Broadband UV Photodiode – SG01L-SMD
The SG01L-SMD is a Silicon Carbide (SiC) broadband UV photodiode designed in a surface-mount device (SMD) package for easy PCB integration and space-efficient designs. Featuring...
Broadband UV Photodiode – SG01L-SMD
Surface-Mount Large-Area UV Photodiode for Compact Integration, High Sensitivity, and Reliable Industrial Performance
The SG01L-SMD is a Silicon Carbide (SiC) broadband UV photodiode designed in a surface-mount device (SMD) package for easy PCB integration and space-efficient designs. Featuring a large 1 mm² active area, it delivers superior photon capture and strong signal output, making it highly suitable for low-intensity UV detection. With a peak responsivity of 0.160 A/W at 280 nm and coverage from 221–358 nm, it ensures precise UV-only detection with excellent visible blindness. The surface-mount design simplifies automated assembly, enabling cost-effective production of compact UV sensor modules. With ultra-low dark current (0.2 fA) and capacitance (120 pF), the SG01L-SMD balances sensitivity with stability. Operating across −55 °C to +170 °C, it is ideal for harsh environments requiring long-term reliability. Applications include solar UV monitoring, sterilisation validation, flame detection, UV curing, and aerospace systems. The SG01L-SMD provides compactness, ruggedness, and performance for modern electronic and industrial applications.
Understanding Broadband UV Photodiode - SG01L-SMD
The SG01L-SMD is a surface-mount UV photodiode designed for efficient PCB-level integration. Built with Silicon Carbide, it achieves accurate UV detection in the 221–358 nm range, with a responsivity peak of 0.160 A/W at 280 nm. Its 1 mm² large active area ensures high sensitivity, while its surface-mount format enables compact, automated, and scalable sensor module production. The device features ultra-low dark current (0.2 fA) and capacitance (120 pF), offering reliable performance with minimal noise. With thermal stability from −55 °C to +170 °C, the SG01L-SMD is suited for portable devices, embedded systems, and industrial environments requiring UV-only sensing.
Technical Specifications
| Feature | Specification |
| Typical Responsivity at Peak Wavelength | 0.160 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 | 1.00 mm² |
| Dark Current (1 V reverse bias) | 0.2 fA |
| Capacitance | 120 pF |
| Short Circuit (10 mW/cm² at peak) | 16 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
Surface-Mount Design for Easy Integration
The SG01L-SMD is built in an SMD package, making it highly compatible with automated PCB assembly and compact device manufacturing. This allows efficient integration into electronic circuits and scalable production.
Large Active Area for High Sensitivity
With a 1 mm² active area, the device captures more photons, providing stronger photocurrent and reliable detection in low-intensity UV environments.
Selective UV Detection with SiC Technology
The Silicon Carbide construction ensures selective responsivity across 221–358 nm with peak efficiency at 280 nm, while rejecting visible and infrared interference.
High Responsivity and Strong Output
At 0.160 A/W peak responsivity, the SG01L-SMD provides stable and accurate UV detection suitable for industrial, research, and environmental monitoring.
Low Dark Current and Stable Performance
An ultra-low dark current of 0.2 fA ensures noise-free operation, while its 120 pF capacitance supports stable readings in large-area applications.
Thermal Stability and Durability
Operating reliably from −55 °C to +170 °C, the device is rugged enough for aerospace, defence, and industrial safety applications.
Long-Term Operational Reliability
The SG01L-SMD resists UV degradation, ensuring stable responsivity over prolonged operation, reducing downtime and replacement costs.
The SG01L-SMD is a compact, scalable, and high-performance photodiode for modern electronic and industrial UV sensing systems.
Applications Across Industries
Environmental Monitoring
The SG01L-SMD is ideal for solar UV monitoring, ozone studies, and climate research. Its large active area ensures accurate detection even under low-light conditions.
Industrial Flame Detection
The SMD format allows seamless integration into flame monitoring circuits for refineries, power plants, and manufacturing facilities. Its fast response enhances safety and hazard prevention.
Medical and Laboratory Applications
It supports sterilisation control, UV dosimetry, and calibration of medical devices. Its compact SMD design makes it well-suited for portable lab and clinical systems.
UV Curing and Manufacturing
The SG01L-SMD monitors UV curing in printing, adhesives, and coatings, ensuring consistent process control and improved product quality.
Photonics and Semiconductor Research
The device is widely used in R&D for UV-sensitive materials and photonic device development. Its surface-mount design facilitates integration into complex multi-sensor systems.
Aerospace and Defence
Its wide thermal range and rugged construction make the SG01L-SMD suitable for aerospace UV detection, arc monitoring, and defence-grade sensors.
By combining SMD design, large-area sensitivity, and UV selectivity, the SG01L-SMD is a versatile and scalable UV detector across industries.
Why Choose United Spectrum Instruments?
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Authorised distributor of SGLUX UV photodiodes in India
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Local stock ensures reduced lead times and fast delivery
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Application-specific consultation for research and industrial projects
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Pan-India after-sales service, training, and integration support
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Trusted supplier for universities, defence organisations, and industrial R&D facilities
FAQs
What makes the SG01L-SMD unique?
Its surface-mount design allows easy integration into compact and automated PCB-based systems.
What is the active area size?
It features a large 1 mm² active area for higher sensitivity.
What is its responsivity at peak wavelength?
It achieves 0.160 A/W at 280 nm.
Can it be used in extreme environments?
Yes, it operates reliably from −55 °C to +170 °C.
How does United Spectrum support Indian customers?
United Spectrum ensures fast delivery, expert advice, and nationwide after-sales service.
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FAQs
What makes the SG01L-SMD unique?
Its surface-mount design allows easy integration into compact and automated PCB-based systems.
What is the active area size?
It features a large 1 mm² active area for higher sensitivity.
What is its responsivity at peak wavelength?
It achieves 0.160 A/W at 280 nm.
Can it be used in extreme environments?
Yes, it operates reliably from −55 °C to +170 °C.
How does United Spectrum support Indian customers?
United Spectrum ensures fast delivery, expert advice, and nationwide after-sales service.
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