Seoul Viosys UVB LED 310nm CUD1GF1A
Product Details Description
The Seoul Viosys CUD1GF1A is a 310nm uvb led for deep ultraviolet light-source applications that require small size, SMT assembly, and UVB light-output. This LED has 0.12W power, 6.1V voltage, 20mA current, 1.5mW radiant power, and 120° view angle. This uvb led is suitable for use in disinfection, fluorescent spectroscopy, chemical analysis, and biological analysis applications.
This uvb led has peak emission wavelengths from 305nm to 315nm. The 310nm output is in the UVB range and differs from 365nm, 385nm, and 395nm UVA LEDs. It is intended for special devices and engineered modules but not for general blacklight, visual inspection, and consumer flashlight applications.
The CUD1GF1A is sealed in a ceramic package including an optical transparent window. It has state-of-the-art SMD design and low thermal resistance. Its 3.5 x 3.5mm size makes easy designing of compact UVB LED modules, prototype boards, test fixtures, and analytical light-source assemblies.
For fluorescent spectroscopy, this uvb led can be used as a compact 310nm excitation source in optical paths, sample chambers, or instrument modules. The final performance depends on optical window material, sample type, exposure distance, lens or chamber design, driver current, thermal environment, and signal level.
For chemical and biological analysis, the CUD1GF1A can be included in test equipment, sensing devices, laboratory fixtures, or board-level deep UV modules. Because UVB output is application-dependent, engineers have to validate irradiance, beam distribution, sample compatibility, and thermal environment inside the system.
The listed application field includes disinfection. For disinfection applications, this uvb led should be used only inside specially designed system with sufficient shielding and system-level validation. The final disinfection result depends on UV dose, exposure time, LED quantity, distance, chamber geometry, target organism, and safety design.
For OEM and ODM projects, the CUD1GF1A can be mounted on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB boards. Aluminum PCB can be used for various compact module designs, while copper PCB can be used if strong thermal transfer is required. The product can be supplied as a component or assembled into custom-made LED modules.
Despite the operating current is only 20mA, thermal and electrical designs are important. A proper constant-current driver, correct soldering process, stable PCB design, and protection against electrical overstress should be used. Engineers have to validate radiant output, board temperature, optical transmission, and application performance before mass-production.
This product is a component-level uvb led, not a complete lamp. A finished device should include a driver circuit, PCB board, housing, optical window, shielding, wiring, connector, warning label, and safety interlock if needed. The CUD1GF1A should not be used in open-exposure products without proper UVB safety design.
UVB radiation is harmful for eyes and skin. It is forbidden to look directly at the operating LED. Skin exposure is forbidden. Protective eyewear, shielding, interlocks, warning labels, and safe procedures have to be used during testing, assembly, and operation.
Specifications
Brand: Seoul Viosys
Model NO.: CUD1GF1A
Wavelength: 310nm
Size: 3.5 x 3.5mm
Power: 0.12W
Voltage: 6.1V
Current: 20mA
Radiant Power: 1.5mW
View Angle: 120°
PCB Options: Can be welded on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB board
Service: OEM ODM service for LED modules
Features and Benefits
Deep ultraviolet LED
Low thermal resistance
SMT solderable
Lead free product
RoHS compliant
Ceramic package with optical transparent window
Compact 3.5 x 3.5mm package
Suitable for UVB LED module assembly
Key Applications
Disinfection
Fluorescent Spectroscopy
Chemical and Biological Analysis
FAQ
What is this uvb led used for?
This uvb led is used for disinfection, fluorescent spectroscopy, chemical analysis, and biological analysis when integrated into a properly designed module or finished device.
Is CUD1GF1A a Seoul Viosys UVB LED?
Yes. CUD1GF1A is a Seoul Viosys deep ultraviolet LED with 310nm wavelength and peak emission wavelengths from 305nm to 315nm.
What wavelength does this LED use?
The CUD1GF1A uses 310nm wavelength belonging to the UVB range.
What is the radiant power?
The radiant power is 1.5mW.
What is the electrical power?
The power is 0.12W.
What is the voltage?
The voltage is 6.1V.
What is the operating current?
The operating current is 20mA.
What is the package size?
The package size is 3.5 x 3.5mm.
What is the view angle?
The view angle is 120°, providing a wide deep UV emission pattern for compact module designs.
What package does this LED use?
The LED is sealed in a ceramic package including an optical transparent window.
Can this LED be mounted on PCB boards?
Yes. It can be welded on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB boards depending on the final module design.
Do you provide OEM or ODM UVB LED modules?
Yes. OEM and ODM services are provided for LED modules, UVB light-source boards, fluorescent spectroscopy modules, analytical fixtures, and customized deep UV LED assemblies.
Can this product be used for disinfection?
It may be used in disinfection-related equipment, but its final performance has to be validated at the complete system level. Disinfection depends on UV dose, exposure time, LED quantity, distance, chamber design, target organism, and safety structure.
Is this UVB LED suitable for open handheld use?
No. This is a UVB / deep UV LED component. Open exposure is hazardous for eyes and skin. A finished product should include shielding, warning labels, safety structure, and proper operating instructions.
Is it safe to look directly at this UVB LED?
No. Never look directly at the operating UVB LED. Avoid skin exposure and use protective eyewear, shielding, warning labels, interlocks, and safe working procedures.



























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