Seoul Viosys SMD LED UVB CUD1GF1B 310nm 7mW at 150mA with PCB (10x10mm)

Seoul Viosys SMD LED UVB CUD1GF1B 310nm 7mW at 150mA with PCB (10x10mm)

This product is a high-power UV-B LED with a peak wavelength of 310 nm and a radiant power of 7 mW at the specified drive current.

The germicidal effect of UV-C radiation is well documented: photons in the 250–280 nm range are absorbed by the DNA and RNA of micro-organisms and form dimers that prevent replication, which inactivates bacteria, moulds and viruses. The decisive design parameter is the dose, that is the irradiance on the target surface multiplied by the exposure time, so the radiant power, the beam angle and the working distance all have to be considered together when sizing an application.

This version is supplied ready-mounted on a 10 x 10 mm metal-core board. That solves the two hardest problems of working with deep-UV packages: the LED is already soldered with the correct profile, and the metal core conducts the heat away from the die. Reflow-soldering a UV package by hand is difficult and easily damages it, so the pre-mounted version is usually the faster and safer route into a prototype.

Two properties distinguish UV LEDs from white LEDs in the design work. Their radiant output is specified in milliwatts rather than lumens, because the human eye is not the measuring instrument here. And they are considerably more sensitive to junction temperature, with both the output and the lifetime falling noticeably as the LED heats up, so a generously dimensioned heat sink is not optional.

About Seoul Viosys

Seoul Viosys is the compound-semiconductor arm of the Seoul Semiconductor group and one of the established suppliers of UV LED technology, marketed under the Violeds name. Its UV-A, UV-B and UV-C packages are used in disinfection, curing, medical and analytical equipment, and the company publishes detailed radiometric and lifetime data for each package. Buying a branded UV LED matters more than in the white-light world: deep-UV output degrades measurably over time, and only a manufacturer that documents that degradation lets you design a system with a defined service interval.

Important safety information

UV-C and UV-B radiation is harmful to skin and eyes. This product is intended exclusively for professional and industrial use and must never be operated where people, animals or plants can be exposed to the direct or reflected radiation. Suitable protective equipment, interlocks and shielding are mandatory, and the applicable national regulations on optical radiation at the workplace must be observed. The product is supplied as a component for integration by qualified personnel.

Technical features

• Seoul Viosys CUD1GF1B LED package
• Light colour: Ultraviolet
• Peak wavelength: 310 nm
• Radiant power: 7 mW (typical)
• Operating current: 150 mA
• Dimensions: 10 x 10 x 3 mm
• Manufacturer part number: CUD1GF1B

Applications

• Air, surface and water disinfection systems
• Medical and laboratory equipment
• Industrial process and conveyor disinfection
• OEM integration into sterilisation devices