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            Rayvio | XR Series High Power UV LEDs (308 nm)
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            XR Series UV Emitter or Star Board LED (308 nm)

            High UV B power for phototherapy

            RayVio XR 308nm Series UV LEDs deliver high-power and high-efficiency UV B light for phototherapy with peak spectral wavelength output of 308nm.

            These devices are designed to meet the most demanding and mission critical applications in the healthcare and well being segments.

            Features and Benefits

            Highly efficient UV B devices. Most suitable for portable skin care applications

            Proven effective for skin treatment at 308nm

            Industry leading reliability and lifetime

            Star board package simplifies thermal engineering and allows for rapid prototyping and development

            Common Applications

            ? ? Skin treatment
            ? ? Psoriasis
            ? ? Eczema
            ? ? Vitiligo
            ? ? Lichen planus
            ? ? DNA analysis

            Product Options

            Table 1. Radiant Flux Performance Characteristics at Ta=25?C

            Part Number Radiant Output @ 100mA, 25?C
            Min. (mW) Typ. (mW) Max. (mW)
            RVXR-308-SM-08500300 10 13 15
            RVXR-308-SB-08500300 10 13 15

            Table 2. Electrical and Optical Characteristics at Ta=25?C

            Characteristics Unit Min Typical Max
            Peak Wavelength (@100mA) nm 305 308 315
            Forward Voltage (@100mA) V 5 6 7.5
            Spectrum Half Width (FWHM) nm - 17 -
            View Angle degrees - 120 -
            Thermal Resistance
            (Junction to solder point)
            °C/W - 15 -
            • RayVio maintains a tolerance of ±10% on radiant flux and ±3nm on peak wavelength
            • Although all LEDs are tested, some values may vary slightly depending on the conditions of the test equipment


            Table 3.

            Forward Current % of Nominal
            Output Power
            P70 Reliability P50 Reliability
            50mA 50% 5,000 hours 10,000 hours
            70mA 70% 2,500 hours 5,000 hours
            100mA (nominal) 100% (nominal) 1,250 hours 2,500 hours

            Absolute Maximum Ratings

            Table 4.

            Parameter Maximum Performance
            Power Dissipation 0.75 W
            Forward Current 100mA
            Junction Temperature, Tj 60°C
            Storage Temperature -30°C to 150°C
            ESD Sensitivity +/-8kV Human Body Model