UVB+UVC Photodiode – SG01M-BC18
The SG01M-BC18 is a Silicon Carbide (SiC)-based broadband UV photodiode engineered for precise detection across the full ultraviolet spectrum (200–400 nm, covering UVA, UVB, and...
UVB+UVC Photodiode – SG01M-BC18
Medium-Area Broadband UV Photodiode for Accurate Industrial, Medical, Environmental, Aerospace, and Scientific Monitoring
The SG01M-BC18 is a Silicon Carbide (SiC)-based broadband UV photodiode engineered for precise detection across the full ultraviolet spectrum (200–400 nm, covering UVA, UVB, and UVC). With a medium-sized 0.2 mm² active area, it balances compact design with enhanced sensitivity, producing stronger photocurrents than small-area detectors while remaining easy to integrate into industrial, medical, and research systems. Its visible blindness ensures interference-free UV detection, rejecting visible and infrared radiation for pure broadband UV monitoring. Offering a peak responsivity of 0.12 A/W, ultra-low dark current (0.1 fA), and capacitance of 10 pF, the SG01M-BC18 delivers noise-free, stable measurements with fast response times. Designed for demanding environments, it operates across a wide temperature range (−55 °C to +170 °C), ensuring reliability in industrial and aerospace applications. Typical uses include sterilisation validation, UV curing, flame detection, solar radiation monitoring, workplace safety, and scientific photonics research.
Understanding UVB+UVC Photodiode - SG01M-BC18
The SG01M-BC18 is a medium-area broadband UV photodiode designed for high-precision monitoring across UVA, UVB, and UVC. Covering 200–400 nm, it provides reliable broadband UV detection with peak responsivity at 0.12 A/W while ensuring complete rejection of visible and IR radiation. Its 0.2 mm² active area offers stronger photocurrents compared to compact models, making it effective in applications requiring higher sensitivity without sacrificing integration flexibility. With ultra-low dark current (0.1 fA) and 10 pF capacitance, it guarantees clean, noise-free, and fast response. Rugged SiC construction enables stable operation across −55 °C to +170 °C, making it suitable for industrial, aerospace, medical, and environmental applications.
Technical Specifications
| Feature | Specification |
| Spectral Range (Broadband UV) | 200 … 400 nm |
| Peak Responsivity | 0.12 A/W (typical) |
| Visible Blindness | > 10¹⁰ |
| Active Area | 0.2 mm² |
| Dark Current (1 V reverse bias) | 0.1 fA |
| Capacitance | 10 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 |
| Maximum Reverse Voltage | 20 V |
Key Features and Advantages
Broadband UV Responsivity
The SG01M-BC18 detects across UVA, UVB, and UVC (200–400 nm), making it versatile for full-spectrum UV monitoring applications.
Medium Active Area for Balanced Sensitivity
Its 0.2 mm² active area enhances photon capture, delivering stronger photocurrents compared to compact detectors while remaining suitable for portable and embedded devices.
Visible Blindness for Accurate Detection
SiC construction ensures high rejection of visible and IR light, guaranteeing accurate UV-only detection.
Superior Signal Quality
An ultra-low dark current of 0.1 fA ensures stability and low-noise signals in critical UV measurements.
Fast Response Speed
With capacitance of 10 pF, it supports rapid response times required in real-time industrial monitoring and research applications.
Durability and Temperature Stability
Operating between −55 °C and +170 °C, the SG01M-BC18 performs reliably under extreme industrial, aerospace, and outdoor conditions.
Long-Term Reliability
Silicon Carbide construction ensures resistance to UV degradation, maintaining calibration stability over long service life.
By combining broadband coverage, medium-area sensitivity, and rugged reliability, the SG01M-BC18 is an excellent choice for industries demanding full-spectrum UV monitoring.
Applications Across Industries
Industrial UV Monitoring
The SG01M-BC18 is widely used in UV curing, sterilisation, and disinfection systems to monitor broadband UV output with precision.
Medical and Healthcare Applications
It ensures accurate broadband UV detection in sterilisation, phototherapy systems, and UVA/UVB/UVC dosimetry.
Environmental and Solar Monitoring
The photodiode supports solar UV index studies, atmospheric research, and broadband radiation monitoring in outdoor conditions.
Scientific and Laboratory Research
Its broadband sensitivity makes it valuable for photonics, materials science, and semiconductor research requiring complete UV spectrum analysis.
Aerospace and Defence
The SG01M-BC18 is applied in flame detection, arc sensing, and aerospace UV monitoring, withstanding extreme environments.
Workplace and Consumer Safety
It can be integrated into devices to monitor occupational UV exposure, ensuring compliance with safety regulations.
By combining broadband UV detection, reliability, and sensitivity, the SG01M-BC18 serves diverse applications across industries.
Why Choose United Spectrum Instruments?
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Official distributor of SGLUX UV photodiodes in India
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Local stock ensures quick delivery and reduced lead times
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Competitive pricing for industry, academia, and defence applications
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Application-specific consultation for tailored integration
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Pan-India technical service, training, and after-sales support
FAQs
What is the spectral range of the SG01M-BC18?
It covers 200–400 nm, including UVA, UVB, and UVC.
What is the active area size?
It features a 0.2 mm² active area for balanced sensitivity.
Does it reject visible and IR light?
Yes, with visible blindness >10¹⁰, it ensures pure UV detection.
Can it be used in extreme environments?
Yes, it operates from −55 °C to +170 °C reliably.
How does United Spectrum add value in India?
By providing local stock, fast delivery, expert advice, and nationwide service.
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FAQs
What is the spectral range of the SG01M-BC18?
It covers 200–400 nm, including UVA, UVB, and UVC.
What is the active area size?
It features a 0.2 mm² active area for balanced sensitivity.
Does it reject visible and IR light?
Yes, with visible blindness >10¹⁰, it ensures pure UV detection.
Can it be used in extreme environments?
Yes, it operates from −55 °C to +170 °C reliably.
How does United Spectrum add value in India?
By providing local stock, fast delivery, expert advice, and nationwide service.
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