ultraviolet diode Seoul Viosys UVA 365nm CUN66B1B
Product Details Description
The Seoul Viosys CUN66B1B is a high power ultraviolet diode developed for professional 365nm UVA applications. It combines 1000mW radiant power, 3.7V voltage, 500mA current, and a 45° view angle in a compact 3.5 x 3.5 x 2.8mm SMD package. This makes it suitable for manufacturers that need a compact UV source for curing, printing, detection, UV flashlight, and custom module projects.
This ultraviolet diode is designed for high current operation and high power output. The SMD structure and low thermal resistant material help engineers build efficient UV light engines when the LED is mounted on a suitable aluminum or copper PCB. The 365nm wavelength is often selected when strong fluorescence response and lower visible purple interference are required.
For UV curing and printing, the CUN66B1B can be used in compact exposure heads, adhesive curing tools, resin response tests, coating equipment, and small UV modules. For detection applications, this ultraviolet diode can support counterfeit detection, security inspection, fluorescence photography, crime inspection, oil leak detection, and UV torch products. Final performance depends on the target material, driver current, optical lens, working distance, PCB design, and thermal structure.
The 45° view angle gives this product a more concentrated beam than wide-angle UV LEDs. This is useful when a UV module needs to direct light toward a specific spot, inspection surface, adhesive line, or fluorescence target. It is different from 120° wide-beam emitters, which are better suited for broader area exposure.
For OEM and ODM projects, this ultraviolet diode can be assembled on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB boards. Aluminum PCB can be used for many standard UV module designs, while copper PCB can 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, and other customized UV LED assemblies.
This product is a UV LED component, not a finished lamp. A complete product should include a constant-current driver, PCB board, heat sink, optical lens or reflector, housing, wiring, switch, and safety design. Thermal management is especially important for stable radiant output and long-term operation.
The CUN66B1B is a 365nm UVA ultraviolet diode, not a UVC sterilization diode. It should not be promoted for germicidal or disinfection applications. Do not look directly at the operating LED, and avoid unnecessary skin or eye exposure. Use protective eyewear, shielding, and safe working procedures during testing, assembly, and operation.
Specifications
Brand: Seoul Viosys
Model NO.: CUN66B1B
Wavelength: 365nm
Size: 3.5 x 3.5 x 2.8mm
Voltage: 3.7V
Current: 500mA
Radiant Power: 1000mW
View Angle: 45°
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
Narrow viewing angle
Low thermal resistance
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
FAQ
What is this ultraviolet diode used for?
This ultraviolet diode is used for UV curing, printing, coating, adhesive curing, counterfeit detection, security inspection, UV torch design, fluorescence photography, dental curing, crime inspection, and oil leak detection.
Is CUN66B1B a Seoul Viosys UV LED?
Yes. CUN66B1B is a Seoul Viosys 365nm UV LED diode in a compact SMD package.
What wavelength does this diode use?
The CUN66B1B uses a 365nm wavelength, which belongs to the UVA / near UV range.
What is the radiant power?
The radiant power is 1000mW at 500mA.
What is the forward voltage?
The forward voltage is 3.7V.
What is the view angle?
The view angle is 45°, which provides a narrow and directed UV output for curing, inspection, UV torch, and detection applications.
Can this diode be mounted on a PCB board?
Yes. It can be welded on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB boards according to the final 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, and customized UV LED assemblies.
Is this ultraviolet diode suitable for UV curing?
Yes. It is suitable for UV curing, adhesive curing, printing, coating, dental curing, and related UVA applications when the material responds to 365nm.
Can it be used for UV flashlights?
Yes. Its 365nm wavelength, 1000mW radiant power, and 45° beam angle make it suitable for directed UV flashlight and UV torch designs.
Is this diode suitable for sterilization?
No. This is a 365nm UVA diode, not a UVC sterilization diode. It 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 the operating UV LED. Use protective eyewear, shielding, and safe working procedures during testing, assembly, and operation.
Reviews
There are no reviews yet.