Nichia SMD LED UV NVSU119C 385nm 1340mW at 700mA 2.3W with PCB (10x10mm)

Nichia SMD LED UV NVSU119C 385nm 1340mW at 700mA 2.3W with PCB (10x10mm)

This product is a high-power UV-A LED with a peak wavelength of 385 nm and a radiant power of 1340 mW at the specified drive current.

UV-A radiation in this range is the working wavelength for UV curing of adhesives, inks and coatings, for fluorescence excitation in inspection and analysis, and for counterfeit detection. An LED source has decisive advantages over a mercury lamp here: instant full output with no warm-up, free switching and dimming, a narrow emission band instead of a broad spectrum with unwanted infrared, a much longer service life and no mercury to dispose of.

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.

Why we build with Nichia LEDs

Nichia is a major Japanese LED manufacturer and one of the companies closely associated with the development and commercialisation of high-brightness blue and white LED technology. Its professional lighting LEDs are selected for well-documented optical and electrical characteristics, tight binning options and long-term characterisation. For a luminaire maker, that means the PCB, driver and thermal design can be built around defined forward-voltage, flux, colour and temperature limits instead of anonymous components whose behaviour may change from one batch to the next.

Technical features

• Nichia NVSU119C LED package
• Light colour: Ultraviolet
• Peak wavelength: 385 nm
• Radiant power: 1340 mW (typical)
• Power consumption: 2.3 W
• Operating point: 700 mA at 3.3 V
• Dimensions: 10 x 10 mm
• Manufacturer part number: NVSU119C

Applications

• UV curing of adhesives, inks and coatings
• Fluorescence excitation and inspection
• Forensic and analytical equipment
• Counterfeit detection and document verification
• Insect traps and phototherapy equipment