Broadband UV Photodiode – SG01D-5
The SG01D-5 is a Silicon Carbide (SiC) broadband UV photodiode designed in a dual-lead package for durable mounting and reliable long-term performance. With a compact...
Broadband UV Photodiode – SG01D-5
Compact Dual-Lead UV Photodiode with High Sensitivity, Rugged Stability, and Reliable Long-Term Performance
The SG01D-5 is a Silicon Carbide (SiC) broadband UV photodiode designed in a dual-lead package for durable mounting and reliable long-term performance. With a compact 0.03 mm² active area, it offers precise ultraviolet detection suitable for space-constrained systems. The device provides a responsivity peak of 0.13 A/W at 280 nm and covers a responsivity range from 221–358 nm, ensuring selective ultraviolet-only measurements with excellent visible blindness. Featuring ultra-low dark current of 0.1 fA and capacitance of 7 pF, the SG01D-5 guarantees low-noise operation, high signal-to-noise ratios, and fast response times. Built to withstand extreme environments, it operates across −55 °C to +170 °C, making it reliable in industrial, aerospace, and outdoor systems. Typical applications include flame detection, UV curing process monitoring, solar radiation and ozone studies, sterilisation validation, and photonics R&D. The SG01D-5 combines compact design, rugged packaging, and high-performance UV sensing for demanding industrial and scientific applications.
Understanding Broadband UV Photodiode - SG01D-5
The SG01D-5 is a dual-lead UV photodiode that integrates Silicon Carbide broadband detection with a rugged package for stability in demanding environments. With a compact 0.03 mm² active area, it is designed for precision in space-limited applications. Offering a peak responsivity of 0.13 A/W at 280 nm and a responsivity range of 221–358 nm, it ensures pure UV-only detection with excellent visible blindness. Its ultra-low dark current of 0.1 fA minimises noise, while the 7 pF capacitance enables quick response for real-time monitoring. With reliable operation from −55 °C to +170 °C, the SG01D-5 is engineered for long-term durability.
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
Silicon Carbide UV Selectivity
The SG01D-5 leverages SiC material, which provides high sensitivity to UV radiation while naturally rejecting visible and infrared wavelengths. This ensures pure and interference-free UV detection.
Compact Active Area for Precision
With its 0.03 mm² active area, the SG01D-5 is ideal for compact devices where space efficiency is crucial but accurate UV detection is still required.
High Responsivity and Sensitivity
Offering a peak responsivity of 0.13 A/W at 280 nm, it provides reliable UV signal measurement across the 221–358 nm range. This enables accurate monitoring even at low UV intensities.
Low Dark Current and Noise-Free Performance
The ultra-low dark current of 0.1 fA minimises background noise, ensuring strong signal-to-noise ratios. This enhances detection reliability in sensitive research and industrial applications.
Fast Response with Low Capacitance
The 7 pF capacitance supports fast response times, essential for real-time monitoring applications such as flame detection and UV curing.
Rugged Dual-Lead Package
The dual-lead configuration enhances mounting durability and mechanical stability, making it suitable for industrial environments and long-term monitoring systems.
Thermal and Environmental Endurance
Operating across −55 °C to +170 °C, the SG01D-5 withstands extreme thermal and environmental stresses, making it reliable in aerospace, defence, and outdoor monitoring.
Long-Term Stability
Resistant to UV degradation, the SG01D-5 ensures consistent responsivity over years of exposure, lowering maintenance and replacement costs.
In summary, the SG01D-5 provides compact design, reliability, fast response, and long-term operational stability, making it a trusted UV detector across industrial, scientific, and aerospace applications.
Applications Across Industries
Environmental Monitoring
The SG01D-5 is applied in solar UV studies, ozone concentration monitoring, and atmospheric research. Its visible blindness ensures accurate datasets essential for climate science and environmental safety.
Industrial Flame Detection
The photodiode is used in flame detection systems in refineries, energy stations, and factories. Its fast response allows early hazard detection, enhancing plant safety.
Medical and Laboratory Applications
It is employed in sterilisation validation, UV dosimetry, and calibration of phototherapy systems. Its accuracy makes it a trusted tool for laboratories and healthcare equipment monitoring.
UV Curing in Manufacturing
In printing, adhesive bonding, and coatings, the SG01D-5 provides reliable UV curing process monitoring, ensuring consistency, higher quality, and operational efficiency.
Photonics and Semiconductor Research
Laboratories use the SG01D-5 to test UV-sensitive materials and develop photonic devices. Its compact design makes it highly adaptable in experimental setups.
Aerospace and Defence
The dual-lead package enhances stability under vibration and harsh conditions, making the SG01D-5 suitable for aerospace UV sensing, arc detection, and military-grade monitoring applications.
By combining compactness, sensitivity, and rugged packaging, the SG01D-5 is a versatile broadband UV photodiode for diverse industries.
Why Choose United Spectrum Instruments?
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Authorised distributor of SGLUX UV photodiodes in India
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Competitive pricing with reliable local inventory for quick delivery
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Expert technical consultation tailored to research and industrial needs
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Pan-India service, training, and after-sales support
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Trusted supplier to universities, defence labs, and industrial organisations
FAQs
What is the active area of the SG01D-5?
It features a compact 0.03 mm² active area.
What is the peak responsivity value?
The photodiode provides 0.13 A/W at 280 nm.
What is the advantage of the dual-lead package?
It enhances mounting durability and mechanical robustness for long-term reliability.
What applications is it suited for?
It is used in flame detection, UV curing, ozone monitoring, sterilisation validation, and aerospace sensing.
How does United Spectrum support Indian customers?
United Spectrum ensures fast delivery, expert consultation, and comprehensive after-sales service across India.
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FAQs
What is the active area of the SG01D-5?
It features a compact 0.03 mm² active area.
What is the peak responsivity value?
The photodiode provides 0.13 A/W at 280 nm.
What is the advantage of the dual-lead package?
It enhances mounting durability and mechanical robustness for long-term reliability.
What applications is it suited for?
It is used in flame detection, UV curing, ozone monitoring, sterilisation validation, and aerospace sensing.
How does United Spectrum support Indian customers?
United Spectrum ensures fast delivery, expert consultation, and comprehensive after-sales service across India.
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