Optical Sensors & Detector – UV Photodiodes
UVC Photodiode – SG01XL-C5
Ultra-Large Area UVC Photodiode Delivering Maximum Sensitivity for Industrial, Medical, Environmental, Aerospace, and Scientific Applications
The SG01XL-C5 is an ultra-large area Silicon Carbide (SiC)-based UVC photodiode designed for highly sensitive germicidal monitoring within the 220–280 nm spectral range. With its massive 20.0 mm² active area, it delivers extremely strong photocurrents, ensuring maximum detection sensitivity across wide-beam and low-intensity UVC applications. The device achieves peak responsivity of 0.10 A/W at 265 nm while maintaining ultra-low dark current (0.1 fA) and 2000 pF capacitance, enabling stable, noise-free signal outputs with reliable responsiveness. Built on SiC technology, the SG01XL-C5 guarantees complete visible blindness, eliminating interference from visible and infrared light for precise UVC-only detection. Rugged and durable, it operates across −55 °C to +170 °C, making it suitable for harsh industrial, aerospace, and defence environments. The SG01XL-C5 is ideal for UVC sterilisation monitoring, LED and lamp calibration, air and water purification, environmental UVC monitoring, and advanced research applications.
Understanding UVC Photodiode - SG01XL-C5
The SG01XL-C5 is a Silicon Carbide photodiode designed with an ultra-large 20.0 mm² active area, providing unmatched photocurrent sensitivity for UVC detection between 220–280 nm. Its wide detection area ensures maximum light capture, making it especially effective for wide-beam disinfection systems and low-intensity UVC applications. With peak responsivity at 265 nm, ultra-low dark current (0.1 fA), and high capacitance (2000 pF), it produces stable, noise-free, and reliable signals. Silicon Carbide construction ensures complete visible blindness, allowing pure UVC-only detection without IR or visible interference. Rugged and thermally stable, it operates from −55 °C to +170 °C, ensuring long-term reliability in industrial and research-grade 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 | 20.0 mm² |
| Dark Current (1 V reverse bias) | 0.1 fA |
| Capacitance | 2000 pF |
| Short Circuit (10 mW/cm² at peak) | 190 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
Ultra-Large Active Area for Maximum Sensitivity
The SG01XL-C5 features an unmatched 20.0 mm² active area, producing exceptionally high photocurrents that enable superior sensitivity for large-beam UVC monitoring and low-intensity disinfection systems.
UVC-Specific Responsivity
Optimised for germicidal UVC radiation (220–280 nm), with peak responsivity at 265 nm, it ensures accurate sterilisation monitoring and precise LED/lamp characterisation.
Pure UVC Detection
Constructed with SiC technology, the SG01XL-C5 achieves complete visible blindness, eliminating interference from visible and IR light to ensure accurate UVC-only detection.
Noise-Free Signal Output
With an ultra-low dark current of 0.1 fA, the photodiode provides highly stable and clean signals critical for sensitive monitoring systems.
Responsive Performance
Despite its large area, its 2000 pF capacitance supports reliable responsiveness, making it effective for high-intensity and continuous-use environments.
Rugged Reliability
Operating across −55 °C to +170 °C, the device performs consistently in harsh industrial, aerospace, and defence applications.
Durability and Longevity
The SiC material resists UVC degradation, maintaining long-term calibration stability and operational dependability.
By combining ultra-large sensitivity, rugged stability, and precise UVC selectivity, the SG01XL-C5 is one of the most powerful photodiodes available for mission-critical germicidal monitoring.
Applications Across Industries
Medical and Healthcare
The SG01XL-C5 is ideal for sterilisation validation, UVC LED monitoring, and hospital disinfection systems requiring maximum sensitivity.
Industrial Sterilisation
It supports high-power UVC lamp and LED disinfection systems used in pharmaceutical, packaging, and cleanroom applications.
Environmental Monitoring
The device is used in water purification, air sterilisation, and atmospheric UVC radiation measurement systems.
Scientific Research
Researchers rely on the SG01XL-C5 for germicidal optical characterisation, calibration of UVC sources, and photonics experiments requiring high responsivity.
Aerospace and Defence
Its rugged build, thermal stability, and large-area sensitivity make it suitable for aerospace UVC safety monitoring and defence-grade safety applications.
Workplace and Public Safety
It integrates into UVC exposure meters and portable safety monitoring devices to ensure workplace compliance with exposure standards.
By offering unmatched sensitivity, wide-area detection, and robust reliability, the SG01XL-C5 is a trusted solution across industries that depend on UVC monitoring.
Why Choose United Spectrum Instruments?
-
Exclusive distributor of SGLUX UVC photodiodes in India
-
Local stock ensures reduced lead times and fast delivery
-
Competitive pricing for medical, industrial, and research markets
-
Expert consultation for UVC system integration and monitoring projects
-
Nationwide after-sales service, technical support, and training
FAQs
What spectral range does the SG01XL-C5 cover?
It detects UVC radiation between 220–280 nm.
How large is its active area?
It features a massive 20.0 mm² active area, providing maximum photocurrent sensitivity.
Does it reject visible and IR wavelengths?
Yes, it achieves complete visible blindness, ensuring pure UVC detection.
Can it operate in harsh environments?
Yes, it functions reliably across −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By offering local inventory, fast delivery, competitive pricing, and nationwide after-sales support.
GET IN TOUCH WITH US
Have Any Questions ?
FAQs
What spectral range does the SG01XL-C5 cover?
It detects UVC radiation between 220–280 nm.
How large is its active area?
It features a massive 20.0 mm² active area, providing maximum photocurrent sensitivity.
Does it reject visible and IR wavelengths?
Yes, it achieves complete visible blindness, ensuring pure UVC detection.
Can it operate in harsh environments?
Yes, it functions reliably across −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By offering local inventory, fast delivery, competitive pricing, and nationwide after-sales support.
WHAT WE OFFER
Reliable Engineering Solutions for Modern Manufacturing
Industrial Laser Systems
Laser Sources
