sml-811 series light emitting diodes 1/3 reverse mount type high brightness chip led sml- 811 series the sml-811 series are reverse mount type high brightness chip leds. ! ! ! ! features 1) three colors : red, orange and yellow. 2) small shaped (3.4 1.25mm). 3) by algainp die, it makes more brighter. ! ! ! ! external dimensions (units : mm) 0.28 1.1 1.2 3.4 +0.2 0 1.25 r 1.25 4 ? r 0.3 1.8 (units : mm) electrode tolerances are 0.1 unless otherwise noted: resisit cathode index ! ! ! ! selection guide emitting color lens transparent clear red orenge sml-811ut sml-811dt yellow sml-811wt ! ! ! ! absolute maximum ratings (ta=25 c) ? pulse width 1ms duty 1 / 5 parameter symbol p d i f i fp v r topr tstg unit mw ma ma ? v c c limits 4 ? 30 + 85 ? 40 + 85 62 25 60 power dissipation forward current peak forward current reverse voltage operating temperature storage temperature
sml-811 series light emitting diodes 2/3 ! ! ! ! electrical and optical characteristics (ta=25 c) parameter type sml-811 ut dt red orange typ. 2.0 2.0 max. i f ( ma) max. i r ( ma) v r ( v) cond. typ. p ( nm) i f ( ma) cond. typ. ? ( nm) i f ( ma) cond. cond. v f ( v) min. typ i f ( ma) cond. i v ( mcd) 14 14 18 16 20 20 20 20 630 611 20 20 40 40 4 4 100 100 20 20 2.5 2.5 wt yellow 2.0 14 15 20 20 590 20 40 4 100 20 2.5 forward voltage reverse current color peak wavelength spectral line half width luminous intensity ! ! ! ! directional pattern scanning angle (deg) relative intensity (%) 0 50 100 50 100 0 10 10 20 20 30 40 50 60 70 80 90 30 40 50 60 70 80 90 scanning angle (deg) relative intensity (%) 0 50 100 50 100 0 10 10 20 20 30 40 50 60 70 80 90 30 40 50 60 70 80 90 fig.1 directional pattern xy x' y' ! ! ! ! electrical characteristic curves 10.0 1.0 1.5 1.0 2.0 2.5 3.0 100.0 forward voltage : v f (v) forward current : i f (ma) ta=25 c fig.2 forward current vs. forward voltage 1.4 1.2 1.0 0.8 0.6 0.4 40 50 ? 30 ? 20 ? 10 20 10 30 0 60 70 100 90 80 1.6 relative luminous intensity i f =20ma case temperature : t c ( c) fig.3 relative lluminous intensity vs. case temperature 1 10 1 100 1000 10000 10 2.4 pulse duration : t w ( s) ifp max / if max 100hz 200hz 500hz 1khz 2khz 5khz 10khz 20khz 50khz fig.4 patio of maximum tolerable peak current vs. pulse duration
sml-811 series light emitting diodes 3/3 250 200 150 100 50 0 0 102030405060 relative luminous intensity peak forward current : (ma) 15% 20% 10% 5% f = 1khz dc df = 50% fig.5 relative luminous intensity vs. forward current 20 10 0 010 20 30 40 50 70 80 60 90 100 40 30 ambient temperature : ta ( c) maximum forward current : (ma) fig.6 maximum forward current vs. ambient temperature (derating)
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