Optical Sensors & Detector – UV Photodiodes
UVA+UVB+UVC+VUV Photodiode – SG03R10-5
Broadband UV Photodiode for UVA, UVB, UVC, and VUV Detection in Harsh Industrial and Scientific Environments
The SG03R10-5 is a Silicon Carbide (SiC)-based broadband UV photodiode optimised for detecting UVA, UVB, UVC, and vacuum ultraviolet (VUV) radiation. With a compact 0.5 mm² active area, it delivers fast response times and reliable integration into portable and embedded UV monitoring systems. Covering the full UV range from 200–400 nm and extending into the VUV spectrum, it provides high sensitivity for a wide variety of industrial, environmental, and research applications. The SG03R10-5 offers peak responsivity of 0.10 A/W in the deep-UV region, ultra-low dark current (0.1 fA), and low capacitance (50 pF), ensuring clean, stable, and noise-free signals. Its Silicon Carbide construction guarantees complete visible blindness, eliminating interference from visible and infrared light for pure UV-only measurements. With rugged performance from −55 °C to +170 °C, the SG03R10-5 ensures long-term stability in demanding applications such as sterilisation monitoring, UV calibration, plasma diagnostics, and aerospace radiation research.
Understanding UVA+UVB+UVC+VUV Photodiode - SG03R10-5
The SG03R10-5 is a compact, broadband UV photodiode engineered to detect UVA, UVB, UVC, and VUV radiation with high precision. Its 0.5 mm² active area offers a balance between sensitivity and compactness, making it ideal for portable or embedded UV safety and monitoring devices. With ultra-low dark current (0.1 fA) and capacitance of 50 pF, it provides stable, noise-free signal outputs and rapid responsiveness for real-time measurements. Its responsivity extends from 200–400 nm, with peak sensitivity in the deep-UV region. Rugged SiC construction ensures complete visible blindness, long-term durability, and reliable operation across −55 °C to +170 °C.
Technical Specifications
| Feature | Specification |
| Spectral Range |
UVA, UVB, UVC, VUV (200 – 400 nm, extended into 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 SG03R10-5 detects radiation across the UVA, UVB, UVC, and VUV bands, enabling versatile use in applications requiring multi-band UV sensitivity.
Compact Active Area for Integration
Its 0.5 mm² active area provides reliable photocurrents while keeping the sensor compact, ideal for integration into handheld UV meters, IoT devices, and embedded safety systems.
Fast Responsiveness
With low capacitance of 50 pF, the SG03R10-5 offers rapid response times, supporting real-time monitoring and process control applications.
Noise-Free Signal Stability
Ultra-low dark current (0.1 fA) ensures stable, interference-free signals, essential for sensitive UV detection tasks.
Visible Blindness
SiC technology blocks visible and IR wavelengths, guaranteeing pure UV-only measurements.
Thermal Ruggedness
Operating from −55 °C to +170 °C, the SG03R10-5 is built for outdoor, industrial, aerospace, and laboratory environments.
Durability and Long-Term Stability
Its SiC construction resists UV degradation, ensuring stable calibration and reliable operation over years of use.
By combining broadband coverage, compact size, and rugged design, the SG03R10-5 is a dependable solution for UVA through VUV monitoring.
Applications Across Industries
Medical and Healthcare
The SG03R10-5 supports UV sterilisation monitoring, phototherapy calibration, and medical safety instruments requiring multi-band UV detection.
Industrial Sterilisation
It validates broadband UV lamps and LED disinfection systems in cleanrooms, packaging lines, and pharmaceutical facilities.
Environmental Monitoring
The photodiode is used in UV index stations, water treatment systems, and air sterilisation systems, ensuring safe UV intensity levels.
Scientific Research
Researchers employ it for broadband UV source characterisation, plasma radiation diagnostics, and photonics experiments covering UVA to VUV.
Aerospace and Defence
Its ruggedness and wide operating range make it ideal for high-altitude radiation monitoring and defence-grade safety systems.
Portable and Consumer Devices
The SG03R10-5 is well-suited for portable UV dosimeters, IoT-enabled UV monitoring devices, and compact safety meters.
By combining multi-band responsivity, compact form factor, and rugged performance, the SG03R10-5 is trusted across diverse industries for UV safety and research.
Why Choose United Spectrum Instruments?
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Exclusive distributor of SGLUX broadband UV photodiodes in India
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Local inventory ensures faster delivery and reduced lead times
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Competitive pricing across healthcare, industrial, and research markets
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Expert consultation for system integration and custom UV monitoring solutions
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Nationwide after-sales service, training, and technical support
FAQs
What UV bands does the SG03R10-5 detect?
It covers UVA, UVB, UVC, and VUV (200–400 nm, extended into VUV).
What is the size of its active area?
It has a compact 0.5 mm² active area for integration into small devices.
Does it eliminate visible and IR interference?
Yes, it provides complete visible blindness, ensuring pure UV detection.
What environments can it operate in?
It works reliably between −55 °C and +170 °C, even in harsh conditions.
How does United Spectrum support Indian customers?
By providing local stock, quick delivery, expert advice, and nationwide after-sales service.
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FAQs
What UV bands does the SG03R10-5 detect?
It covers UVA, UVB, UVC, and VUV (200–400 nm, extended into VUV).
What is the size of its active area?
It has a compact 0.5 mm² active area for integration into small devices.
Does it eliminate visible and IR interference?
Yes, it provides complete visible blindness, ensuring pure UV detection.
What environments can it operate in?
It works reliably between −55 °C and +170 °C, even in harsh conditions.
How does United Spectrum support Indian customers?
By providing local stock, quick delivery, expert advice, and nationwide after-sales service.
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