www.roithner - laser.com 1 vc850 s - smd v 1. 1 1 5 . 0 5 .201 4 description vc 850 m - smd is a s ingle mode infra red vcsel emitting at typically 85 0 nm with rated output power of 0.5 mw cw, mounted into a smd 0603 package and sealed with epoxy resin . the vcsel works under low forward current and voltage. maximum ratings parameter symbol values min. max. unit forward current i f 8 ma reverse voltage (@ 10a) v f 5 v operating temperature t case - 10 + 50 c storage temperature t stg - 40 + 85 c lead solder temperature * t sld + 260 c * must be completed within 10 seconds electro - optical characteristics (t case =25c) thermal characteristics parameter symbol values min. typ. max. unit emission wavelength peak 83 0 85 0 86 0 nm optical output power p o 0. 3 0.5 0. 7 mw beam divergence ? 8 threshold current i th 2 3 ma operating current i f 3 .5 ma operating voltage v f 1. 8 2. 1 v breakdown voltage v b - 10 v slope efficiency 0. 2 0. 35 mw/ma dynamic resistance r d 7 0 10 0 side mode suppression ratio smsr 15 d b ma x . single mode power p sm 1.0 1.3 mw parameter symbol values min. typ. max. test conditions unit i th temperature variation i th 1 .5 t c = - 1 0 to 50 c ma temperature variation ? / t - 0. 5 t c = - 1 0 to 5 0 c, 3.5 ma %/c temperature variation ? / t 0.06 t c = - 1 0 to 5 0 c, 3.5 ma nm/c
www.roithner - laser.com 2 outline dimensions all dimensions in mm precautions static electricity: vcsels are sensitive to electrostatic discharge (esd) . precautions against esd must be taken when handling or operating these vcsels. surge voltage or electrostatic discharge can result in complete failure of the device. safety advice: this vcsel emits concentrated infrared light which can be hazardous to the human eye and skin . this diode is classi fied as class 3b laser product accordin g to iec 60825 - 1 and 21 cfr part 1040.10 safety standards . operation: do only operate vcsels with a current source. running these leds from a vo ltage source will r esult 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 smd
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