Broadband UV Photodiode – SG01S-18D
The SG01S-18D is a high-performance Silicon Carbide (SiC) UV photodiode designed for precise ultraviolet detection across research, industrial, and environmental applications. Featuring a 0.06 mm²...
Broadband UV Photodiode – SG01S-18D
High-Precision Silicon Carbide UV Detector for Flame Monitoring, UV Curing, Environmental, Medical and Aerospace
The SG01S-18D is a high-performance Silicon Carbide (SiC) UV photodiode designed for precise ultraviolet detection across research, industrial, and environmental applications. Featuring a 0.06 mm² active area, low dark current, and excellent visible blindness, it ensures interference-free UV measurements. The device operates effectively within a responsivity range of 221–358 nm, peaking at 280 nm, making it ideal for flame detection, UV curing, solar monitoring, and ozone research. Engineered for robust performance, the SG01S-18D delivers long-term stability, minimal noise, and resilience under extreme temperatures. Its compact and reliable design ensures seamless integration into instruments demanding consistent and accurate UV sensing.
Understanding Broadband UV Photodiode - SG01S-18D
The SG01S-18D UV photodiode is built using advanced Silicon Carbide (SiC) technology, enabling selective ultraviolet detection with superior visible blindness. Unlike conventional silicon detectors, it ensures precise measurement in the UV spectrum without interference from visible or infrared light. With ultra-low dark current and high signal-to-noise characteristics, it guarantees dependable operation even at low light intensities. Its 0.06 mm² active area offers a balance between sensitivity and integration flexibility. Designed for harsh environments, it operates across a wide thermal range (−55 °C to +170 °C). The SG01S-18D is a trusted choice for accurate, stable, and long-life UV detection.
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 | 0.06 mm² |
| Dark Current (1 V reverse bias) | 0.2 fA |
| Capacitance | 15 pF |
| Short Circuit (10 mW/cm² at peak) | 960 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
Advanced UV Detection
The SG01S-18D leverages Silicon Carbide (SiC) semiconductor material, offering excellent UV responsivity while rejecting visible and infrared light. This property ensures accurate and interference-free ultraviolet signal detection, which is crucial for precision applications.
High Sensitivity and Low Noise
With a peak responsivity of 0.160 A/W at 280 nm and ultra-low dark current of 0.2 fA, the SG01S-18D guarantees high signal-to-noise ratios. This makes it reliable even for low-intensity UV detection, supporting accurate readings under challenging conditions.
Compact and Durable Design
Its 0.06 mm² active area balances integration flexibility and detection performance. The rugged design ensures long-term durability, enabling stable operations in industrial and research systems that demand 24/7 reliability.
Thermal and Environmental Resilience
Capable of operating across −55 °C to +170 °C, the SG01S-18D is ideal for environments subject to extreme temperature fluctuations, including aerospace systems, outdoor monitoring stations, and industrial process lines.
Stable Long-Term Performance
Built to resist UV degradation, the photodiode maintains performance over prolonged periods of exposure. This reduces downtime, enhances operational efficiency, and assures predictable outcomes in mission-critical environments.
In short, the SG01S-18D is distinguished by high responsivity, low noise, ruggedness, and extreme stability, making it a preferred UV detection choice.
Applications Across Industries
Environmental Monitoring
The SG01S-18D is used in solar UV radiation analysis, ozone monitoring, and atmospheric studies. Its visible blindness ensures pure UV readings, making it indispensable for climate research and pollution tracking.
Industrial Flame Detection
In petrochemical plants, refineries, and power stations, the photodiode ensures quick detection of flames through UV signatures. Its speed and precision enhance safety protocols and protect equipment and personnel.
Medical and Laboratory Use
This device enables reliable UV dosimetry, sterilisation validation, and calibration of medical and phototherapy devices. Its precision ensures compliance with health and safety requirements.
UV Curing and Manufacturing
Manufacturers in printing, adhesives, and coatings use the SG01S-18D to monitor UV curing systems. The device ensures uniform exposure and high-quality production by providing accurate UV intensity feedback.
Photonics and Semiconductor R&D
Research labs apply the photodiode for UV-sensitive semiconductor characterisation and photonics device testing. Its reliability supports innovation in optical instruments and advanced sensor systems.
Aerospace and Defence
The photodiode’s rugged design and extreme thermal tolerance make it suitable for aerospace applications, including arc detection, solar UV measurement, and defence-grade sensing technologies.
By covering such wide-ranging applications, the SG01S-18D is a dependable solution for industries and institutions requiring precise UV detection.
Why Choose United Spectrum Instruments?
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Official distributor of SGLUX UV photodiodes in India
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Competitive pricing with reliable local inventory and fast delivery
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Technical expertise for integration into R&D and industrial applications
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Comprehensive pan-India after-sales service and training support
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Trusted by academia, industry, and government research institutions
FAQs
What wavelength range does the SG01S-18D cover?
It covers 221–358 nm with peak responsivity at 280 nm.
How does this photodiode differ from standard detectors?
It uses SiC technology for UV-specific detection and visible blindness.
Can the SG01S-18D withstand extreme environments?
Yes, it operates reliably between −55 °C and +170 °C.
What support does United Spectrum provide in India?
United Spectrum ensures local stock, fast delivery, consultation, and after-sales support.
What are the main applications of SG01S-18D?
It is used in flame detection, UV curing, environmental monitoring, medical, aerospace, and research applications.
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FAQs
What wavelength range does the SG01S-18D cover?
It covers 221–358 nm with peak responsivity at 280 nm.
How does this photodiode differ from standard detectors?
It uses SiC technology for UV-specific detection and visible blindness.
Can the SG01S-18D withstand extreme environments?
Yes, it operates reliably between −55 °C and +170 °C.
What support does United Spectrum provide in India?
United Spectrum ensures local stock, fast delivery, consultation, and after-sales support.
What are the main applications of SG01S-18D?
It is used in flame detection, UV curing, environmental monitoring, medical, aerospace, and research applications.
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