www.roithner - laser.com 1 uv max 2 7 0 - 15 ? deep ultraviolet light emission source ? 2 7 5 nm, 10 - 15 mw ? multi chip led array ? thermistor ? tec (optionally) ? to3 metal can with sio 2 glass lens ? water sterilization, dna sequencing maximum rating (t case = 25c) parameter symbol values unit min. max. power dissipation, dc * p d 5.4 w forward current (t a =25c) i f 720 ma operating temperature t opr - 30 + 5 5 c storage temperature t stg - 3 0 + 100 c soldering temperature (max 5s) t sol + 190 c * maximum dissipated power must not exceed 200mw without thermal management electro - optical characteristics (t case = 25c, i f = 720 ma) parameter symbol values unit min. typ. max. peak wavelength *1 p 270 275 280 nm spectral width (fwhm) ? 12 15 nm forward voltage *2 v f 6.2 7.5 v radiated power *3 p o 1 0 15 mw beam angle (hemispherical lens) 2? 1/2 35 deg. beam angle (flat window) 2 ? 1/2 120 deg. * 1 wavelength measurement tolerance: 2 nm * 2 forward voltage measurement tolerance: 2 % * 3 output power measurement tolerance: 10 % note: uvmax leds are accompanied by a test report, overriding the electrical characteristics given in this datasheet d escription uv max 2 7 0 is a series of algan based deep uv multi chip led arrays, utilizing 4 parallel strings (common cathode) carrying up to 9 pcs of parallel connected chip dies each. uvmax2 7 0 features total optical output power of 10-15 mw at a nominal current draw of 720ma, and typical emission wavelength of 2 7 5 nm . it comes in hermetically sealed to3 metal can package with hemispherical lens or flat glass window configuration, with integrated thermistor . uv max 2 7 0 is widely used for forensic analysis, disinfection, water sterilization, protein analysis, dna sequencing and drug discovery. uvmax270 can optionally be equipped with an integrated thermo electric cooler rev . 1. 0 05.05.15
www.roithner - laser.com 2 electrical layout note: quantity and arrangement of anodes and quantity of dies per each anode may vary outline dimensions fw - flat window all dimensions in mm hl - hemispherical lens all dimensions in mm
www.roithner - laser.com 3 emission characteristics fw - flat window hl - hemispherical l ens device materials pin # material header fe - ni alloy, plated ni - au leads fe - ni alloy , plated ni - au bonding wires au lens sio 2
www.roithner - laser.com 4 precautions soldering: ? do avoid overheating of the led ? do avoid electrostatic discharge (esd) ? do avoid mechanical stress, shock, and vibration ? do only use non - corrosive flux. ? do only solder the leads. soldering of header or cap will damage the led ? do only cut the leads at room temperature with an esd protected tool ? do not solder closer than 3 mm from base of the header ? do form leads prior to soldering ? do not impose mechanical stress on the header when forming the leads ? do not apply current to the led until it has cooled down to room temperature after soldering recommended soldering conditions: dip soldering hand soldering pre - heat time max 30 s soldering time max 5 s dipping time max 5 s solder bath temperature max 190 c solder temperature max 190 c it is strongly advised to perform soldering at the shortest time and lowest temperature possible. cleaning : cleaning with isopropyl alcohol, propanol, or ethyl alcohol is recommended do not use acetone, chloroseen, trichloroethylene, or mks do not use ultrasonic cleaners static electricity: leds are sensitive to electrostatic discharge (esd) . precautions against esd must be taken when handling or operating these leds. surge voltage or electrostatic discharge can result in complete failure of the device. uv - radiation: during operation these leds do emit high intensity ultraviolet light , which is hazardous to skin and eyes , and may cause cancer. do avoid exposure to the emitted uv light. protective glasses are recommended . it is further advised to attach a warning label on products/systems that do utilize uv - leds: operation: do only operate uv max leds with a current source. running these leds from a voltage source will result in complete failure of the device. current of a led is an exponential function of the voltage across it. usage of current regulated drive circuits is mandatory ? all rights reserved the above specifications are for reference purpose only and subjected to change without prior notice class 1
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