LED THT EOLD-285-012
High Precision UV-C Source for Disinfection and Analytical Systems – 285nm UV LED EOLD-285-012
The EOLD-285-012 is a high-performance 285 nm UV-C LED developed for advanced sterilisation, sensing, and analytical applications. Manufactured by EPIGAP OSA Photonics, this ultraviolet emitter delivers stable and reliable UV output for demanding industrial and scientific environments. Housed in a rugged TO-46 metal package with an integrated lens, the LED provides excellent thermal stability, durability, and long operational life. Operating within the UV-C wavelength range, it offers effective microbial inactivation along with precise optical performance for a wide range of industrial and laboratory applications. United Spectrum Instruments is the authorised distributor of EPIGAP OSA Photonics products in India.
Designed for applications requiring focused and controlled ultraviolet radiation, the EOLD-285-012 is widely used in sterilisation systems, fluorescence analysis, environmental sensing, and optical detection equipment. Its integrated lens design enables concentrated UV-C illumination, improving optical accuracy and enhancing performance in targeted exposure applications. The 285 nm wavelength effectively supports the elimination of bacteria, viruses, and other harmful microorganisms, making it suitable for healthcare, laboratory, and industrial disinfection systems. The stable optical output also ensures reliable operation in analytical instruments and precision sensing applications.
Understanding LED THT EOLD-285-012
The EOLD-285-012 operates at 285 nm in the UV-C spectrum, offering a balance between germicidal efficiency and material compatibility. It is designed for stable low-current operation (~20 mA) and delivers consistent optical output for precision applications. Like other UV THT LEDs in the EPIGAP portfolio, it features a lens-based narrow beam design, enabling focused UV radiation for targeted exposure. Its TO-46 hermetic package ensures excellent thermal stability and environmental protection, making it suitable for continuous operation in industrial and scientific environments.
Technical Specifications
| Parameter | Specification |
| Product | EOLD-285-012 |
| Type | UV-C LED |
| Peak Wavelength | 285 nm |
| Optical Output Power | ~1–2 mW (typical class) |
| Forward Current | ~20 mA |
| Forward Voltage | ~5 – 6 V |
| Spectral Width (FWHM) | ~10–12 nm |
| Viewing Angle | Narrow beam (~6° typical) |
| Package | TO-46 Metal Can (Lens) |
| Mounting Type | Through-hole |
| Operating Temperature | -20°C to +85°C |
| Compliance | RoHS & REACH compliant |
Key Features and Advantages
UV-C Wavelength for Reliable Disinfection
Operating at 285 nm, the LED provides effective germicidal performance, suitable for disinfecting air, water, and surfaces in industrial and healthcare environments.
Focused Beam for Precision Applications
The lens-based design enables a narrow emission angle, allowing targeted UV exposure for analytical measurements and controlled sterilisation processes.
Stable Optical Output for Consistent Results
The LED delivers reliable and repeatable UV output, ensuring accuracy in sensing, fluorescence analysis, and inspection systems.
Robust TO-46 Hermetic Package
The metal TO-46 package offers excellent mechanical strength, thermal stability, and protection from environmental conditions, ensuring long-term durability.
Low Power Consumption
Operating at approximately 20 mA, the LED provides energy-efficient performance while maintaining stable UV emission.
Long Operational Lifetime
Designed for industrial-grade applications, the LED ensures consistent output over extended periods, reducing maintenance requirements.
High Environmental Resistance
The hermetic metal housing protects against humidity, temperature fluctuations, and chemical exposure, making it suitable for harsh environments.
Easy Integration into Systems
The through-hole configuration allows seamless integration into PCBs and optical assemblies, supporting both prototyping and production setups.
Applications Across Industries
Sterilisation & Disinfection Systems
The 285 nm UV-C wavelength is widely used for disinfecting air, water, and surfaces, providing reliable microbial inactivation across industrial and healthcare systems.
Medical & Healthcare Equipment
Used in sterilisation devices, diagnostic instruments, and laboratory systems requiring controlled UV exposure for hygiene and analysis.
Fluorescence & Chemical Analysis
Ideal for fluorescence excitation and chemical detection, enabling precise analysis of biological and chemical samples.
Environmental Monitoring Systems
Used in UV-based sensors for detecting pollutants and monitoring environmental conditions using absorption techniques.
Industrial Inspection & Material Testing
UV illumination helps identify contamination, defects, and material inconsistencies in quality control processes.
UV Curing & Photocatalysis
Suitable for UV curing processes such as bonding, coating, and printing, as well as photocatalytic reactions in industrial environments.
Research & Scientific Applications
Widely used in spectroscopy, photochemistry, and laboratory research requiring stable and focused UV light sources.
Why Choose United Spectrum Instruments?
United Spectrum Instruments is a trusted supplier of advanced photonics components in India. We provide expert consultation, product selection guidance, and integration support for UV LEDs like EOLD-285-012. 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 UV-based sterilisation, sensing, and analytical solutions tailored to their needs.
- Reliable support for gas sensing and proximity sensing applications
- Availability of TO-can, 3 mm, and 5 mm THT LED package options
- Support for custom wavelength and photonic assembly requirements
- Genuine products sourced directly from the manufacturer
- Fast quotation, technical response, and application assistance
- Experience supporting OEMs, research labs, and industrial automation companies
FAQs
What is the wavelength of EOLD-285-012?
It operates at 285 nm in the UV-C spectrum.
What is the typical optical output power?
It typically delivers around 1–2 mW optical output.
What is the beam angle?
It offers a narrow beam (~6° typical) for focused illumination.
What applications is it best suited for?
It is used in sterilisation, sensing, fluorescence analysis, and industrial inspection systems.
Is it suitable for industrial environments?
Yes, it operates from -20°C to +85°C and is designed for durable industrial use.
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FAQs
What is the wavelength of EOLD-285-012?
It operates at 285 nm in the UV-C spectrum.
What is the typical optical output power?
It typically delivers around 1–2 mW optical output.
What is the beam angle?
It offers a narrow beam (~6° typical) for focused illumination.
What applications is it best suited for?
It is used in sterilisation, sensing, fluorescence analysis, and industrial inspection systems.
Is it suitable for industrial environments?
Yes, it operates from -20°C to +85°C and is designed for durable industrial use.

