UVB+UVC Photodiode – SG01L-BC18
The SG01L-BC18 is a Silicon Carbide (SiC)-based broadband UV photodiode designed for precise detection across the full UV spectrum (200–400 nm, including UVA, UVB, and...
UVB+UVC Photodiode – SG01L-BC18
Large-Area Broadband UV Photodiode for High-Sensitivity Industrial, Environmental, Medical, Aerospace, and Scientific Applications
The SG01L-BC18 is a Silicon Carbide (SiC)-based broadband UV photodiode designed for precise detection across the full UV spectrum (200–400 nm, including UVA, UVB, and UVC). With a large 1.0 mm² active area, it provides superior sensitivity and strong photocurrents, making it particularly effective in low-intensity UV environments or wide-beam monitoring setups. Featuring a peak responsivity of 0.12 A/W, ultra-low dark current (0.2 fA), and capacitance of 50 pF, the SG01L-BC18 ensures noise-free performance and reliable accuracy. Built for rugged conditions, it offers complete visible blindness, rejecting IR and visible light for pure UV detection. Operating across a wide temperature range (−55 °C to +170 °C), it guarantees stability in demanding industrial, environmental, aerospace, and research applications. Typical uses include sterilisation validation, solar UV monitoring, flame detection, photonics research, and UV curing control. The SG01L-BC18 combines large-area sensitivity, rugged design, and broadband coverage for mission-critical UV monitoring.
Understanding UVB+UVC Photodiode - SG01L-BC18
The SG01L-BC18 is a large-area broadband photodiode optimised for UV detection between 200–400 nm, covering UVA, UVB, and UVC with peak responsivity at 330 nm. Its 1.0 mm² active area provides enhanced photon capture and high photocurrent output, delivering superior sensitivity in low-intensity or wide-field UV applications. Constructed with Silicon Carbide, it ensures visible blindness for pure UV detection without IR or visible interference. With ultra-low dark current (0.2 fA) and capacitance of 50 pF, it offers stable, noise-free signals and quick responsiveness. Reliable from −55 °C to +170 °C, the SG01L-BC18 is suited for industrial, aerospace, medical, and research applications.
Technical Specifications
| Feature | Specification |
| Spectral Range (Broadband UV) | 200 … 400 nm |
| Peak Responsivity | 0.12 A/W (typical) |
| Visible Blindness | > 10¹⁰ |
| Active Area | 1.0 mm² |
| Dark Current (1 V reverse bias) | 0.2 fA |
| Capacitance | 50 pF |
| Short Circuit (10 mW/cm² at peak) | 4.8 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
Broadband UV Responsivity
The SG01L-BC18 covers UVA, UVB, and UVC (200–400 nm), offering reliable broadband UV detection for multipurpose applications.
Large Active Area for Maximum Sensitivity
With its 1.0 mm² active area, the photodiode provides superior photon capture and strong photocurrent output, making it ideal for low-intensity UV environments.
High Signal Purity
Its visible blindness ensures that only UV is detected, eliminating interference from visible and infrared radiation.
Stable and Noise-Free Signals
Ultra-low dark current of 0.2 fA guarantees clean, noise-free signals even in demanding UV monitoring environments.
Fast Response Capability
A capacitance of 50 pF allows reliable and stable responses, supporting real-time UV detection in industrial and scientific systems.
Durable for Harsh Environments
Operating across −55 °C to +170 °C, it delivers consistent performance in aerospace, defence, and industrial applications.
Long-Term Reliability
Its Silicon Carbide construction ensures resistance to UV degradation, maintaining calibration and reducing maintenance needs over years of operation.
The SG01L-BC18 offers superior sensitivity, broadband coverage, and rugged reliability, making it a trusted detector for demanding UV measurement tasks.
Applications Across Industries
Industrial UV Systems
The SG01L-BC18 is used in UV curing, sterilisation, and disinfection systems, enabling accurate broadband UV monitoring for consistent quality control.
Medical and Healthcare
It supports sterilisation validation, phototherapy calibration, and UV dosimetry, ensuring precise UV exposure monitoring in healthcare environments.
Environmental and Solar Research
The photodiode is applied in solar UV index studies, atmospheric science, and outdoor broadband UV monitoring.
Laboratory and Photonics Research
Its broadband detection range makes it suitable for materials research, semiconductor testing, and photonics experiments requiring full UV spectrum measurement.
Aerospace and Defence
Its rugged construction and wide operating temperature range make it effective for flame detection, arc sensing, and aerospace-grade UV monitoring.
Workplace Safety Applications
The SG01L-BC18 can be integrated into occupational exposure monitoring systems, ensuring worker protection from harmful UV radiation.
By combining broadband responsivity, large-area sensitivity, and rugged design, the SG01L-BC18 is a reliable choice for mission-critical UV detection applications.
Why Choose United Spectrum Instruments?
-
Exclusive distributor of SGLUX UV photodiodes in India
-
Local inventory ensures reduced lead times and quick delivery
-
Competitive pricing for industrial, medical, and research clients
-
Application-specific consultation and integration support
-
Nationwide after-sales service, training, and technical assistance
FAQs
What spectral range does the SG01L-BC18 cover?
It detects broadband UV between 200–400 nm (UVA, UVB, UVC).
What is the active area of the SG01L-BC18?
It has a 1.0 mm² active area for high sensitivity.
Does it block visible and infrared light?
Yes, with visible blindness >10¹⁰, it ensures pure UV-only detection.
Can it be used in harsh environments?
Yes, it operates reliably between −55 °C and +170 °C.
How does United Spectrum support Indian customers?
By offering fast delivery, competitive pricing, and nationwide technical service.
GET IN TOUCH WITH US
Have a Project in Mind ? Let’s Talk
FAQs
What spectral range does the SG01L-BC18 cover?
It detects broadband UV between 200–400 nm (UVA, UVB, UVC).
What is the active area of the SG01L-BC18?
It has a 1.0 mm² active area for high sensitivity.
Does it block visible and infrared light?
Yes, with visible blindness >10¹⁰, it ensures pure UV-only detection.
Can it be used in harsh environments?
Yes, it operates reliably between −55 °C and +170 °C.
How does United Spectrum support Indian customers?
By offering fast delivery, competitive pricing, and nationwide technical service.
WHAT WE OFFER
Reliable Engineering Solutions for Modern Manufacturing
Imaging Cameras & Wavefront Sensors
Laser Sources
Dust & Fume Extractors
Industrial Laser Systems
Optical Communication Systems
Optical Sensors & Detectors
