Optical Sensors & Detector – UV Photodiodes
UVC Photodiode – SG01L-C5DUVC
Extra-Large Area Dual-Band UVC Photodiode for Industrial, Medical, Aerospace, Environmental, and Scientific Monitoring Applications
The SG01L-C5DUVC is a Silicon Carbide (SiC)-based dual-band photodiode engineered for accurate detection of germicidal UVC radiation between 220–280 nm. With an extra-large 10.0 mm² active area, it provides very strong photocurrents, making it ideal for applications that demand high sensitivity across large exposure surfaces. The dual-band design enhances spectral selectivity, ensuring superior precision in UVC LED characterisation, lamp calibration, and sterilisation monitoring. Delivering peak responsivity of 0.10 A/W at 265 nm, the SG01L-C5DUVC combines ultra-low dark current (0.1 fA) with high capacitance (1000 pF) to provide noise-free, stable signals and reliable responsiveness. Built with SiC technology, it guarantees complete visible blindness, ensuring interference-free UVC-only detection. Rugged and durable, it operates across −55 °C to +170 °C, making it suitable for demanding applications in medical, industrial, aerospace, and scientific environments. The SG01L-C5DUVC represents a robust solution for mission-critical UVC monitoring.
Understanding UVC Photodiode - SG01L-C5DUVC
The SG01L-C5DUVC is a dual-band Silicon Carbide photodiode designed for large-area germicidal UVC monitoring in the 220–280 nm range. With its extra-large 10.0 mm² active area, it provides maximum photocurrent sensitivity, ideal for applications with wide-beam UVC exposure. The dual-band design enhances wavelength selectivity, making it effective for UVC LED calibration and sterilisation validation. With ultra-low dark current (0.1 fA) and capacitance of 1000 pF, it produces noise-free, stable, and responsive signals. Complete visible blindness ensures pure UVC detection without IR or visible interference. Rugged and reliable, it operates from −55 °C to +170 °C, ensuring long-term stability.
Technical Specifications
| Feature | Specification |
| Spectral Range (UVC Specific) | 220 … 280 nm |
| Peak Responsivity | 0.10 A/W at 265 nm |
| Visible Blindness | > 10¹⁰ |
| Active Area | 10.0 mm² |
| Dark Current (1 V reverse bias) | 0.1 fA |
| Capacitance | 1000 pF |
| Short Circuit (10 mW/cm² at peak) | 95 µA |
| Temperature Coefficient | < 0.1 %/K |
| Operating Temperature | −55 … +170 °C |
| Storage Temperature | −55 … +170 °C |
| Soldering Temperature (3 s) | 260 °C |
| Maximum Reverse Voltage | 20 V |
| Design |
Dual-band UVC detection
|
Key Features and Advantages
Dual-Band Detection for Enhanced Selectivity
The SG01L-C5DUVC is engineered with a dual-band design, providing superior spectral selectivity for accurate UVC monitoring. This feature is particularly important for distinguishing wavelengths during UVC LED characterisation and germicidal lamp calibration.
Extra-Large Active Area
Its 10.0 mm² active area ensures maximum photocurrent generation, making it effective for wide-beam exposure and environments where high sensitivity is critical.
UVC-Specific Responsivity
The photodiode is optimised for the germicidal range of 220–280 nm, with peak responsivity at 265 nm, enabling precision sterilisation and disinfection monitoring.
Noise-Free Signal Performance
Ultra-low dark current (0.1 fA) ensures clean, stable signals, essential for sensitive monitoring and scientific measurements.
Fast Response Capability
With a capacitance of 1000 pF, the device delivers responsive signals, supporting real-time safety monitoring and automated disinfection systems.
Complete Visible Blindness
Constructed from Silicon Carbide, the SG01L-C5DUVC rejects visible and IR light entirely, ensuring interference-free UVC detection.
Rugged Environmental Reliability
Operating from −55 °C to +170 °C, it is suitable for harsh industrial, aerospace, and defence conditions.
Durability and Longevity
Its SiC design resists UVC degradation, ensuring long-term stability and calibration accuracy even under continuous exposure.
By combining dual-band spectral precision, extra-large sensitivity, and rugged durability, the SG01L-C5DUVC is an ideal solution for critical UVC monitoring applications.
Applications Across Industries
Medical and Healthcare
The SG01L-C5DUVC ensures precise sterilisation monitoring in hospitals, laboratories, and medical equipment disinfection systems.
Industrial Sterilisation
It validates high-power UVC LED and lamp-based disinfection systems used in pharmaceuticals, packaging, and cleanrooms.
Environmental Monitoring
The photodiode supports UVC-based air sterilisation, water purification, and environmental exposure studies for compliance with safety standards.
Scientific Research
Researchers employ it for wavelength-specific UVC LED analysis, germicidal lamp calibration, and advanced photonics research.
Aerospace and Defence
Its rugged build and wide thermal range make it a reliable choice for aerospace-grade UVC safety monitoring systems.
Workplace and Public Safety
Integrated into UVC exposure meters and safety devices, it ensures workplace compliance with germicidal exposure regulations.
By offering dual-band precision, large-area sensitivity, and rugged reliability, the SG01L-C5DUVC is a trusted photodiode across multiple industries.
Why Choose United Spectrum Instruments?
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Exclusive distributor of SGLUX UVC photodiodes in India
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Local stock ensures faster delivery and reduced lead times
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Competitive pricing across healthcare, industrial, and research markets
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Expert consultation for UVC monitoring and system integration
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Nationwide after-sales service, technical support, and training
FAQs
What spectral range does the SG01L-C5DUVC detect?
It covers UVC radiation from 220–280 nm.
What is unique about its dual-band design?
It enhances selectivity and accuracy for UVC LED characterisation and germicidal monitoring.
How large is its active area?
It has an extra-large 10.0 mm² active area for strong photocurrents.
Can it operate in harsh environments?
Yes, it functions reliably from −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By offering local stock, quick delivery, expert consultation, and nationwide after-sales service.
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FAQs
What spectral range does the SG01L-C5DUVC detect?
It covers UVC radiation from 220–280 nm.
What is unique about its dual-band design?
It enhances selectivity and accuracy for UVC LED characterisation and germicidal monitoring.
How large is its active area?
It has an extra-large 10.0 mm² active area for strong photocurrents.
Can it operate in harsh environments?
Yes, it functions reliably from −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By offering local stock, quick delivery, expert consultation, and nationwide after-sales service.
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