Broadband UV Photodiode – SG01M-18S
The SG01M-18S is a broadband UV photodiode based on Silicon Carbide (SiC) technology, designed for precise ultraviolet detection in a durable metal housing. With a...
Broadband UV Photodiode – SG01M-18S
Metal-Packaged Silicon Carbide UV Photodiode for Stable, Precise Ultraviolet Detection in Industrial and Scientific Applications
The SG01M-18S is a broadband UV photodiode based on Silicon Carbide (SiC) technology, designed for precise ultraviolet detection in a durable metal housing. With a peak responsivity of 0.160 A/W at 280 nm and a detection range from 221–358 nm, it ensures accurate UV monitoring while providing excellent visible blindness. The compact 0.06 mm² active area delivers a balanced design for sensitivity and integration flexibility. Its ultra-low dark current of 0.2 fA and 15 pF capacitance guarantee high signal-to-noise performance, even under low UV intensities. The robust metal package improves thermal stability and mechanical durability, supporting continuous operation across extreme conditions ranging from −55 °C to +170 °C. With strong resistance to UV degradation, the SG01M-18S is ideal for flame detection, UV curing control, solar radiation monitoring, ozone research, photonics development, aerospace sensing, and medical sterilisation validation. It is engineered to deliver dependable, interference-free, long-term ultraviolet sensing.
Understanding Broadband UV Photodiode - SG01M-18S
The SG01M-18S combines Silicon Carbide (SiC) broadband UV detection technology with a rugged metal package, providing precise ultraviolet measurements in harsh industrial, scientific, and outdoor environments. Its peak sensitivity of 0.160 A/W at 280 nm, alongside excellent visible blindness, ensures clean and reliable UV signal detection. With a 0.06 mm² active area, ultra-low dark current, and stable capacitance, it provides low-noise, fast-response measurements. Its extended operating temperature range of −55 °C to +170 °C makes it resilient in aerospace and industrial applications. Long-term stability against UV degradation ensures predictable performance, making the SG01M-18S a trusted UV detector for mission-critical tasks.
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
Silicon Carbide Technology
The SG01M-18S is built using wide-bandgap Silicon Carbide, which enables high UV sensitivity while naturally rejecting visible and infrared wavelengths. This ensures precise UV-only detection, making it a highly selective sensor.
High Sensitivity with Low Noise
Offering a responsivity of 0.160 A/W at 280 nm, the photodiode is extremely efficient in UV detection. Combined with a dark current of only 0.2 fA, it provides a superior signal-to-noise ratio, even at weak UV intensities.
Rugged Metal Package
The robust metal housing enhances environmental durability and thermal stability. This packaging is ideal for industrial plants, aerospace systems, and laboratories where mechanical strength and long-term reliability are critical.
Compact and Flexible Integration
With an active area of 0.06 mm², the SG01M-18S is compact enough for integration into small systems, while still offering high sensitivity suitable for precision applications.
Temperature and Environmental Stability
The detector operates reliably from −55 °C to +170 °C, making it ideal for environments with extreme thermal variations. This performance is essential for outdoor monitoring and aerospace applications.
Long-Term Reliability
Resistant to UV degradation, the SG01M-18S offers stable performance over years of use, reducing maintenance costs and ensuring dependable outcomes in mission-critical systems.
Overall, the SG01M-18S combines precision, ruggedness, and stability, offering a trusted solution for advanced UV detection requirements across multiple industries.
Applications Across Industries
Environmental Monitoring
The SG01M-18S is applied in solar UV measurement, ozone monitoring, and atmospheric research. Its visible blindness ensures accurate readings, supporting climate analysis and pollution monitoring.
Industrial Flame Detection
Widely used in flame detection systems across power plants, refineries, and manufacturing facilities, the SG01M-18S provides rapid UV flame recognition, improving safety and reducing downtime in industrial environments.
Medical and Laboratory Applications
The detector is trusted in UV dosimetry, sterilisation validation, and phototherapy calibration. Its high sensitivity ensures compliance with health standards and reliable results in laboratory research.
UV Curing and Manufacturing
In UV curing for printing, adhesives, and coatings, the SG01M-18S ensures precise monitoring of UV intensity. It enhances product quality, efficiency, and process repeatability.
Photonics and Semiconductor R&D
Laboratories use the SG01M-18S to characterise UV-sensitive semiconductors and test photonic devices. Its stability supports development of next-generation optical sensors and instruments.
Aerospace and Defence
The rugged metal package and wide temperature tolerance make the SG01M-18S ideal for aerospace and defence. It enables UV sensing, arc detection, and mission-critical environmental monitoring in extreme conditions.
By delivering accurate UV sensing across such a wide spectrum of industries, the SG01M-18S establishes itself as a versatile and dependable broadband UV detector.
Why Choose United Spectrum Instruments?
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Official distributor of SGLUX UV photodiodes in India
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Competitive pricing with quick delivery from local stock
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Technical expertise for seamless integration into research and industry
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Full pan-India after-sales support, training, and service
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Trusted by leading universities, research labs, and industrial companies
FAQs
What makes the SG01M-18S different from standard photodiodes?
It uses SiC for UV-only detection and comes in a rugged metal package for durability.
What is the peak responsivity of the device?
The SG01M-18S achieves a peak responsivity of 0.160 A/W at 280 nm.
What industries use this photodiode?
It is used in flame detection, UV curing, aerospace, medical, environmental monitoring, and research.
Can it operate in harsh environments?
Yes, it functions reliably between −55 °C and +170 °C.
How does United Spectrum support customers in India?
United Spectrum provides local stock, fast delivery, expert consultation, and reliable after-sales service.
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FAQs
What makes the SG01M-18S different from standard photodiodes?
It uses SiC for UV-only detection and comes in a rugged metal package for durability.
What is the peak responsivity of the device?
The SG01M-18S achieves a peak responsivity of 0.160 A/W at 280 nm.
What industries use this photodiode?
It is used in flame detection, UV curing, aerospace, medical, environmental monitoring, and research.
Can it operate in harsh environments?
Yes, it functions reliably between −55 °C and +170 °C.
How does United Spectrum support customers in India?
United Spectrum provides local stock, fast delivery, expert consultation, and reliable after-sales service.
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