seoul viosys uv led chip 385nm
Product Details Description
The Seoul Viosys CUN86B1B is a high power Seoul Viosys UV LED chip developed for professional 385nm UV-A applications that require compact size, directed beam output, and reliable SMD integration. With 385nm wavelength, 1160mW radiant power, 3.5V voltage, 500mA current, and a 45° view angle, it is suitable for manufacturers developing UV curing tools, printing systems, coating equipment, inspection lamps, UV torch products, and custom UV LED modules.
This Seoul Viosys UV LED chip belongs to the nZ5 near-UV LED family. It is designed for high current operation and high power output applications, using a modern SMD structure with low thermal resistant material. The 3.5 x 3.5 x 2.8mm package gives engineers a compact platform for building UV light engines without using bulky traditional lamps.
The 385nm wavelength is commonly selected for UV curing, printing, coating, adhesive curing, counterfeit detection, security inspection, UV torch products, fluorescence photography, dental curing, crime inspection, and oil leak detection. Compared with 365nm UV LEDs, 385nm usually provides more visible violet output, which can help visual alignment and UV-reactive inspection while still offering useful UV-A energy.
For production applications, this Seoul Viosys UV LED chip can be integrated into UV curing modules, printing equipment, coating systems, adhesive curing tools, and dental curing devices when the target material responds to 385nm UV-A output. Final performance depends on material chemistry, exposure distance, driver current, optical design, thermal structure, and required UV dose.
The 45° viewing angle gives this model a focused beam profile. It is more concentrated than 65° or 120° UV LEDs, making it useful when the design needs higher local intensity over a smaller area. This beam profile fits UV flashlight heads, spot-curing modules, inspection lamps, adhesive bonding tools, and compact exposure devices.
For OEM and ODM projects, the CUN86B1B can be welded on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB boards. Aluminum PCB is suitable for many standard UV module designs, while copper PCB can be selected when stronger thermal transfer is required. The LED can be supplied as a component or assembled into UV flashlight modules, curing modules, inspection lamps, and other customized UV LED products.
Thermal design is important for a 500mA UV LED. To support stable radiant output and long-term performance, use a suitable constant-current driver, proper soldering process, appropriate PCB material, and enough heat dissipation. Engineers should verify board temperature, radiant output, beam pattern, and application performance inside the final product before mass production.
This product is a UV LED component, not a complete lamp. A finished device should include a driver circuit, PCB board, heat sink, housing, optical lens or reflector, wiring, switch, and safety structure. The CUN86B1B is a 385nm UVA light source, not a UVC sterilization LED, and should not be promoted for disinfection or germicidal applications.
Do not look directly at the operating UV LED, 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 uv led chip
Model NO.: CUN86B1B
Wavelength: 385nm
Size: 3.5 x 3.5 x 2.8mm
Voltage: 3.5V
Current: 500mA
Radiant Power: 1160mW
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
3535 SMD package
Suitable for focused UV-A module design
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 Seoul Viosys UV LED chip used for?
This Seoul Viosys UV LED chip 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 CUN86B1B a Seoul Viosys UV LED?
Yes. CUN86B1B is a Seoul Viosys 385nm UV-A LED in a 3535 SMD package.
What wavelength does this UV LED chip use?
The CUN86B1B uses a 385nm wavelength, which belongs to the UVA / near-UV range.
What is the radiant power?
The radiant power is 1160mW.
What is the forward voltage?
The forward voltage is 3.5V.
What is the operating current?
The operating current is 500mA.
What is the package size?
The package size is 3.5 x 3.5 x 2.8mm.
What is the view angle?
The view angle is 45°, giving this Seoul Viosys UV LED chip a narrow beam for focused curing, inspection, UV torch, and detection applications.
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 according to the final 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, dental curing modules, and customized UV LED assemblies.
Is this LED suitable for UV curing?
Yes. It can be used for UV curing, adhesive curing, printing, coating, dental curing, and related UV-A applications when the material responds to 385nm.
Can it be used for UV flashlights?
Yes. Its 385nm wavelength, 1160mW radiant power, and 45° beam angle make it suitable for focused UV flashlight and UV torch module designs.
Is this Seoul Viosys UV LED chip suitable for sterilization?
No. This is a 385nm UVA LED, not a UVC sterilization LED. It should not be used or promoted for disinfection or germicidal applications.
Why is thermal design important?
The CUN86B1B operates at 500mA, so proper PCB material, heat sinking, current control, and thermal testing are important for stable UV output and long-term module performance.
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.
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