UVA Photodiode – SG01XL-A5
The SG01XL-A5 is a Silicon Carbide (SiC) UVA photodiode featuring an extra-large 3.0 mm² active area for maximum photon capture and strong photocurrent output. Optimised...
UVA Photodiode – SG01XL-A5
Extra-Large Area UVA Photodiode for High-Sensitivity Industrial, Environmental, Medical, Aerospace, and Scientific Applications
The SG01XL-A5 is a Silicon Carbide (SiC) UVA photodiode featuring an extra-large 3.0 mm² active area for maximum photon capture and strong photocurrent output. Optimised for selective UVA detection, it covers the 315–400 nm range with peak responsivity at 330 nm, providing accurate UVA-only measurements while eliminating UVB, UVC, visible, and IR interference. With responsivity of 0.12 A/W, ultra-low dark current (0.5 fA), and capacitance of 250 pF, the SG01XL-A5 ensures noise-free performance with reliable stability. Its large active area makes it ideal for low-intensity UVA environments, wide-beam monitoring, and applications requiring strong signal currents. Built for rugged performance, it operates reliably between −55 °C and +170 °C, ensuring long-term stability in demanding aerospace, industrial, and environmental applications. Typical uses include UVA curing, sterilisation monitoring, solar UV measurement, safety systems, and photonics research. The SG01XL-A5 combines extra-large area sensitivity, ruggedness, and accuracy for mission-critical UVA monitoring.
Understanding UVA Photodiode - SG01XL-A5
The SG01XL-A5 is an extra-large-area UVA photodiode designed for maximum sensitivity and wide-area ultraviolet detection. With a responsivity range of 315–400 nm and peak at 330 nm, it ensures selective UVA-only measurements unaffected by visible or infrared light. Its 3.0 mm² active area allows for greater photon capture and stronger photocurrent output, making it especially useful in low-intensity UVA conditions. The ultra-low dark current of 0.5 fA ensures high signal-to-noise ratios, while 250 pF capacitance supports stable response. Operating across −55 °C to +170 °C, the SG01XL-A5 is built for long-term reliability in industrial, aerospace, environmental, and scientific UVA monitoring 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 | 3.0 mm² |
| Dark Current (1 V reverse bias) | 0.5 fA |
| Capacitance | 250 pF |
| Short Circuit (10 mW/cm² at peak) | 14.4 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
Extra-Large Active Area for Maximum Sensitivity
The SG01XL-A5’s 3.0 mm² active area provides exceptional photon capture efficiency and high photocurrent output, making it ideal for applications with low UVA intensity or wide-beam exposure.
Selective UVA Detection
Optimised for 315–400 nm with peak responsivity at 330 nm, it ensures pure UVA detection without interference from UVB, UVC, visible, or infrared light.
High Signal Quality
Its ultra-low dark current (0.5 fA) ensures clean, noise-free signals, delivering reliable accuracy in demanding UVA monitoring environments.
Stable Performance Despite High Capacitance
With 250 pF capacitance, it balances large-area sensitivity with stable operation, ensuring consistency in research, industrial, and environmental monitoring systems.
Wide Thermal and Environmental Resilience
Designed for harsh conditions, it functions reliably across −55 °C to +170 °C, making it suitable for aerospace, defence, and outdoor systems.
Long-Term Durability
Constructed with SiC, the SG01XL-A5 resists UVA degradation, ensuring dependable performance over years of continuous use.
Flexible Integration
Its large-area sensitivity and strong output make it adaptable to environmental monitoring stations, industrial curing systems, and scientific research setups.
In summary, the SG01XL-A5 offers superior sensitivity, ruggedness, and durability, making it a trusted choice for mission-critical UVA detection applications.
Applications Across Industries
Industrial UVA Curing Systems
The SG01XL-A5 provides precise UVA monitoring in curing systems for adhesives, coatings, and printing, ensuring quality consistency and efficiency.
Medical and Healthcare Applications
It supports UVA sterilisation monitoring, phototherapy calibration, and dosimetry, ensuring precise radiation levels for medical treatments and validation.
Environmental and Solar Monitoring
Its large-area sensitivity is valuable in solar UVA measurement, atmospheric research, and long-term environmental monitoring.
Scientific and Laboratory Research
The SG01XL-A5 is employed in material science, semiconductor research, and photonics experiments requiring selective UVA response and high accuracy.
Aerospace and Defence
Its rugged construction and wide operating range make it ideal for aerospace UV detection, arc monitoring, and defence-grade sensing.
Workplace and Consumer Safety
It can be integrated into industrial UVA exposure monitoring devices, ensuring safe working conditions and compliance with safety regulations.
By combining extra-large active area, selective UVA response, and rugged design, the SG01XL-A5 delivers dependable ultraviolet detection across industries.
Why Choose United Spectrum Instruments?
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Authorised distributor of SGLUX UVA photodiodes in India
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Local stock ensures shorter lead times and fast delivery
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Competitive pricing tailored for research, industrial, and defence customers
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Expert consultation for application-specific integration and design support
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Nationwide after-sales service, training, and technical support
FAQs
What is the active area of the SG01XL-A5?
It features a large 3.0 mm² active area.
What is its responsivity peak?
The photodiode achieves 0.12 A/W at 330 nm.
What is the detection range?
It is optimised for UVA monitoring between 315–400 nm.
Can it operate in extreme environments?
Yes, it functions reliably across −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By providing local stock, fast delivery, expert consultation, and nationwide after-sales service.
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FAQs
What is the active area of the SG01XL-A5?
It features a large 3.0 mm² active area.
What is its responsivity peak?
The photodiode achieves 0.12 A/W at 330 nm.
What is the detection range?
It is optimised for UVA monitoring between 315–400 nm.
Can it operate in extreme environments?
Yes, it functions reliably across −55 °C to +170 °C.
How does United Spectrum support Indian customers?
By providing local stock, fast delivery, expert consultation, and nationwide after-sales service.
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