ROHM SML-512

SML-512 Series
LED lamps
Ultra high brightness chip LEDs
SML-512 Series
The SML-512 series are ultra high brightness chip LEDs equipped with an AlGaInP chip. The compact and leadless
design of these LEDs allows for high mounting density.
!External dimensions (Units : mm)
1.6+0.2
0
1.2
0.25
0.55
0.8
!Features
1) Three colors : red, orange and yellow.
2) Rectangular and leadless (1.6x0.8mm, 0.55mm thick)
3) Can be mounted by automatic mounting.
Cathode index
1.0
Electrode
Tolerance are ±0.1 unless
otherwise noted.
!Selection guide
Emitting color
Red
Orange
Yellow
Lens
Transparent clear
SML-512UW SML-512DW SML-512WW
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Power dissipation
PD
62
mW
Forward current
IF
25
Peak forward current
IFP
60
mA
mA∗
Reverse voltage
VR
4
V
Operating temperature
Topr
−30∼+85
°C
Storage temperature
Tstg
−40∼+85
°C
∗ Pulse width 1ms Duty 1 / 5
1/3
SML-512 Series
LED lamps
!Electrical and optical characteristics (Ta=25°C)
Parameter
Color
VF(V)
Type
SML-512
Reverse
current
Forward voltage
Peak
wavelength
Luminous intensity
Spectral line
half width
Cond. λP(nm) Cond. ∆λ(nm) Cond.
Cond.
IR(mA) Cond.
Typ.
Max.
IF(mA)
Max.
VR(V)
Min.
IV(mcd)
Typ
IF(mA)
Typ.
IF(mA)
Typ.
IF(mA)
UW
Red
1.9
2.5
20
100
4
22
63
20
630
20
18
20
DW
Orange
1.9
2.5
20
100
4
36
63
20
611
20
16
20
WW
Yellow
1.9
2.5
20
100
4
36
63
20
590
20
15
20
!Directional pattern
ANGLE (˚)
(X−Y)
10
20
0
20
30
20
40
10
20
30
40
50
50
60
60
80
80
90
100
50
60
60
70
70
0
0
40
50
50
50
10
30
30
40
90
100
ANGLE (˚)
(X'−Y' )
10
70
70
80
80
90
100
50
RELATIVE LUMINOUS INTENSITY (%)
0
90
100
50
RELATIVE LUMINOUS INTENSITY (%)
Fig.1 Directional pattern
!Electrical characteristics curves
1.0
1.5
2.0
2.5
FORWARD VOLTAGE : VF (V)
Fig. 2 Forward current vs.
forward voltage
3.0
10.00
IF=20mA
Ta=25°C
RELATIVE LUMINOUS INTENSITY
10.0
0.1
1.0
1.6
Ta=25˚C
RELATIVE LUMINOUS INTENSITY
FORWARD CURRENT : IF (mA)
100.0
1.4
1.2
1.0
0.8
0.6
0.4
−20 −10
0
10 20 30 40 50 60 70 80
1.00
0.10
0.01
0.1
1
10
100
CASE TEMPERATURE : Tc (˚C)
PEAK FORWARD CURRENT : IF (mA)
Fig. 3 Luminous intensity vs.
case temperature
Fig. 4 Luminous intensity vs.
forward current
2/3
SML-512 Series
LED lamps
DC
1
10
100
1000
10000
PULSE DURATION : Tw (µs)
Fig. 5 Maximum tolerable peak current
vs. pulse duration
RELATIVE LUMINOUS INTENSITY
100Hz
200Hz
1kHz
500Hz
2kHz
10kHz
5kHz
20kHz
50kHz
IFP Max / IF MaxI
f=1kHz
200
150
DF=50%
100
20%
15%
50
10%
0
0
5%
10
20
30
40
50
60
70
PEAK FORWARD CURRENT : IF peak (mA)
Fig. 6 Luminous intensity vs.
peak forward current
30
MAXIMUM FORWARD CURRENT : IF Max. (mA)
250
10
20
10
0
0
10 20 30 40 50 60 70 80 90 100
AMBIENT TEMPERATURE : Ta (˚C)
Fig.7 Maximum forward current
vs. ambient temperature
(Derating)
3/3