SML-521 Series Light Emitting Diodes Two-color chip LEDs, super small type SML-521 Series The SML-521 Series are two-color chip LEDs, super small type. Due to its small size in dimension and thickness it is suitable for portable electricity which mainly works under battery. Also for high density mounting. !External dimensions (Units : mm) 1.5 RED, ORANGE YELLOW 1.1 2 1 4 3 2 1 4 3 (0.6) 1.3 0.45±0.05 !Features 1) 1.5×1.3mm Super small package 2) Thickness of only 0.6mm 3) Green-red, green-orange greenyellow 3types are available GREEN 0.6 (0.18) (0.225) 0.6 R 0. 2 1.1 0.45±0.05 Cathode index !Selection guide Emitting color Red/Green Orange/Green Yellow/Green Lens Milky white SML-521MUW SML-521MDW SML-521MYW 1.6 Electrode Tolerances are ±0.1 unless otherwise noted: SML-521 Series Light Emitting Diodes !Absolute maximum ratings (Ta=25°C) Parameter Limits Symbol Unit M U, D, Y Power dissipation PD 70 50 mW Forward current IF 25 20 mA Peak forward current IFP 60 mA∗ Reverse voltage VR 4 V Operating temperature Topr −30~+85 °C Storage temperature Tstg −40~+85 °C ∗Pulse width 1ms Duty 1/5 !Electrical and optical characteristics (Ta=25°C) Parameter Reverse current Forward voltage Color VF (V) Type Typ. SML-521MUW SML-521MDW SML-521MYW Peak wavelength Luminous intensity Cond. IR (µA) Cond. Max. IF (mA) Max. VR (V) IV (mcd) Min. Spectral line half width Cond. λP (mm) Cond. ∆λ (mm) Cond. Typ. IF (mA) Typ. IF (mA) Typ. IF (mA) Red 1.9 2.5 22 40 630 18 Green 2.2 2.8 5.6 16 570 40 Orange 1.9 2.5 Green 2.2 2.8 Yellow 1.9 Green 2.2 22 40 5.6 16 2.5 22 40 590 15 2.8 5.6 16 570 40 100 20 4 611 20 570 16 20 20 40 !Directional pattern green ANGULAR DISPLACEMENT (degrees) red orange yellow 0 20 10 30 10 20 30 40 40 60 60 80 80 50 0 50 90 100 60 70 70 80 80 90 100 RELATIVE LUMINOUS INTENSITY 50 0 50 RELATIVE LUMINOUS INTENSITY Fig.1 Directional pattem red orange yellow 50 50 60 70 70 40 40 green 50 50 90 100 ANGULAR DISPLACEMENT (degrees) red orange yellow 0 10 10 20 20 30 30 green 90 100 SML-521 Series Light Emitting Diodes !Electrical characteristic curves 1 (RED / ORANGE / YELLOW) 10.0 1.0 0.1 1.5 2.0 1.2 1.0 0.8 0.6 0.4 −20 0 20 40 60 1000 Ta=25°C 100 10 1 0 80 5 10 15 20 25 CASE TEMPERATURE : TC (°C) FORWARD CURRENT : IF (mA) Fig.2 Forward current vs. forward voltage Fig.3 Luminous intensity vs. case temperature Fig.4 Luminous intensity vs. forward current 250 RELATIVE LUMINOUS INTENSITY (%) 200Hz 100Hz 500Hz 2kHz 1kHz 5kHz 20kHz 10kHz 50kHz 3 f=1kHz DC 200 150 DF=50% 100 DF=20% DF=10% DF=5% 0 1 1 10 100 1000 DF=15% 50 10000 0 10 20 30 40 50 MAXIMUM FORWARD CURRENT : (mA) FORWARD VOLTAGE : VF (V) 10 IFP Max / IF Max 1.4 0.2 2.5 IF=20mA RELATIVE LUMINOUSE INTENSITY 1.6 Ta=25°C RELATIVE LUMINOUS INTENSITY FORWARD CURRENT : IF (mA) 100.0 30 20 10 0 60 PEAK FORWARD CURRENT : (mA) PULSE DURATION : tW (µs) −20 0 20 40 60 80 100 AMBIENT TEMPERATURE : Ta (°C) Fig.6 Luminous intensity vs. peak forward current Fig.5 Maximum tolerable peak current vs. pulse duration 30 Fig.7 Derating !Electrical characteristic curves 2 (GREEN) 10.0 1.0 1.5 2.0 2.5 3.0 IF=20mA 1.4 1.2 1.0 0.8 0.6 0.4 0.2 −20 0 20 40 60 FORWARD VOLTAGE : VF (V) CASE TEMPERATURE : TC (°C) Fig.8 Forward current vs. forward voltage Fig.9 Luminous intensity vs. case temperature 80 1000 RELATIVE LUMINOUSE INTENSITY 1.6 Ta=25°C RELATIVE LUMINOUS INTENSITY FORWARD CURRENT : IF (mA) 100.0 Ta=25°C 100 10 1 0 5 10 15 20 25 FORWARD CURRENT : IF (mA) Fig.10 Luminous intensity vs. forward current 30 SML-521 Series 200Hz 100Hz 500Hz 2kHz 1kHz 5kHz 10kHz 20kHz 50kHz IFP Max / IF Max 2.4 1 1 RELATIVE LUMINOUS INTENSITY (%) 250 10 f=1kHz DC 200 150 100 DF=20% 100 1000 10000 PULSE DURATION : tW (µs) Fig.11 Maximum tolerable peak current vs. pulse duration DF=15% 50 DF=10% DF=5% 0 10 DF=50% 0 10 20 30 40 50 PEAK FORWARD CURRENT : (mA) Fig.12 Luminous intensity vs. peak forward current 60 MAXIMUM FORWARD CURRENT : (mA) Light Emitting Diodes 30 20 10 0 −20 0 20 40 60 80 AMBIENT TEMPERATURE : Ta (°C) Fig.13 Derating 100