Optical Sensors & Detector – UV Photodiodes
UVA+UVB+UVC+VUV Photodiode – SG03R01-5
Broadband UV Photodiode for UVA, UVB, UVC, and VUV Detection in Compact Industrial and Scientific Applications
The SG03R01-5 is a Silicon Carbide (SiC)-based broadband photodiode designed to detect UVA, UVB, UVC, and vacuum ultraviolet (VUV) radiation with exceptional accuracy and stability. Covering the full UV range from 200–400 nm and extending into VUV wavelengths, it enables precise monitoring across multiple UV bands. Its compact 0.5 mm² active area ensures easy integration into handheld UV meters, embedded safety devices, and scientific instruments without compromising sensitivity. Delivering peak responsivity of 0.10 A/W in the deep-UV region, ultra-low dark current (0.1 fA), and low capacitance (50 pF), the SG03R01-5 provides noise-free, stable signals with rapid responsiveness for real-time monitoring. Built from rugged Silicon Carbide, it ensures complete visible blindness, eliminating interference from visible and infrared wavelengths for pure UV-only detection. With operating temperatures ranging from −55 °C to +170 °C, the SG03R01-5 is a durable and long-lasting solution for sterilisation monitoring, plasma diagnostics, aerospace, and advanced photonics applications.
Understanding UVA+UVB+UVC+VUV Photodiode - SG03R01-5
The SG03R01-5 is a broadband photodiode engineered for UVA, UVB, UVC, and VUV radiation detection with precision and reliability. Its compact 0.5 mm² active area allows for seamless integration into portable or embedded UV monitoring systems. With peak responsivity of 0.10 A/W in the deep-UV spectrum, ultra-low dark current (0.1 fA), and low capacitance (50 pF), it ensures fast response, noise-free operation, and reliable signal stability. Constructed with Silicon Carbide, it guarantees complete visible blindness, enabling accurate UV-only detection without interference. Designed to withstand harsh environments, it operates across −55 °C to +170 °C, ensuring durability and consistent performance in demanding applications.
Technical Specifications
| Feature | Specification |
| Spectral Range |
UVA, UVB, UVC, VUV (200 – 400 nm, extended VUV)
|
| Peak Responsivity |
0.10 A/W (deep-UV region)
|
| Active Area | 0.5 mm² |
| Visible Blindness | > 10¹⁰ |
| Dark Current (1 V reverse bias) | 0.1 fA |
| Capacitance | 50 pF |
| Short Circuit (10 mW/cm² at peak) | 4.7 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
Broadband Detection from UVA to VUV
The SG03R01-5 is designed to monitor UVA, UVB, UVC, and VUV radiation, making it a versatile solution for diverse UV detection requirements.
Compact Integration with High Sensitivity
Its 0.5 mm² active area enables strong photocurrents while maintaining a compact size, making it ideal for portable and embedded UV devices.
Fast Response Time
With a low capacitance of 50 pF, the SG03R01-5 supports rapid responsiveness, crucial for real-time UV monitoring and safety systems.
Noise-Free Signal Performance
The ultra-low dark current of 0.1 fA provides highly stable, noise-free signals, even under very low UV intensity conditions.
Pure UV Measurement
Constructed with Silicon Carbide, the device achieves complete visible blindness, ensuring accurate UV-only detection without interference from visible or IR radiation.
Thermal and Mechanical Ruggedness
The SG03R01-5 operates reliably across −55 °C to +170 °C, making it suitable for aerospace, industrial, and outdoor environments.
Durability and Long-Term Stability
Its SiC construction resists UV degradation, guaranteeing stable calibration and consistent long-term performance in continuous monitoring applications.
By combining broadband responsivity, compact form factor, and rugged reliability, the SG03R01-5 provides a dependable solution for UVA, UVB, UVC, and VUV applications.
Applications Across Industries
Medical and Healthcare
The SG03R01-5 is applied in UV sterilisation validation systems, phototherapy calibration, and medical safety devices for monitoring UV exposure.
Industrial Sterilisation
It validates broadband UV disinfection systems, ensuring precise monitoring in pharmaceutical, cleanroom, and packaging industries.
Environmental Monitoring
The sensor supports atmospheric UV measurement, water disinfection systems, and air sterilisation applications for regulatory compliance and safety.
Scientific Research
Researchers use it for UV source characterisation, plasma radiation analysis, and photonics studies requiring UVA to VUV detection.
Aerospace and Defence
Its ruggedness and wide operating temperature range make it suitable for aerospace radiation monitoring and defence-grade UV safety systems.
Portable Devices and IoT Systems
With its compact design, it is ideal for handheld UV meters, wearable UV dosimeters, and IoT-enabled monitoring solutions.
By delivering multi-band responsivity, compact integration, and long-term reliability, the SG03R01-5 is trusted for critical UV monitoring across industries.
Why Choose United Spectrum Instruments?
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Official distributor of SGLUX UV photodiodes in India
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Local inventory ensures fast delivery and shorter lead times
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Competitive pricing across medical, industrial, and research markets
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Expert consultation for broadband UV system design and integration
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Nationwide after-sales service, technical training, and customer support
FAQs
What spectral bands does the SG03R01-5 cover?
It covers UVA, UVB, UVC, and VUV (200–400 nm with VUV extension).
What is the active area size?
The device has a compact 0.5 mm² active area.
Does it eliminate interference from visible and IR light?
Yes, it ensures complete visible blindness using SiC technology.
What environments can it be used in?
It operates reliably from −55 °C to +170 °C in harsh conditions.
How does United Spectrum support Indian customers?
Through local stock availability, quick delivery, technical guidance, and nationwide after-sales service.
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FAQs
What spectral bands does the SG03R01-5 cover?
It covers UVA, UVB, UVC, and VUV (200–400 nm with VUV extension).
What is the active area size?
The device has a compact 0.5 mm² active area.
Does it eliminate interference from visible and IR light?
Yes, it ensures complete visible blindness using SiC technology.
What environments can it be used in?
It operates reliably from −55 °C to +170 °C in harsh conditions.
How does United Spectrum support Indian customers?
Through local stock availability, quick delivery, technical guidance, and nationwide after-sales service.
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