Broadband UV Photodiode – SG01S-5
The SG01S-5 is a compact and robust Silicon Carbide (SiC) UV photodiode designed for precision ultraviolet detection across a wide range of research and industrial...
Broadband UV Photodiode – SG01S-5
Compact Silicon Carbide UV Detector for Precision Measurement, High Sensitivity, Stability, and Industrial Reliability
The SG01S-5 is a compact and robust Silicon Carbide (SiC) UV photodiode designed for precision ultraviolet detection across a wide range of research and industrial applications. Featuring an active area of 0.03 mm², it combines compact integration with dependable performance. The detector offers peak responsivity of 0.13 A/W at 280 nm and operates within a responsivity range of 221–358 nm. Its excellent visible blindness ensures pure UV detection without interference from visible or infrared radiation. With ultra-low dark current and low capacitance, it delivers high signal-to-noise ratios and fast response times. Capable of withstanding extreme conditions with an operating range of −55 °C to +170 °C, the SG01S-5 is built for long-term reliability. Applications include flame detection, UV curing, solar monitoring, ozone research, medical sterilisation monitoring, and semiconductor R&D. Its durability, compact design, and long service life make it a trusted UV sensor for mission-critical tasks.
Understanding Broadband UV Photodiode - SG01S-5
The SG01S-5 is a broadband Silicon Carbide (SiC) UV photodiode engineered for selective ultraviolet detection with complete suppression of visible and infrared wavelengths. Its broadband responsivity covers the critical UV spectrum from 221 nm to 358 nm, with peak sensitivity at 280 nm, ensuring accurate and interference-free measurements. Featuring a compact 0.03 mm² active area, the SG01S-5 is ideal for applications where integration space is limited yet precision is essential. Its ultra-low dark current of 0.1 fA and capacitance of 7 pF provide a superior signal-to-noise ratio and fast response times, supporting real-time monitoring tasks such as flame detection and UV curing control. With an extended operating range of −55 °C to +170 °C, it performs reliably in demanding industrial, aerospace, and research environments. The SG01S-5 is a durable, stable, and compact UV detection solution tailored for long-term reliability.
Technical Specifications
| Feature | Specification |
| Typical Responsivity at Peak Wavelength | 0.13 A/W |
| Wavelength of Max. Responsivity | 280 nm |
| Responsivity Range (S = 0.1 × Smax) | 221 … 358 nm |
| Visible Blindness (Smax / S>405 nm) | > 10¹⁰ |
| Active Area | 0.03 mm² |
| Dark Current (1 V reverse bias) | 0.1 fA |
| Capacitance | 7 pF |
| Short Circuit (10 mW/cm² at peak) | 480 nA |
| 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
Compact UV Detection
The SG01S-5 provides reliable ultraviolet measurement with a smaller 0.03 mm² active area, making it highly suitable for compact systems and applications where space efficiency is essential.
High Sensitivity with Visible Blindness
With a responsivity of 0.13 A/W at 280 nm, the SG01S-5 captures UV radiation with high accuracy. Its inherent visible blindness ensures that only UV signals are detected, avoiding interference from ambient light sources.
Low Dark Current and Noise Performance
The photodiode’s ultra-low dark current of 0.1 fA allows for low-noise detection, supporting a strong signal-to-noise ratio even in weak UV environments. This feature ensures dependable results across scientific and industrial processes.
Fast Response and Low Capacitance
With a capacitance of 7 pF, the SG01S-5 offers fast response times, critical for real-time UV sensing applications such as flame monitoring and high-speed UV curing control.
Durability and Thermal Stability
The device is engineered for resilience, operating from −55 °C to +170 °C. Its rugged design ensures reliable performance in extreme environments, from industrial plants to aerospace conditions.
Long-Term Stability
The SG01S-5 resists UV degradation and delivers stable performance across extended use, lowering maintenance needs and enhancing system reliability.
In summary, the SG01S-5 offers compact design, high precision, fast response, and long-term reliability, making it a versatile solution for precision UV detection in both research and industry.
Applications Across Industries
Environmental and Climate Monitoring
The SG01S-5 is used for solar UV radiation measurement, ozone monitoring, and atmospheric studies. Its visible blindness ensures pure UV data collection, making it vital for environmental science and climate research.
Industrial Flame Detection
In petrochemicals, power plants, and manufacturing facilities, the SG01S-5 is employed in flame detection systems. Its fast response and high UV selectivity enable early hazard detection, improving operational safety.
Medical and Laboratory Applications
Healthcare and laboratory facilities use the SG01S-5 in UV dosimetry, sterilisation monitoring, and calibration of phototherapy equipment. Its accuracy ensures safety and compliance with medical standards.
UV Curing and Manufacturing
In printing, coatings, and adhesive industries, UV curing processes demand precise monitoring. The SG01S-5 ensures consistent exposure, better process efficiency, and higher product quality.
Photonics and Semiconductor R&D
Research laboratories use the SG01S-5 for characterising UV-sensitive materials and developing new photonic devices. Its compact design allows flexible integration into test setups.
Aerospace and Defence
The SG01S-5’s thermal stability and rugged build make it reliable in aerospace systems and defence monitoring. It supports solar UV detection, arc monitoring, and mission-critical sensing operations.
By spanning multiple industries, the SG01S-5 demonstrates its adaptability and dependability, offering consistent, interference-free ultraviolet detection.
Why Choose United Spectrum Instruments?
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Authorised distributor of SGLUX UV photodiodes in India
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Local inventory for faster delivery and reduced lead times
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Competitive pricing tailored to Indian research and industrial requirements
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Expert consultation for integration into applications across diverse industries
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Pan-India after-sales support, training, and technical service
FAQs
What is the peak responsivity of the SG01S-5?
It offers a peak responsivity of 0.13 A/W at 280 nm.
How does it differ from other UV detectors?
It is compact with a smaller active area, delivering fast response and easy integration.
What environments can it operate in?
It functions reliably between −55 °C and +170 °C, suitable for harsh industrial and aerospace settings.
How does United Spectrum support customers in India?
United Spectrum provides local stock, quick delivery, application consultation, and after-sales service.
What are typical applications for this photodiode?
It is widely used in flame detection, UV curing, environmental monitoring, aerospace, medical sterilisation, and R&D.
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FAQs
What is the peak responsivity of the SG01S-5?
It offers a peak responsivity of 0.13 A/W at 280 nm.
How does it differ from other UV detectors?
It is compact with a smaller active area, delivering fast response and easy integration.
What environments can it operate in?
It functions reliably between −55 °C and +170 °C, suitable for harsh industrial and aerospace settings.
How does United Spectrum support customers in India?
United Spectrum provides local stock, quick delivery, application consultation, and after-sales service.
What are typical applications for this photodiode?
It is widely used in flame detection, UV curing, environmental monitoring, aerospace, medical sterilisation, and R&D.
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