uv diodes Seoul Viosys UVA 365nm CUN66A1F
Product Details Description
The Seoul Viosys CUN66A1F is a 365nm UV-A LED diode designed for compact UV applications that require stable output, wide beam coverage, and practical module integration. With 420mW radiant power, 3.6V voltage, 250mA current, and a 120° view angle, it is a suitable option for manufacturers developing UV curing tools, printing systems, detection lamps, insect trap light sources, UV torches, and custom UV LED modules.
These uv diodes belong to the Seoul Viosys Z5 near-UV LED series. The product uses a 3.5 x 3.5 x 2.0mm SMD package and low thermal resistant material, helping engineers build compact UV modules with efficient board-level assembly. The 365nm wavelength is often selected for fluorescence response, curing tests, detection, and UV-reactive applications where lower visible purple interference is preferred.
For UV curing and printing, the CUN66A1F can be used in small exposure heads, adhesive response tests, coating inspection tools, and compact UV-A curing modules when the material is responsive to 365nm. For detection and inspection, these uv diodes can support counterfeit detection, security checking, fluorescence photography, crime inspection, oil leak detection, and sample observation.
The 120° viewing angle provides wide UV distribution, which is useful for applications that need broader area coverage. Compared with 45° or 65° narrow-angle UV LED models, this design spreads light across a wider field, making it suitable for inspection surfaces, insect trap illumination areas, fluorescence panels, and compact chamber lighting.
For insect trap applications, 365nm UV-A output can be used as a light source in designs where the target insects respond to UV light. Final effectiveness depends on the insect species, optical layout, lamp position, housing design, power level, and installation environment. Engineers should validate the complete insect trap system before mass production.
For OEM and ODM projects, these uv diodes can be mounted on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB boards. Aluminum PCB can be used for many standard module designs, while copper PCB may be selected when stronger thermal transfer is required. The diode can be supplied as a component or integrated into UV flashlight modules, curing modules, inspection lamps, insect trap modules, and other customized UV LED assemblies.
Thermal design is still important even though the current is 250mA. To support stable radiant output and long-term operation, use a suitable constant-current driver, proper soldering process, appropriate PCB material, and enough heat dissipation. Engineers should test board temperature, radiant output, beam coverage, and application performance inside the final product.
These uv diodes are components, not complete finished lamps. A complete UV product should include a driver circuit, PCB board, heat sink, housing, optical structure, wiring, switch, and safety design. The CUN66A1F is a 365nm UVA source, not a UVC sterilization diode, and should not be promoted for disinfection or germicidal use.
Do not look directly at operating UV LEDs, and avoid unnecessary skin or eye exposure. Use protective eyewear, shielding, warning labels, and safe working procedures during testing, assembly, and operation.
Specifications
Brand: Seoul Viosys
Model NO.: CUN66A1F
Wavelength: 365nm
Size: 3.5 x 3.5 x 2.0mm
Voltage: 3.6V
Current: 250mA
Radiant Power: 420mW
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 UV flashlight or other UV LED module
Features and Benefits
High power output
Designed for high current operation
SMT type
Lead free product
RoHS compliant
Key Applications
UV Curing
Printing
Coating
Adhesive
Counterfeit Detection / Security
UV Torch
Fluorescence Photography
Dental Curing
Crime Inspection
Oil Leak Detection
Insect Trap
FAQ
What are these uv diodes used for?
These uv diodes are used for UV curing, printing, coating, adhesive curing, counterfeit detection, security inspection, UV torch design, fluorescence photography, dental curing, crime inspection, oil leak detection, and insect trap applications.
Is CUN66A1F a Seoul Viosys UV LED?
Yes. CUN66A1F is a Seoul Viosys 365nm UV-A LED in a compact 3535 SMD package.
What wavelength does this diode use?
The CUN66A1F uses a 365nm wavelength, which belongs to the UVA / near-UV range.
What is the radiant power?
The radiant power is 420mW at 250mA.
What is the forward voltage?
The forward voltage is 3.6V.
What is the view angle?
The view angle is 120°, which provides wide UV coverage for curing, printing, fluorescence inspection, insect trap, and module applications.
Can these uv diodes be mounted on PCB boards?
Yes. They can be welded on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB boards according to the product structure.
Do you provide OEM or ODM UV LED modules?
Yes. OEM and ODM service is available for UV flashlight modules, UV curing modules, inspection lights, insect trap modules, and customized UV LED assemblies.
Are these uv diodes suitable for UV curing?
Yes. They can be used for UV curing, adhesive curing, printing, coating, dental curing, and related UV-A applications when the material responds to 365nm.
Can this diode be used in insect traps?
Yes. The 365nm UV-A output can be used in insect trap light-source designs, but the final attraction performance should be tested in the complete product.
Can these UV diodes be used for UV flashlights?
Yes. The 365nm wavelength, 420mW radiant power, and 120° beam angle make the CUN66A1F suitable for wide-beam UV flashlight and UV torch module designs.
Are these diodes suitable for sterilization?
No. These are 365nm UVA diodes, not UVC sterilization diodes. They should not be used or promoted for disinfection or germicidal applications.
Is it safe to look directly at the LED?
No. Do not look directly at operating UV LEDs. Use protective eyewear, shielding, and safe working procedures during testing, assembly, and operation.
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