UVB+UVC Photodiode – SG01S-BC18
The SG01S-BC18 is a Silicon Carbide (SiC)-based broadband UV photodiode designed for high-precision ultraviolet detection across the full UV spectrum (UVA, UVB, and...
UVB+UVC Photodiode – SG01S-BC18
Broadband UV Photodiode for Reliable Detection in Industrial, Environmental, Medical, Scientific, and Aerospace Applications
The SG01S-BC18 is a Silicon Carbide (SiC)-based broadband UV photodiode designed for high-precision ultraviolet detection across the full UV spectrum (UVA, UVB, and UVC). With its 0.06 mm² active area, it provides compact yet highly sensitive performance, making it ideal for embedded and portable UV monitoring systems. Optimised for broad coverage, the SG01S-BC18 delivers reliable detection without interference from visible or infrared light, thanks to its inherent visible blindness. The photodiode achieves high signal quality with ultra-low dark current (0.2 fA) and a capacitance of 15 pF, ensuring stable, noise-free performance in a variety of UV measurement setups. Operating across extreme temperatures (−55 °C to +170 °C), the SG01S-BC18 is highly durable and suited for long-term use in challenging environments. Typical applications include disinfection monitoring, flame detection, solar UV index measurements, sterilisation systems, photonics research, and aerospace-grade UV sensing solutions.
Understanding UVB+UVC Photodiode - SG01S-BC18
The SG01S-BC18 is a compact broadband UV photodiode built on durable Silicon Carbide technology to cover UVA, UVB, and UVC detection. With its 0.06 mm² active area, it offers reliable UV detection where space-saving integration is required. Its broad responsivity range ensures coverage across multiple UV applications while maintaining strong selectivity by blocking visible and IR radiation. Featuring an ultra-low dark current of 0.2 fA and low capacitance of 15 pF, it provides stable and noise-free readings. Capable of withstanding −55 °C to +170 °C, the SG01S-BC18 is suitable for industrial, medical, scientific, and aerospace-grade broadband UV detection tasks.
Technical Specifications
| Feature | Specification |
| Spectral Range (Broadband UV) | 200 … 400 nm |
| Peak Responsivity | 0.12 A/W (typical) |
| Visible Blindness | > 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 |
| Maximum Reverse Voltage | 20 V |
Key Features and Advantages
Broadband UV Responsivity
The SG01S-BC18 covers UVA, UVB, and UVC wavelengths (200–400 nm), making it a versatile detector for multiple ultraviolet applications.
Compact Active Area
With a 0.06 mm² active area, the photodiode is suitable for compact instruments, portable devices, and embedded UV monitoring systems.
Visible Blindness for Pure UV Measurement
Its Silicon Carbide construction ensures complete rejection of visible and IR light, enabling precise UV-only monitoring.
High Signal Accuracy
The ultra-low dark current (0.2 fA) ensures stable, low-noise signals for consistent UV measurement accuracy.
Fast Response Time
With a capacitance of 15 pF, it supports rapid response for real-time UV monitoring applications.
Durability in Harsh Environments
Its operating range from −55 °C to +170 °C allows reliable performance in industrial, aerospace, and outdoor environments.
Long-Term Stability
Resistant to UV degradation, the SG01S-BC18 offers dependable long-term operation with minimal recalibration requirements.
In summary, the SG01S-BC18 combines broadband UV coverage, compact size, and rugged reliability, making it a trusted detector for industries requiring UVA, UVB, and UVC detection.
Applications Across Industries
Industrial UV Monitoring
The SG01S-BC18 is used in UV curing, sterilisation, and disinfection systems, ensuring accurate broadband UV intensity monitoring.
Medical and Healthcare
It supports UV sterilisation control, phototherapy calibration, and medical UV exposure monitoring, enabling safe and precise applications.
Environmental and Solar Studies
The photodiode is applied in UV index monitoring, atmospheric research, and climate studies, providing long-term outdoor broadband UV measurements.
Laboratory and Scientific Research
Researchers use the SG01S-BC18 for photonics, materials science, and semiconductor testing where full UV spectrum monitoring is required.
Aerospace and Defence
Its rugged construction and thermal endurance make it suitable for UV sensing in aerospace systems, flame detection, and defence monitoring.
Workplace and Consumer Safety
The SG01S-BC18 can be integrated into exposure monitoring systems to ensure worker and consumer safety in UV applications.
By offering broad coverage, compact design, and durable reliability, the SG01S-BC18 is a versatile photodiode for UV detection across industries.
Why Choose United Spectrum Instruments?
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Exclusive distributor of SGLUX UV photodiodes in India
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Local stock ensures fast delivery and reduced lead times
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Competitive pricing for industry, medical, research, and defence sectors
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Expert consultation for application-specific integration
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Nationwide after-sales service, training, and technical support
FAQs
What is the spectral detection range of the SG01S-BC18?
It covers the full UV range from 200–400 nm (UVA, UVB, UVC).
What is the active area size?
The photodiode has a compact 0.06 mm² active area.
How does United Spectrum add value for Indian customers?
By providing fast delivery, expert consultation, and nationwide technical service.
Does it block visible and IR light?
Yes, it has excellent visible blindness (>10¹⁰), ensuring pure UV detection.
Can it be used in extreme environments?
Yes, it operates reliably from −55 °C to +170 °C.
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FAQs
What is the spectral detection range of the SG01S-BC18?
It covers the full UV range from 200–400 nm (UVA, UVB, UVC).
What is the active area size?
The photodiode has a compact 0.06 mm² active area.
How does United Spectrum add value for Indian customers?
By providing fast delivery, expert consultation, and nationwide technical service.
Does it block visible and IR light?
Yes, it has excellent visible blindness (>10¹⁰), ensuring pure UV detection.
Can it be used in extreme environments?
Yes, it operates reliably from −55 °C to +170 °C.
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