UVB+UVC Photodiode – SG01D-B5
The SG01D-B5 is a Silicon Carbide (SiC)-based photodiode designed for selective UVB detection within the 280–315 nm wavelength range. With a 0.5 mm² active area,...
UVB+UVC Photodiode – SG01D-B5
Compact UVB Photodiode for Precise Industrial, Medical, Environmental, Aerospace, and Scientific Monitoring Applications
The SG01D-B5 is a Silicon Carbide (SiC)-based photodiode designed for selective UVB detection within the 280–315 nm wavelength range. With a 0.5 mm² active area, it balances compact integration with strong sensitivity, producing stable photocurrents for industrial, research, and medical systems. The photodiode provides high accuracy with a peak responsivity of 0.11 A/W at 300 nm, ensuring reliable UVB-only measurements while eliminating interference from UVA, UVC, visible, and IR radiation. Its visible blindness guarantees accurate detection in diverse environments. With ultra-low dark current (0.2 fA) and capacitance of 25 pF, the SG01D-B5 ensures noise-free signals and fast response times for real-time monitoring. Built with rugged SiC technology, it offers long-term resistance to UV degradation and stable performance across extreme conditions, operating reliably between −55 °C and +170 °C. Applications include UVB sterilisation monitoring, solar radiation studies, environmental sensing, aerospace systems, and photonics research.
Understanding UVB+UVC Photodiode - SG01D-B5
The SG01D-B5 is a medium-active-area photodiode dedicated to selective UVB detection between 280–315 nm, with peak responsivity at 300 nm. Its 0.5 mm² active area provides stronger photocurrents than compact detectors, making it suitable for systems that require higher sensitivity while maintaining integration flexibility. With ultra-low dark current (0.2 fA) and 25 pF capacitance, it offers high signal-to-noise ratios and fast response speeds for real-time UVB monitoring. Its rugged Silicon Carbide design ensures excellent visible blindness and resistance to UV damage, enabling stable long-term use. Reliable across −55 °C to +170 °C, the SG01D-B5 is ideal for industrial, medical, environmental, and aerospace applications.
Technical Specifications
| Feature | Specification |
| Spectral Range (UVB Specific) | 280 … 315 nm |
| Peak Responsivity | 0.11 A/W at 300 nm |
| Visible Blindness | > 10¹⁰ |
| Active Area | 0.5 mm² |
| Dark Current (1 V reverse bias) | 0.2 fA |
| Capacitance | 25 pF |
| Short Circuit (10 mW/cm² at peak) | 2.4 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 |
| Encapsulation |
ISO90 rugged package
|
Key Features and Advantages
UVB-Specific Responsivity
The SG01D-B5 is tailored for the 280–315 nm range, with peak responsivity at 300 nm, providing selective UVB-only measurements for applications such as sterilisation and environmental monitoring.
Medium Active Area for Higher Sensitivity
Its 0.5 mm² active area enhances photon capture and produces stronger photocurrents, delivering stable and reliable signals across different setups.
Superior Signal-to-Noise Ratio
With ultra-low dark current (0.2 fA), it ensures clean, noise-free measurements, making it suitable for high-precision monitoring.
Fast Response for Real-Time Monitoring
Capacitance of 25 pF enables rapid response times, making the photodiode effective in dynamic UVB monitoring systems.
Visible Blindness for Accurate Detection
Built with SiC, the device achieves complete rejection of visible and infrared radiation, ensuring UVB purity in measurements.
Thermal Stability Across Environments
With reliable operation between −55 °C and +170 °C, the SG01D-B5 is suitable for extreme conditions in aerospace and industrial use.
Long-Term Reliability
Its Silicon Carbide construction resists UV degradation, ensuring long service life with stable calibration over years of use.
The SG01D-B5 combines UVB accuracy, medium-area sensitivity, and rugged durability, making it a dependable detector for critical ultraviolet applications.
Applications Across Industries
Medical and Healthcare
The SG01D-B5 is widely used in phototherapy calibration, UVB sterilisation systems, and healthcare dosimetry, ensuring safe and precise UVB exposure levels.
Environmental and Solar Research
Its selective UVB sensitivity supports solar UV index studies, ozone monitoring, and atmospheric science research, providing accurate broadband UV data.
Industrial Monitoring
The device enables UV curing, disinfection, and UVB process monitoring, offering stable performance in challenging industrial conditions.
Scientific Research
In laboratories, the SG01D-B5 is employed for material testing, photonics experiments, and semiconductor studies requiring UVB-specific detection.
Aerospace and Defence
Its rugged design and wide operating temperature range make it suitable for aerospace UVB monitoring, flame detection, and defence-grade UV sensing.
Workplace Safety Systems
The SG01D-B5 can be integrated into UV exposure monitoring systems to protect workers in industries where UVB exposure must be regulated.
By combining UVB specificity, durability, and precision, the SG01D-B5 serves diverse applications across industry, medicine, and science.
Why Choose United Spectrum Instruments?
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Authorised distributor of SGLUX UV photodiodes in India
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Local stock ensures reduced lead times and quick delivery
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Competitive pricing for research, industrial, medical, and aerospace sectors
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Application-specific consultation for seamless integration
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Nationwide after-sales service, training, and technical support
FAQs
What is the spectral detection range of the SG01D-B5?
It is designed for selective UVB detection between 280–315 nm.
What is the active area size?
It has a medium 0.5 mm² active area for stronger sensitivity.
What is its peak responsivity?
The photodiode achieves 0.11 A/W at 300 nm.
Can it operate in extreme environments?
Yes, it functions reliably between −55 °C and +170 °C.
How does United Spectrum support Indian customers?
By providing local stock, fast delivery, technical consultation, and pan-India after-sales support.
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FAQs
What is the spectral detection range of the SG01D-B5?
It is designed for selective UVB detection between 280–315 nm.
What is the active area size?
It has a medium 0.5 mm² active area for stronger sensitivity.
What is its peak responsivity?
The photodiode achieves 0.11 A/W at 300 nm.
Can it operate in extreme environments?
Yes, it functions reliably between −55 °C and +170 °C.
How does United Spectrum support Indian customers?
By providing local stock, fast delivery, technical consultation, and pan-India after-sales support.
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