www.roithner - laser.com 1 uvtop 295 description uvtop 295 is a series of algan based deep uv - leds with a typical peak wavelength of 3 00 nm and optical output power of 3 0 0 -5 0 0 w . it comes in hermetically sealed to39 or to18 metal can package with ball lens, hemispherical lens, or flat glass window configuration. uvtop 295 is widely used for uv - curing, forensic analysis , protein analysis, dna sequencing and phototherapy applications. maximum ratings (t case = 25c ) parameter symbol values unit min. max. power dissipation, dc p d 1 5 0 mw forward current, dc i f 30 ma pulsed current (1% duty cycle, 1khz) i fp 200 ma reverse voltage u r - 6 v operating temperature t opr - 30 +55 c storage temperature t stg - 30 + 100 c soldering temperature (max. 5s) t sol +190 c general ch aracteristics (t case = 25c, i f = 20ma ) parameter symbol values unit min. * typ. * max. * peak wavelength p 2 95 300 305 nm half width (fwhm) ? 1 2 15 nm forward voltage u f 5. 5 7. 5 v *wavelength measurement tolerance: 2 nm , forward voltage measurement tolerance : 2 % electro - optical characteristics (t case = 25c, i f = 20ma ) part number package window optical power p out (w) view. angle 2? 1/2 () min. * typ. * typ. uvtop 295 - fw - to39 to -39 flat window 3 0 0 5 00 120 UVTOP295 - tfw - to39 flat window 1 0 0 2 00 120 UVTOP295 - tfwr - to39 flat window 150 400 120 UVTOP295 - hl - to39 hemisph. lens 300 350 7 UVTOP295 - bl - to39 ball lens 300 500 7 UVTOP295 - fw - to18 to -18 flat window 300 500 120 UVTOP295 - bl - to18 ball lens 300 500 10 * output power measurement tolerance: 10 % open can version ( to18 or to39, no cap, no window) available on request v 2 .0 24 .06 .2013
www.roithner - laser.com 2 performance characteristic s normalized output power vs. wavelength peak wavelength vs. forward c urrent forward voltage vs. forward current output power vs. forward current normalized output power vs. temperature normalized forward voltage vs. temperature
www.roithner - laser.com 3 outline dimensions to - 39 flat window all dimensions in mm to - 39 hemispherical lens all dimensions in mm to - 39 ball lens all dimensions in mm
www.roithner - laser.com 4 outline dimensions to - 39 tall flat window & tall flat window w. r eflector all dimensions in mm to - 18 flat window all dimensions in mm to - 18 ball lens all dimensions in mm
www.roithner - laser.com 5 device materials part material header fe - ni a lloy, plated ni - au leads fe - ni alloy, plated ni - au lens sio 2 bonding wires au emission ch aracteristics flat window hemispherical lens ball lens
www.roithner - laser.com 6 precautions soldering: ? do avoid o verheating of the led ? do avoid e lectrostatic discharge (esd) ? do avoid m echanical 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 s oldering hand s oldering pre - heat t ime max 30 s soldering t ime max 5 s dipping t ime m ax 5 s solder bath t emperature max 190 c solder t emperature max 190 c above table specifies the maximum allowed duration and temperature during soldering. 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: uvtop 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 uvtop 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 vol t a ge 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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