UVC Photodiode – SG01M-C18UVC
The SG01M-C18UVC is a medium-area Silicon Carbide (SiC)-based photodiode engineered for precise detection of germicidal UVC radiation in the 220–280 nm wavelength range....
UVC Photodiode – SG01M-C18UVC
Medium-Area UVC Photodiode for Industrial, Medical, Environmental, Aerospace, and Scientific Germicidal Monitoring Applications
The SG01M-C18UVC is a medium-area Silicon Carbide (SiC)-based photodiode engineered for precise detection of germicidal UVC radiation in the 220–280 nm wavelength range. With a 0.2 mm² active area, it provides stronger photocurrents than compact detectors, making it suitable for systems requiring higher sensitivity while maintaining easy integration. Optimised for UVC applications, the SG01M-C18UVC delivers peak responsivity of 0.10 A/W at 265 nm, ideal for sterilisation and disinfection monitoring. Its ultra-low dark current (0.1 fA) and 20 pF capacitance ensure noise-free operation and fast response times, supporting real-time monitoring and validation. Built on robust SiC technology, it guarantees complete visible blindness, providing interference-free UVC-only detection. Operating reliably across −55 °C to +170 °C, the SG01M-C18UVC is highly durable in industrial, medical, aerospace, and research environments. Typical applications include UVC LED monitoring, germicidal lamp validation, water and air purification, and environmental and photonics research.
Understanding
The SG01M-C18UVC is a UVC-specific photodiode designed for germicidal monitoring in the 220–280 nm range, with peak responsivity at 265 nm. Its medium 0.2 mm² active area offers higher sensitivity and stronger photocurrents than compact photodiodes, making it suitable for demanding applications requiring reliable precision. Constructed with Silicon Carbide, it achieves complete visible blindness, ensuring pure UVC detection without interference. Featuring ultra-low dark current (0.1 fA) and capacitance of 20 pF, it provides stable, noise-free signals and rapid response. With operational stability across −55 °C to +170 °C, the SG01M-C18UVC delivers long-term durability for industrial, medical, environmental, and research use.
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 | 0.2 mm² |
| Dark Current (1 V reverse bias) | 0.1 fA |
| Capacitance | 20 pF |
| Short Circuit (10 mW/cm² at peak) | 1.9 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 |
Key Features and Advantages
UVC-Specific Responsivity
The SG01M-C18UVC is optimised for the germicidal UVC band (220–280 nm), offering peak sensitivity at 265 nm, ideal for sterilisation and disinfection monitoring.
Medium Active Area for Higher Sensitivity
Its 0.2 mm² active area provides stronger photocurrents than compact detectors, making it effective in low-intensity UVC environments or wide-beam exposure systems.
High Signal Purity
Built with Silicon Carbide, it ensures complete visible blindness, eliminating interference from visible and infrared light for pure UVC detection.
Noise-Free and Stable Performance
With ultra-low dark current (0.1 fA), the photodiode delivers stable, noise-free signals suitable for sensitive UVC measurement setups.
Fast Response Capability
Capacitance of 20 pF enables quick response times, ensuring reliable real-time monitoring and safety validation in sterilisation systems.
Thermal Ruggedness
It operates reliably between −55 °C and +170 °C, making it suitable for industrial, aerospace, and defence-grade UVC applications.
Long-Term Stability
The SiC design resists UVC degradation, ensuring consistent calibration and long-term accuracy even under continuous exposure.
By combining medium-area sensitivity, compact design, and rugged durability, the SG01M-C18UVC is a reliable solution for mission-critical germicidal monitoring.
Applications Across Industries
Medical and Healthcare
The SG01M-C18UVC is used for UVC sterilisation validation, phototherapy calibration, and dosimetry to ensure safe germicidal exposure in healthcare.
Industrial Sterilisation
It validates UVC LED and lamp performance in cleanroom sterilisation, food packaging, and pharmaceutical disinfection systems.
Environmental Monitoring
The device supports water purification, air sterilisation, and environmental UVC radiation monitoring for research and safety compliance.
Scientific Research
Researchers utilise it for UVC optical characterisation, germicidal lamp studies, and photonics experiments requiring wavelength-specific detection.
Aerospace and Defence
Its rugged performance and wide thermal range make it suitable for UVC detection in aerospace-grade safety and flame monitoring.
Workplace and Safety Systems
Compact integration allows its use in portable safety meters and occupational monitoring systems for UVC exposure regulation.
By offering selective UVC detection, medium-area sensitivity, and robust construction, the SG01M-C18UVC is a trusted detector across multiple industries.
Why Choose United Spectrum Instruments?
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Authorised distributor of SGLUX UVC photodiodes in India
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Local stock ensures reduced lead times and quick delivery
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Competitive pricing for industry, academia, and defence sectors
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Application-specific consultation for UVC integration and monitoring systems
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Pan-India after-sales service, training, and technical support
FAQs
What spectral range does the SG01M-C18UVC detect?
It covers UVC wavelengths between 220–280 nm.
What is the active area size?
It features a 0.2 mm² active area for stronger sensitivity.
Does it block visible and infrared light?
Yes, it ensures complete visible blindness for pure UVC detection.
Can it be used in extreme environments?
Yes, it operates reliably from −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By offering fast delivery, competitive pricing, expert consultation, and nationwide after-sales service.
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FAQs
What spectral range does the SG01M-C18UVC detect?
It covers UVC wavelengths between 220–280 nm.
What is the active area size?
It features a 0.2 mm² active area for stronger sensitivity.
Does it block visible and infrared light?
Yes, it ensures complete visible blindness for pure UVC detection.
Can it be used in extreme environments?
Yes, it operates reliably from −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By offering fast delivery, competitive pricing, expert consultation, and nationwide after-sales service.
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