Ultraviolet emitting diode replaces mercury UVC lamps

Operating in wavelengths between 200 and 280nm, a ceramic mid-power ultraviolet, UVC, emitting diode from Vishay Intertechnology has a long lifetime.

The VLMU35CM -280-120 ceramic device has a quartz window and is supplied in a compact surface mount package that measures 3.5 x 3.5 x 1.2mm.

Designed to replace mercury UVC lamps, the device offers an emission angle of ± 60 degrees and radiant power to 18mW at 100mA without the need for an external lens. Built on AlGaN technology, the VLMU35CM..-280-120 features forward current up to 150mA, forward voltage down to 4.0V, and a wavelength range of 270 to 290nm.

The emitter diode’s specifications make it particularly well-suited to water and air purification, physical surface sterilisation, medical disinfection, and portable sanitisers. RoHS-compliant and halogen-free the VLMU35CM..-280-120 is compatible with reflow soldering processes and features a moisture sensitivity level (MSL) of 3 in accordance with J-STD-020.

Samples of the new UVC emitting diode are available now. Production quantities are available with lead times of four weeks.

Vishay Intertechnology is one of the world’s largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infra red optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets.

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