing, and spectroscopy 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 industrial automation applications.
The compact and rugged construction of the EOLD-1900-095-1 allows seamless integration into laboratory instruments, industrial automation systems, 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, durable packaging, and dependable long-term performance, the EOLD-1900-095-1 provides an excellent solution for applications requiring precise, stable, and high-quality infrared light sources.
Understanding LED THT EOLD-1900-095-1
The EOLD-1900-095-1 operates at a peak wavelength of approximately 1900 nm, a region strongly associated with water and organic compound absorption, making it highly suitable for moisture analysis and spectroscopy. It supports forward currents up to 100 mA, ensuring stable optical output for continuous operation.
Unlike lens-based narrow emitters, this LED features a wide viewing angle (~100°) due to its flat window design, enabling uniform illumination across large sensing areas. Its hermetic TO-46 package provides excellent thermal stability and environmental protection, making it reliable for demanding industrial and scientific applications.
Technical Specifications
| Parameter | Specification |
| Product | EOLD-1900-095-1 |
| Type | SWIR Infrared LED |
| Peak Wavelength | ~1900 nm |
| Optical Output Power | ~2 – 4 mW (typical class) |
| Forward Current | Up to 100 mA |
| Forward Voltage | ~1.1 – 1.6 V |
| Spectral Width (FWHM) | ~120–130 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
1900 nm SWIR Wavelength for Moisture Detection
Operating at 1900 nm, the LED aligns with strong water absorption bands, making it ideal for moisture detection, chemical sensing, and material analysis.
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 Accurate Measurements
Delivering ~2–4 mW radiant power, the LED provides consistent signal strength, ensuring reliable performance in spectroscopy and sensing applications.
Flat Window Design for Diffused Emission
Unlike lens-based LEDs, the flat window enables uniform light dispersion, improving performance in proximity sensing, gas detection, and optical monitoring systems.
Optimised for Absorption-Based Analysis
The 1900 nm wavelength is highly effective for detecting water content and organic compounds, enabling precise measurement in industrial and laboratory environments.
Robust TO-46 Hermetic Package
The metal housing ensures excellent mechanical strength, thermal stability, and resistance to environmental factors, ensuring long-term durability.
Efficient Thermal Management
The TO-can design supports effective heat dissipation, allowing stable operation even 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 allows seamless integration into PCBs and optical assemblies, supporting both prototyping and high-volume production.
Applications Across Industries
Moisture Detection & Water Content Analysis
The 1900 nm wavelength is highly sensitive to water absorption, making it ideal for detecting moisture levels in food processing, pharmaceuticals, and industrial materials.
Gas Sensing & Environmental Monitoring
Used in infrared absorption-based gas detection systems for monitoring gases and organic compounds in industrial and environmental settings.
Spectroscopy & Chemical Analysis
Ideal for spectroscopy applications where deep SWIR wavelengths enable precise identification of chemical compounds and material composition.
Industrial Process Monitoring
Supports real-time monitoring of moisture, emissions, and process parameters in manufacturing industries.
Biomedical & Analytical Applications
Applied in diagnostic systems and optical sensing technologies where deep SWIR wavelengths enable advanced analysis.
Safety & Hazard Detection Systems
Used in industrial plants for detecting hazardous gases and monitoring environmental safety conditions.
Research & Scientific Applications
Widely used in photonics research, experimental setups, and optical testing systems requiring stable and uniform SWIR illumination.
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 SWIR LEDs like the EOLD-1900-095-1. 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.
- Assistance in choosing correct viewing angles and beam profiles
- Reliable support for spectroscopy and fluorescence-based applications
- Solutions suitable for environmental monitoring and gas analysis systems
- Strong understanding of photonics and semiconductor-based technologies
- Support for prototype development and pilot production requirements
- Access to advanced infrared and near-infrared THT emitters
FAQs
What is the wavelength of EOLD-1900-095-1?
It operates at approximately 1900 nm in the SWIR spectrum.
What is the viewing angle?
It offers a wide beam angle of ~100° for uniform illumination.
What is the optical output power?
It provides approximately 2–4 mW radiant output at standard operating conditions.
What applications is it best suited for?
It is widely used in moisture detection, spectroscopy, gas sensing, and industrial monitoring 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-1900-095-1?
It operates at approximately 1900 nm in the SWIR spectrum.
What is the viewing angle?
It offers a wide beam angle of ~100° for uniform illumination.
What is the optical output power?
It provides approximately 2–4 mW radiant output at standard operating conditions.
What applications is it best suited for?
It is widely used in moisture detection, spectroscopy, gas sensing, and industrial monitoring systems.
Is it suitable for industrial environments?
Yes, it operates from -40°C to +85°C and is designed for reliable industrial use.

