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| SML31Series LED lamps Small,chip LEDs (Blue . Green) SML31 Series The SML31 series are small, chip LEDs. The compact and leadless design of these LED allows for high mounting density. !Features 1) Two colors, three types (Blue and Green) 2) Rectangular and leadless (1.6x0.8mm, 0.8mm thick) 3) Can be mounted by automatic mounting. !External dimensions (Units : mm) 1.6+0.2 0 1.2 0.8 Cathode index 1.0 0.25 Electrode 0.8 Tolerances are 0.1 unless other wise noted: !Selection guide Emitting color Lens Blue (GaN) Blue (InGaN) Green (InGaN) Transparent clear SML310BAT SML311BBT SML311EBT !Absolute maximum ratings (Ta=25C) Parameter Power dissipation Forward current Peak forward current Reverse voltage Operating temperature Storage temperature * Duty 1 / 10 , 1KHZ Symbol Limits Unit SML310BAT PD IF IFP VR Topr Tstg 70 94 SML311BBT SML311EBT 84 mW mA 100 mA* V C C 20 5 -20+80 -30+100 1/3 SML31Series LED lamps !Electrical and optical characteristics (Ta=25C) Parameter Color Type SML310BAT SML311BBT SML311EBT Blue Blue Blue Forward voltage VF(V) Typ. 3.8 3.5 3.5 Max. 4.7 4.2 4.2 Cond. IF(mA) 20 20 20 Reverse current IR(A) Cond. Max. 100 100 100 VR(V) 5 5 5 Luminous intensity IV(mcd) Min. 1.4 5.6 36 Typ. 3.6 14 90 Cond. IF(mA) 20 20 20 Peak wavelength Spectral line half width P(m) Cond. Typ. 428 468 523 IF(mA) 20 20 20 (nm) Cond. Typ. 65 26 36 IF(mA) 20 20 20 !Directional pattern (X-Y) 20 30 40 50 60 70 80 90 100 10 ANGLE () 0 10 20 30 40 50 60 70 80 90 100 70 80 90 100 60 50 40 30 (X'-Y' ) 20 10 ANGLE () 0 10 20 30 40 50 60 70 80 90 100 50 0 50 50 0 50 RELATIVE LUMINOUS INTENSITY (%) RELATIVE LUMINOUS INTENSITY (%) Fig. 1 Directional pattern !Electrical characteristics curves 50 FORWARD CURRENT : IF (mA) Ta=25 C RELATIVE LUMINOUS INTENSITY 1.6 1.4 SML310 1.2 1.0 SML311 0.8 0.6 0.4 20 0 20 40 60 80 CASE TEMPERATURE : Tc ( C ) RELATIVE LUMINOUS INTENSITY:(%) 150 IF=20mA Ta=25 C ML311 20 100 SML310 10 SML310 5.0 50 SML311 2.0 1.0 2.5 3.0 3.5 4.0 FORWARD VOLTAGE : VF (V) 0 0 10 FORWARD CURRENT:(mA) 20 Fig.2 Forward current vs. forward voltage Fig.3 Lumirons intensity vs.casetemperature Fig.4Luminous intensity vs. forward current 2/3 SML31Series LED lamps RATIO of MAXIMUM TOLERABLE PEAK CURRENT IF peak Max. to MAXIMUM TOLERABLE DC CURRENT IF Max. 5 SML311 SML310 3.5 MAXIMUM FORWARD CURRENT : (mA) 300Hz 3kHz 100Hz 1kHz 1 10 100 1000 PULSE DURATION : Tw (s) 10000 -20 10 0 10 0 30 40 50 60 70 80 90 100 AMBIENT TEMPERATURE : Ta ( C) Fig.5 Maximum tolerable peakcurr ent vs. Dulse duration Fig 6 Maximum forward current vs. ambient temperature 3/3 |
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