Optical Sensors & Detector – UV Photodiodes
UVC Photodiode – SG01M-C5DUVC
Medium-Area Dual-Band UVC Photodiode for Industrial, Medical, Environmental, Aerospace, and Scientific Applications
The SG01M-C5DUVC is a Silicon Carbide (SiC)-based dual-band UVC photodiode engineered for accurate monitoring of germicidal radiation in the 220–280 nm range. With a medium 0.2 mm² active area, it provides higher sensitivity and stronger photocurrents than compact detectors, while the dual-band design enhances spectral selectivity for UVC LEDs and lamp calibration. Delivering peak responsivity of 0.10 A/W at 265 nm, ultra-low dark current (0.1 fA), and capacitance of 20 pF, the SG01M-C5DUVC ensures noise-free, fast, and reliable performance for real-time monitoring systems. Its visible blindness guarantees interference-free UVC-only detection, making it suitable for sterilisation validation, disinfection control, and environmental UVC studies. Rugged and stable, it operates reliably across −55 °C to +170 °C, providing long-term durability in harsh conditions. Applications include medical sterilisation monitoring, industrial UVC validation, aerospace safety, scientific research, and workplace safety systems requiring precise UVC measurement.
Understanding UVC Photodiode - SG01M-C5DUVC
The SG01M-C5DUVC is a medium-area, dual-band photodiode tailored for selective UVC detection in the 220–280 nm range, with peak responsivity at 265 nm. Its 0.2 mm² active area ensures higher sensitivity and strong photocurrents for precision applications. The dual-band design improves measurement accuracy for UVC LED characterisation, lamp calibration, and sterilisation systems. Built on Silicon Carbide technology, it achieves complete visible blindness, ensuring UVC-only detection. With ultra-low dark current (0.1 fA) and capacitance of 20 pF, it provides noise-free signals and rapid responsiveness. Operating across −55 °C to +170 °C, it delivers stable performance for industrial, medical, aerospace, 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 |
| Design |
Dual-band UVC detection
|
Key Features and Advantages
Dual-Band UVC Selectivity
The SG01M-C5DUVC provides enhanced spectral selectivity, enabling precise UVC LED characterisation, germicidal lamp calibration, and disinfection system monitoring.
Medium Active Area for Stronger Photocurrents
With its 0.2 mm² active area, the photodiode delivers higher photocurrents and sensitivity, making it suitable for low-intensity UVC setups.
High Responsivity and Accuracy
It achieves peak responsivity of 0.10 A/W at 265 nm, ensuring accurate detection in sterilisation and disinfection applications.
Noise-Free Performance
An ultra-low dark current of 0.1 fA provides stable, noise-free outputs for sensitive UVC monitoring environments.
Fast Response Capability
With 20 pF capacitance, the device offers rapid responsiveness for real-time UVC safety validation and control systems.
Visible Blindness for Pure UVC Detection
Constructed from Silicon Carbide, it ensures interference-free detection by completely rejecting visible and infrared wavelengths.
Thermal Ruggedness
Operating across −55 °C to +170 °C, the SG01M-C5DUVC performs reliably in extreme aerospace, defence, and industrial environments.
Long-Term Stability
Resistant to UVC degradation, it maintains calibration accuracy and reliable operation over extended periods.
By combining dual-band technology, medium-area sensitivity, and rugged thermal performance, the SG01M-C5DUVC is an ideal photodiode for advanced germicidal monitoring applications.
Applications Across Industries
Medical and Healthcare
The SG01M-C5DUVC is applied in UVC sterilisation validation, disinfection devices, and phototherapy calibration systems.
Industrial Applications
It validates UVC sterilisation in pharmaceutical manufacturing, food packaging, and cleanroom processes where precise radiation measurement is essential.
Environmental Monitoring
The photodiode supports air sterilisation, water purification, and environmental studies requiring selective UVC-only detection.
Scientific Research
Researchers use it for UVC optical characterisation, germicidal lamp performance testing, and photonics experiments.
Aerospace and Defence
Its rugged design and dual-band selectivity make it suitable for aerospace-grade UVC monitoring, flame detection, and defence safety systems.
Workplace and Public Safety
The SG01M-C5DUVC integrates into occupational safety meters and portable monitoring devices to regulate UVC exposure in labs, hospitals, and factories.
By offering dual-band precision, medium-area sensitivity, and durable performance, the SG01M-C5DUVC is a versatile sensor across 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 fast delivery and shorter lead times
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Competitive pricing for healthcare, industrial, and research markets
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Application-specific consultation for UVC monitoring and integration
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Nationwide after-sales service, technical training, and expert support
FAQs
What spectral range does the SG01M-C5DUVC cover?
It detects UVC wavelengths between 220–280 nm.
What is unique about its dual-band design?
It improves selectivity for UVC LED monitoring and germicidal lamp calibration.
What is the active area size?
It has a medium 0.2 mm² active area for stronger sensitivity.
Can it operate in harsh conditions?
Yes, it performs reliably across −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By providing fast delivery, local stock, expert consultation, and nationwide after-sales support.
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FAQs
What spectral range does the SG01M-C5DUVC cover?
It detects UVC wavelengths between 220–280 nm.
What is unique about its dual-band design?
It improves selectivity for UVC LED monitoring and germicidal lamp calibration.
What is the active area size?
It has a medium 0.2 mm² active area for stronger sensitivity.
Can it operate in harsh conditions?
Yes, it performs reliably across −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By providing fast delivery, local stock, expert consultation, and nationwide after-sales support.
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