UVA Photodiode- SG01L-A18UVA
The SG01L-A18UVA is a Silicon Carbide (SiC) photodiode designed for selective UVA detection in the 315–400 nm range, delivering precise and interference-free measurements. With a...
UVA Photodiode- SG01L-A18UVA
Large-Area UVA Photodiode for High-Sensitivity Industrial, Environmental, Medical, and Aerospace Monitoring Applications
The SG01L-A18UVA is a Silicon Carbide (SiC) photodiode designed for selective UVA detection in the 315–400 nm range, delivering precise and interference-free measurements. With a peak responsivity of 0.12 A/W at 330 nm, it provides accurate monitoring of UVA radiation without influence from UVB, UVC, visible, or IR wavelengths. Featuring a large 1.0 mm² active area, it ensures strong photocurrent output and enhanced sensitivity, making it particularly effective in low-intensity UVA environments or wide-beam detection setups. The SG01L-A18UVA combines ultra-low dark current (0.2 fA) with 50 pF capacitance, offering clean, noise-free signals and fast response times. Designed for robust operation across a wide temperature range (−55 °C to +170 °C), it is well-suited for industrial, aerospace, environmental, and medical applications. Typical uses include UVA curing, sterilisation validation, solar radiation monitoring, workplace safety, and scientific research. It delivers sensitivity, reliability, and stability for mission-critical UVA monitoring tasks.
Understanding UVA Photodiode- SG01L-A18UVA
The SG01L-A18UVA is a large-area UVA photodiode optimised for reliable ultraviolet-A detection, with a responsivity range of 315–400 nm and peak sensitivity at 330 nm. Its 1.0 mm² active area enables higher photon capture, producing strong photocurrents and stable performance, even in low-intensity UVA applications. Built on durable SiC technology, it ensures complete suppression of visible and IR wavelengths, providing UVA-only accuracy. With ultra-low dark current (0.2 fA) and 50 pF capacitance, it achieves excellent signal-to-noise ratios and fast response times. Operating between −55 °C and +170 °C, the SG01L-A18UVA is a rugged and dependable detector for industrial, environmental, medical, and aerospace systems.
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 | 1.0 mm² |
| Dark Current (1 V reverse bias) | 0.2 fA |
| Capacitance | 50 pF |
| Short Circuit (10 mW/cm² at peak) | 4.8 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
Large Active Area for Enhanced Sensitivity
The SG01L-A18UVA has a 1.0 mm² active area, enabling higher photon collection and stronger photocurrent output, ideal for low-intensity UVA detection.
UVA-Specific Responsivity
Covering 315–400 nm with peak detection at 330 nm, it ensures selective UVA-only detection, blocking UVB, UVC, visible, and IR wavelengths.
High Signal Quality with Low Noise
An ultra-low dark current of 0.2 fA ensures noise-free, stable signals, even in challenging UVA monitoring environments.
Rapid Response Times
With 50 pF capacitance, it balances large-area sensitivity with quick response speeds, suitable for real-time UVA curing and sterilisation systems.
Thermal Endurance and Rugged Design
Operating between −55 °C and +170 °C, it maintains stable performance across demanding industrial, aerospace, and outdoor environments.
Long-Term Stability
Constructed with SiC, the SG01L-A18UVA is resistant to UVA degradation, ensuring reliable long-term operation and reduced need for recalibration.
Integration Versatility
Its large-area sensitivity makes it suitable for laboratory equipment, industrial monitoring, and scientific research systems requiring stronger photocurrents.
By combining large-area sensitivity, precise UVA selectivity, and robust long-term stability, the SG01L-A18UVA delivers dependable performance for critical UVA applications.
Applications Across Industries
Industrial UVA Curing Systems
The SG01L-A18UVA is widely applied in UVA curing systems for coatings, adhesives, and printing, ensuring consistent curing intensity monitoring and improved quality assurance.
Medical and Healthcare Applications
It supports UVA sterilisation monitoring, phototherapy calibration, and medical dosimetry, delivering precise UVA-only detection for healthcare and laboratory environments.
Environmental and Solar Research
The photodiode is used in solar radiation monitoring, ozone studies, and atmospheric science, offering reliable long-term UVA data collection in outdoor conditions.
Laboratory and Research Applications
Researchers employ the SG01L-A18UVA in photonics, semiconductor development, and materials science studies requiring accurate UVA detection.
Aerospace and Defence
With rugged construction and high thermal tolerance, the SG01L-A18UVA is suitable for aerospace UVA monitoring, arc detection, and defence-grade UV sensing systems.
Workplace Safety and Consumer Monitoring
It can be integrated into workplace UVA exposure monitoring devices, ensuring compliance with occupational safety standards and protection against UVA risks.
By combining sensitivity, stability, and durability, the SG01L-A18UVA is a versatile photodiode for UVA detection in diverse applications.
Why Choose United Spectrum Instruments?
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Exclusive 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 tailored to industry, academia, and defence sectors
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Expert consultation for application-specific integration
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Nationwide after-sales service, training, and technical support
FAQs
What is the active area of the SG01L-A18UVA?
It has a large 1.0 mm² active area for higher sensitivity.
What is its peak responsivity?
It achieves 0.12 A/W at 330 nm.
What is the UVA detection range?
The device selectively detects UVA radiation between 315–400 nm.
Can it operate in extreme environments?
Yes, it performs reliably between −55 °C and +170 °C.
How does United Spectrum support Indian customers?
By offering fast delivery, expert consultation, and nationwide after-sales service.
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FAQs
What is the active area of the SG01L-A18UVA?
It has a large 1.0 mm² active area for higher sensitivity.
What is its peak responsivity?
It achieves 0.12 A/W at 330 nm.
What is the UVA detection range?
The device selectively detects UVA radiation between 315–400 nm.
Can it operate in extreme environments?
Yes, it performs reliably between −55 °C and +170 °C.
How does United Spectrum support Indian customers?
By offering fast delivery, expert consultation, and nationwide after-sales service.
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