UVA Photodiode – SG01D-A18ISO90UVA
The SG01D-A18ISO90UVA is a Silicon Carbide (SiC) photodiode designed for selective UVA detection between 315–400 nm, with peak responsivity at 330 nm. It features a...
UVA Photodiode – SG01D-A18ISO90UVA
Durable UVA Photodiode with ISO90 Encapsulation for Reliable Industrial, Aerospace, Medical, and Environmental Applications
The SG01D-A18ISO90UVA is a Silicon Carbide (SiC) photodiode designed for selective UVA detection between 315–400 nm, with peak responsivity at 330 nm. It features a medium-sized 0.5 mm² active area, delivering strong sensitivity while maintaining easy integration into industrial, research, and medical systems. With a responsivity peak of 0.12 A/W, ultra-low dark current of 0.2 fA, and capacitance of 25 pF, it ensures accurate, noise-free measurements with rapid response times. The ISO90 encapsulation adds environmental ruggedness, protecting the photodiode against dust, moisture, and mechanical stress, making it suitable for outdoor and harsh industrial conditions. Designed for long-term stability, the SG01D-A18ISO90UVA operates across extreme temperatures (−55 °C to +170 °C) without performance degradation. Typical applications include UVA curing, sterilisation monitoring, solar UV research, aerospace UV sensing, and workplace safety. Combining UVA-specific selectivity, robust sensitivity, and ISO90 protection, it is an ideal choice for critical ultraviolet monitoring tasks.
Understanding UVA Photodiode - SG01D-A18ISO90UVA
The SG01D-A18ISO90UVA is engineered for UVA-specific applications where reliability and ruggedness are critical. Covering 315–400 nm with peak responsivity at 330 nm, it ensures precise UVA-only measurements, free from UVB, UVC, visible, and IR interference. Its 0.5 mm² active area offers balanced sensitivity, while the ISO90 encapsulation provides protection against environmental contaminants, ensuring reliable use in outdoor, aerospace, and industrial systems. With ultra-low dark current (0.2 fA) and 25 pF capacitance, it offers high signal-to-noise ratios and rapid response times. Operating from −55 °C to +170 °C, the SG01D-A18ISO90UVA is a durable and precise UVA detector for long-term use.
Technical Specifications
| Feature | Specification |
| Typical Responsivity at Peak Wavelength | 0.12 A/W |
| Wavelength of Max. Responsivity | 330 nm |
| Responsivity Range (UVA Specific) | 315 … 400 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 |
Key Features and Advantages
ISO90 Encapsulation for Rugged Reliability
The ISO90 package protects the SG01D-A18ISO90UVA from dust, moisture, and mechanical stress, making it suitable for outdoor environments and harsh industrial conditions.
UVA-Optimised Detection
It selectively detects UVA radiation (315–400 nm), with peak sensitivity at 330 nm, ensuring application-specific accuracy without interference from other light sources.
Medium Active Area for Balanced Sensitivity
The 0.5 mm² active area provides stronger signal output than compact models, ideal for industrial and laboratory applications requiring higher photocurrents.
High Signal Quality
An ultra-low dark current of 0.2 fA ensures stable, noise-free performance even in low-intensity UVA environments.
Fast Response Performance
With a capacitance of 25 pF, the photodiode delivers rapid response times for real-time UVA monitoring in curing and sterilisation.
Wide Thermal Endurance
Operating across −55 °C to +170 °C, it performs reliably in extreme aerospace, defence, and industrial conditions.
Long-Term Stability
SiC construction ensures resistance to UVA degradation, reducing recalibration needs and ensuring dependable long-term operation.
The SG01D-A18ISO90UVA offers UVA selectivity, rugged encapsulation, and long-lasting stability, making it a trusted detector for mission-critical applications.
Applications Across Industries
Industrial UVA Curing
The photodiode ensures precise monitoring of UVA curing systems in coatings, adhesives, and printing, helping optimise production quality and process repeatability.
Medical and Healthcare
It is applied in sterilisation monitoring, UVA dosimetry, and phototherapy calibration, providing reliable UVA-only measurement for healthcare environments.
Environmental and Solar Research
The SG01D-A18ISO90UVA supports atmospheric monitoring and solar UVA studies, with ISO90 encapsulation ensuring stability in outdoor conditions.
Laboratory and Scientific Research
It is suited for material testing, photonics research, and semiconductor studies requiring selective UVA monitoring with long-term stability.
Aerospace and Defence
Rugged construction and ISO90 protection make it reliable for aerospace UVA monitoring, arc detection, and defence-grade UV sensing in extreme environments.
Workplace Safety
It can be integrated into UVA exposure monitoring systems for industries, ensuring compliance with occupational safety standards.
By combining durability, precision, and rugged UVA selectivity, the SG01D-A18ISO90UVA is a versatile solution across industrial, environmental, and defence sectors.
Why Choose United Spectrum Instruments?
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Authorised distributor of SGLUX UVA photodiodes in India
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Local inventory ensures quick delivery and reduced lead times
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Competitive pricing for industry, academia, and defence customers
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Application-specific consultation and integration support
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Pan-India after-sales service, training, and technical assistance
FAQs
What is the active area of the SG01D-A18ISO90UVA?
It has a 0.5 mm² active area for medium sensitivity.
What is the benefit of ISO90 encapsulation?
It protects against moisture, dust, and mechanical stress, ensuring rugged long-term use.
What is the responsivity peak?
It achieves 0.12 A/W at 330 nm.
Can it operate in harsh conditions?
Yes, it functions reliably from −55 °C to +170 °C.
How does United Spectrum support Indian clients?
By offering fast delivery, competitive pricing, technical consultation, and nationwide after-sales service.
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FAQs
What is the active area of the SG01D-A18ISO90UVA?
It has a 0.5 mm² active area for medium sensitivity.
What is the benefit of ISO90 encapsulation?
It protects against moisture, dust, and mechanical stress, ensuring rugged long-term use.
What is the responsivity peak?
It achieves 0.12 A/W at 330 nm.
Can it operate in harsh conditions?
Yes, it functions reliably from −55 °C to +170 °C.
How does United Spectrum support Indian clients?
By offering fast delivery, competitive pricing, technical consultation, and nationwide after-sales service.
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