www.roithner - laser.com 1 sm c1 5 5 0 re v 1. 2 , 2 9 . 0 4 .201 4 description sm c1 5 5 0 is a surface mount ingaasp led with a typical peak wavelength of 1 5 5 0 nm and radiation of 1 .3 mw . it comes in smd package ( ceramic ) and is sealed with silicone or epoxy resin. maximum ratings (t case =25c) parameter symbol values min. max. unit power dissipation p d 14 0 mw forward current i f 1 0 0 ma pulse forward current * 1 i f p 5 00 ma reverse voltage v f 5 v thermal resistance r thja 220 k/w junction temperature t j 120 c operating temperature t case - 2 0 + 85 c storage temperature t stg - 3 0 + 100 c lead solder temperature * 2 t sld + 25 0 c * 1 duty=1%, pulse width = 1 0 s * 2 must be completed within 3 seconds electro - optical characteristics (t case =25c) * 1 measured by g 8370 - 85 * 2 measured by ando optical multi meter aq2140 & aq 2742 parameter symbol conditions values min. typ. max. unit peak wavelength p i f = 50ma 1 50 0 1 5 5 0 1 6 0 0 nm half width ? i f = 50ma 14 0 nm forward voltage v f i f = 50ma 0.9 1. 4 v i f p = 5 0 0ma 1.4 radiated power * 1 p o i f = 50ma 1.3 mw i f p = 5 0 0ma 5.0 radiant power * 2 i e i f = 50ma 1.5 mcd i f p = 5 0 0ma 5.8 viewing angle i f = 5 0ma 1 24 deg.
www.roithner - laser.com 2 typical performance curves forward current vs. forward voltage rel. radiant i ntensity vs. forward current forward current [ma] r elative radiant intensity [a.u.] forward voltage [v] forward current [ma] forward current vs. pulse duration allowed forward current vs. ambient temperature forward current [ma] allowable forward current [ma] duration tw [ms] ambient temperature [c] forward voltage vs. ambient temperature rel. radiant i ntensity vs. ambient temperature forward voltage [v] r elative radiant intensity [a.u.] ambient temperature [c] ambient temperature [c]
www.roithner - laser.com 3 outline dimensions all dimensions in mm peak wavelength vs. ambient temperature relative spectral emission peak wavelength [nm] r elative radiant intensity [a.u.] ambient temperature [c] wavelength [nm] radiation characteristics radiation cha racteristics r elative radiant intensity [a.u.] angle [ deg.] relative radiant intensity [a.u.] a ngle [edg.] smc155 0 flat
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 not apply current to the led until it has cooled down to room temperature after soldering recommended soldering conditions: this led is designed to be reflow soldered on to a pcb. if dip soldered or hand soldered, its reliability cannot be guarantee. nitrogen reflow soldering is recommended. air flow soldering conditions can cause optical degradation, caused by heat and/or atmosphere. ir reflow soldering profile (lead - free solder) recommended soldering patterns unit: mm 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: 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. radiation : those leds do emit in visible light , which is invisible and may cause cance r. do avoid exposure to the emitted light. it is further advised to attach a warning label on products/systems. operation : do only operate 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
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