UV LED - Chip on Board (COB)

COB modules for easy testing and integration.

Chip on Board (COB) solutions give you more power in a flexible design. With chips bonded directly on a MCPCB in close configurations for increased efficiency, COB UV LEDs have the lowest thermal resistance for the best reliability on the market. Violumas light bars and arrays are suitable for both retrofit and new designs.

Ready for Plug and Play – COB modules are ready for plug and play with no soldering required. All Violumas COBs have built-in connectors for easy wiring and testing.

Protection from ESD – Every Violumas COB module includes TVS protection on the MCPCB to help control electrostatic discharge damage.

Easy Integration – COBs can be assembled in a modular fashion to allow for easy integration and testing without the need for a separate MCPCB.

Standard Heat Sink  – Violumas can provide a suitable heat sink for all standard COB modules so you can test without worrying about thermal management and decay.

UV LED COBs available in wavelengths: 265nm | 275nm | 310nm | 365nm | 385nm | 395nm | 405nm

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Mid Power: 1×1 Series

• Single-Chip COB Module
• Dimensions: 15mm x 15mm
• Thermal Resistance: 0.9°C/W
• Viewing Angle Options: 30°/60°/90°/120°

High Power: 2×2 Series

• Four Chip COB Module
• Dimensions: 20mm x 20mm
• Thermal Resistance: 0.2°C/W to 0.3°C/W
• Viewing Angle Options: 30°/60°/90°/120°

Light Bar: 12×1 Series

• Light Bar COB Module
• Dimensions: 304mm x 20mm
• Ideal for retrofit or testing use
• Viewing Angle Options: 30°/60°/90°/120°

Custom COBs for your unique system and application.

With capability in optical simulation, circuit design, and bonding, Violumas can help optimize custom COB arrays to your specifications. Violumas offers custom arrays and lightbars to ensure you see success in your UV solution for both prototyping and mass production purposes.

COB Advantages

Greater Packing Density
Bonding chips directly on the MCPCB allows for precise and uniform optical output. COBs are ideal for high uniformity requirements.

Supreme Thermal Dissipation
With our 3-PAD technology and a cooling copper substrate, COBs have the best thermal dissipation, allowing for higher output and reliability.

Higher Output Efficiency
COBs emit more radiant flux per watt compared to other modules and packages for a more powerful and efficient solution.

Design Flexibility
COBs provide more room for custom design – We can adjust the board size, chip structure, optics, wavelength, etc. to best fit your system.