Optical Sensors & Detector – UV Photodiodes
UVC Photodiode – SG01M-C5UVC
Medium-Area UVC Photodiode for Reliable Industrial, Medical, Environmental, Aerospace, and Scientific Germicidal Monitoring Applications
The SG01M-C5UVC is a Silicon Carbide (SiC)-based photodiode designed for selective detection of germicidal UVC radiation within the 220–280 nm range. With a 0.2 mm² active area, it provides stronger photocurrents than compact photodiodes, ensuring enhanced sensitivity while remaining integration-friendly. Delivering peak responsivity of 0.10 A/W at 265 nm, it is ideal for UVC sterilisation, disinfection validation, and UVC LED monitoring. Featuring ultra-low dark current (0.1 fA) and capacitance of 20 pF, the SG01M-C5UVC ensures noise-free signals and fast response times for real-time applications. Its complete visible blindness eliminates interference from visible and infrared radiation, guaranteeing accurate UVC-only measurements. Built for durability, it performs reliably across −55 °C to +170 °C, making it suitable for harsh industrial, medical, and aerospace environments. Applications include lamp monitoring, purification systems, safety compliance, and scientific photonics research. The SG01M-C5UVC combines medium-area sensitivity, UVC selectivity, and robust design for mission-critical germicidal monitoring.
Understanding UVC Photodiode - SG01M-C5UVC
The SG01M-C5UVC is a medium-area UVC photodiode designed for germicidal detection between 220–280 nm, with peak sensitivity at 265 nm. Its 0.2 mm² active area provides stronger photocurrents than compact detectors, improving measurement accuracy in sterilisation and UVC LED validation. Constructed from Silicon Carbide, it ensures complete visible blindness, enabling pure UVC-only detection without interference. Ultra-low dark current (0.1 fA) and capacitance of 20 pF provide stable, noise-free signals and fast responsiveness, making it suitable for real-time monitoring. Operating from −55 °C to +170 °C, the SG01M-C5UVC offers rugged, long-term reliability across industrial, medical, aerospace, and scientific applications.
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-C5UVC is optimised for germicidal UVC radiation (220–280 nm), with peak responsivity at 265 nm, ensuring accurate detection for sterilisation and disinfection monitoring.
Medium Active Area for Higher Sensitivity
Its 0.2 mm² active area delivers stronger photocurrents compared to compact detectors, making it effective in low-intensity UVC environments.
Pure UVC Detection
Constructed with Silicon Carbide, it provides complete visible blindness, eliminating interference from visible and IR light for true UVC-only detection.
Noise-Free and Stable Operation
With ultra-low dark current (0.1 fA), the photodiode guarantees clean, stable, and noise-free signal outputs.
Fast Responsiveness
Capacitance of 20 pF enables quick response times, making it suitable for real-time sterilisation validation and safety monitoring systems.
Rugged Thermal Reliability
Operating from −55 °C to +170 °C, it is dependable under harsh aerospace, defence, and industrial conditions.
Long-Term Stability
SiC construction ensures resistance to UVC degradation, supporting stable calibration and reducing maintenance requirements over long-term operation.
The SG01M-C5UVC combines medium-area design, selective UVC responsivity, and rugged stability, making it a dependable detector for mission-critical germicidal monitoring.
Applications Across Industries
Medical and Healthcare
The SG01M-C5UVC is used in hospital sterilisation validation, phototherapy calibration, and UVC dosimetry, ensuring safe germicidal radiation exposure.
Industrial Applications
It validates UVC LED and lamp performance in sterilisation systems used in cleanrooms, food packaging, and pharmaceutical processes.
Environmental Monitoring
The device supports water purification, air disinfection, and atmospheric UVC studies for safety and research.
Scientific Research
Researchers use the SG01M-C5UVC for optical characterisation of UVC sources, germicidal studies, and photonics experiments.
Aerospace and Defence
Its rugged build and thermal tolerance make it ideal for aerospace-grade UVC safety monitoring, flame detection, and defence applications.
Workplace and Safety Monitoring
Compact integration enables its use in occupational exposure meters and portable safety devices for UVC compliance.
By combining medium-area sensitivity, ruggedness, and selective UVC detection, the SG01M-C5UVC is a versatile sensor across industries.
Why Choose United Spectrum Instruments?
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Exclusive distributor of SGLUX UVC photodiodes in India
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Local inventory ensures shorter lead times and fast delivery
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Competitive pricing for healthcare, industrial, and research applications
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Expert consultation for seamless UVC monitoring integration
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Nationwide after-sales service, technical training, and support
FAQs
What spectral range does the SG01M-C5UVC detect?
It detects UVC wavelengths between 220–280 nm.
What is its active area size?
It has a 0.2 mm² active area for medium sensitivity.
Does it eliminate visible and IR interference?
Yes, it ensures complete visible blindness for accurate UVC detection.
Can it withstand extreme environments?
Yes, it operates reliably from −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By offering local stock, competitive pricing, expert guidance, and pan-India technical service.
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FAQs
What spectral range does the SG01M-C5UVC detect?
It detects UVC wavelengths between 220–280 nm.
What is its active area size?
It has a 0.2 mm² active area for medium sensitivity.
Does it eliminate visible and IR interference?
Yes, it ensures complete visible blindness for accurate UVC detection.
Can it withstand extreme environments?
Yes, it operates reliably from −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By offering local stock, competitive pricing, expert guidance, and pan-India technical service.
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