uv diodes Seoul Viosys UVA 365nm CUN66A1F
Product Details Description
The Seoul Viosys CUN66A1F is a 365nm UV-A LED diode for applications with compact UV requirements, such as stabilized 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 good choice for manufacturers who create UV curing tools, printing devices, detectors, insect trap lamps, UV flashlights, and custom UV LED modules.
These uv diodes are products of the Seoul Viosys Z5 near-UV LED series. It employs 3.5 x 3.5 x 2.0mm SMD package and low thermal resistance material, providing engineers an opportunity to create compact UV modules using efficient PCB mounting technology. 365nm wavelength is usually used for fluorescence reactions, curing tests, detection, and UV reactive applications in cases when less visible purple interference is required.
In terms of UV curing and printing, the CUN66A1F can be used in small exposure heads, adhesive reaction tests, coating examination devices, and compact UV-A curing modules when the material reacts to 365nm. For detection and inspection purposes, these uv diodes can be used in counterfeit detection, security checking, fluorescence photography, crime inspection, oil leak detection, and sample analysis.
The 120° view angle gives wide UV radiation coverage, which is useful for applications requiring wider area coverage. Compared with 45° and 65° narrow-angle UV LED models, this one gives more wider UV distribution. It is 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 when the insects react to UV light. The final efficiency of the insect trap depends on the insect species, optical design, lamp location, housing design, power level, and installation environment. Before starting the mass production of the insect trap, the engineer should verify its performance.
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 most standard UV module designs, whereas copper PCB should be used in cases when better thermal transfer is needed. It can be provided both as a component or incorporated in the UV flashlight modules, curing modules, inspection lamps, insect trap modules, and other custom UV LED assemblies.
Thermal design is still very important despite the current level of 250mA. To give reliable radiant output and ensure the operation over a longer time period, it is necessary to use a good constant-current driver, proper soldering process, appropriate PCB material, and adequate heat dissipation. Engineers should test board temperature, radiant output, beam coverage, and application performance in the final product.
These uv diodes are components, not a completed lamp. A complete UV product should have a driver circuit, PCB board, heat sink, housing, optical design, wiring, switch, and safety design. The CUN66A1F is a 365nm UVA source, not a UVC sterilization diode, and shouldn’t be advertised for disinfection and sterilization purposes.
Do not look directly at operating UV LEDs, and do not expose your skin and eyes unnecessarily. Use protective glasses, shielding, warning labels, and safe procedures while testing, assembling, and operating.
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 gives 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 design.
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 reacts 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 verified in the completed 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 advertised for disinfection and sterilization 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 procedures during testing, assembling, and operating.
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