LED THT EOLD-308-012
High Precision UV-B Source for Analytical and Biomedical Systems – 308nm UV LED EOLD-308-012
The EOLD-308-012 is a high-performance 308 nm UV-B LED developed for advanced sensing, biomedical, and analytical applications. Manufactured by EPIGAP OSA Photonics, this ultraviolet emitter delivers stable and reliable optical output for demanding industrial and scientific environments. Housed in a rugged TO-46 metal package with an integrated lens, the LED offers excellent durability, thermal stability, and long operational life. Operating within the UV-B spectrum, it provides precise ultraviolet illumination suitable for applications requiring controlled and consistent UV performance. United Spectrum Instruments is the authorised distributor of EPIGAP OSA Photonics products in India.
Designed for precision-based optical applications, the EOLD-308-012 is widely used in fluorescence analysis, material inspection, laboratory instrumentation, and biomedical research systems. Its focused beam profile enables accurate UV illumination, improving measurement reliability and enhancing detection sensitivity in analytical and inspection processes. The integrated lens design supports efficient light concentration, making it suitable for compact optical systems and specialised research equipment. Its stable ultraviolet output ensures dependable performance in applications where consistent UV radiation is critical for accurate analysis and testing.
Understanding LED THT EOLD-308-012
The EOLD-308-012 operates at 308 nm, placing it in the UV-B region widely used for analytical and biomedical applications. It delivers approximately 2 mW optical output at a typical operating current of 20 mA, ensuring efficient and stable performance.
The LED features a narrow beam angle (~3°–6°) enabled by its lens design, providing highly focused UV radiation for precision applications.
Its hermetic TO-46 package ensures excellent thermal stability and environmental protection, making it ideal for continuous operation in industrial and scientific environments.
Technical Specifications
| Parameter | Specification |
| Product | EOLD-308-012 |
| Type | UV-B LED |
| Peak Wavelength | 308 nm |
| Optical Output Power | ~2 mW |
| Forward Current | ~20 mA |
| Forward Voltage | ~5.2 V |
| Spectral Width (FWHM) | ~13 nm |
| Viewing Angle | ~3° – 6° |
| Package | TO-46 Metal Can (Lens) |
| Mounting Type | Through-hole |
| Operating Temperature | -40°C to +85°C |
| Compliance | RoHS & REACH compliant |
Key Features and Advantages
UV-B Wavelength for Analytical Precision
Operating at 308 nm, the LED is ideal for applications requiring precise UV excitation, such as fluorescence analysis and biochemical sensing.
Focused Beam for High-Accuracy Applications
With a narrow emission angle (~3°–6°), the LED provides highly directional UV radiation, ensuring accurate targeting in sensing and inspection systems.
Stable Optical Output for Reliable Measurements
Delivering approximately 2 mW output, the LED ensures consistent and repeatable UV performance, essential for analytical and industrial applications.
Robust TO-46 Hermetic Package
The metal package provides excellent mechanical strength, thermal stability, and protection against environmental factors, ensuring long-term durability.
Efficient Thermal Performance
The TO-can design supports effective heat dissipation, enabling stable operation during continuous use.
Low Power Consumption
Operating at 20 mA typical current, the LED ensures energy-efficient performance while maintaining stable UV emission.
Industrial-Grade Reliability
Designed for demanding environments, the LED offers long operational life and consistent performance, reducing maintenance requirements.
Easy Integration into Systems
The through-hole configuration allows seamless integration into PCBs and optical assemblies, supporting both prototyping and production systems.
Applications Across Industries
Biomedical & Life Science Applications
The 308 nm UV-B wavelength is widely used in biomedical systems for fluorescence excitation, DNA analysis, and diagnostic instrumentation.
Analytical & Spectroscopy Systems
Ideal for spectroscopy and chemical analysis, enabling precise identification of materials and compounds.
Industrial Inspection & Material Testing
UV illumination helps detect surface defects, contamination, and material inconsistencies during quality control processes.
Environmental Monitoring Systems
Used in UV-based sensors for detecting pollutants and monitoring environmental conditions using absorption techniques.
Security & Authentication Systems
Supports forensic analysis, counterfeit detection, and authentication systems requiring UV illumination.
Medical Phototherapy Applications
The 308 nm wavelength is also used in specialised phototherapy treatments and dermatological applications.
Research & Scientific Applications
Widely used in laboratory experiments, photochemistry, and scientific 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-308-012. 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 sensing, biomedical, and analytical solutions tailored to their needs.
- Authorised Indian distributor for EPIGAP OSA Photonics THT LED solutions
- Access to premium German-engineered Through-Hole Technology (THT) LEDs
- Wide wavelength coverage from UV-C to SWIR applications
- Strong expertise in UV, VIS, IR, and SWIR THT LED technologies
- Technical guidance for sensing, illumination, and industrial integration
FAQs
What is the wavelength of EOLD-308-012?
It operates at 308 nm in the UV-B spectrum.
What is the optical output power?
The LED provides approximately 2 mW optical output.
What is the beam angle?
It offers a narrow beam angle of around 3°–6° for focused illumination.
What applications is it best suited for?
It is used in biomedical systems, spectroscopy, industrial inspection, and analytical applications.
Is it suitable for industrial environments?
Yes, it operates from -40°C to +85°C and is designed for durable industrial use.
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FAQs
What is the wavelength of EOLD-308-012?
It operates at 308 nm in the UV-B spectrum.
What is the optical output power?
The LED provides approximately 2 mW optical output.
What is the beam angle?
It offers a narrow beam angle of around 3°–6° for focused illumination.
What applications is it best suited for?
It is used in biomedical systems, spectroscopy, industrial inspection, and analytical applications.
Is it suitable for industrial environments?
Yes, it operates from -40°C to +85°C and is designed for durable industrial use.

