SML-31 Series
lFeatures
• 1608 standard size(1.6×0.8mm, t=0.8mm)
• Abundant color variations with diverse luminous intensity types
lOutline
Data
Sheet
lSize
1006 (0402)
1608(0603)
1.6×0.8mm(t=0.8mm)
1.0×0.6mm (t=0.2mm)
lDimensions
Color
Type
V
M
U
P
D
E
Y
B
W
lRecommended
Solder Pattern
0.8
0.85
0.8
Tolerance :
0.1
(unit : mm)
(unit : mm)
lSpecifications
Part No.
Chip
Structure
Emitting
Color
Absolute Maximum Ratings (Ta=25ºC)
Peak Forward
Reverse
Operating Temp.
Storage Temp.
Dissipation
Current
Current
Voltage
P
D
(mW)
I
F
(mA) I
FP
(mA) V
R
(V)
Topr(ºC)
Tstg(ºC)
Power
Forward
Electrical and Optical Characteristics (Ta=25ºC)
Forward Voltag V
F
Reverse Current I
R
Typ.
(V)
I
F
(mA)
Max.
(mA)
V
R
(V)
Dominant Wavelength
lD
Luminous Intensity I
V
I
F
I
F
Min. Typ. Max.
Min. Typ.
(nm) (nm) (nm) (mA) (mcd) (mcd) (mA)
SML-310VT
SML-311UT
SML-311DT
SML-310DT
SML-311WT
SML-311YT
SML-310YT
SML-310MT
GaAsP
on GaP
AlGaInP
on GaAs
GaAsP
on GaP
55
Red
2
20
625
615
630
620
635
625
20
1.4
0.9
0.8
4
2.5
20
44
Orange
1.8
2
602
605
608
2
1.6
3.15
6.3
2
55
60*
1
44
-30
to
+85
4
-40
to
+85
2
20
4
587
590
593
20
2.2
20
AlGaInP
on GaAs
Yellow
GaAsP
on GaP
Yellowish
Green
1.8
2
584
587
590
2
0.9
2.5
2
20
55
2.1
100
567
570
560
527
520
535
525
5
573
563
20
2.2
3.6
1.4
90
36
6.3
16
4
200
90
63
20
GaP
SML-310PT
SML312ECT
SML312EC4T
InGaN
SML312BCT
Blue
SML312BC4T
Green
2.2
557
3.3
100*
2
-40
to
+100
3.2
3.3
464
3.2
470
476
22
46
20
Bluish
Green
84
5
*1
: Duty1/5, 200Hz
*2
: Duty1/10, 1kHz
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© 2014 ROHM Co., Ltd. All rights reserved.
1/9
2014.12 - Rev.D
SML-31 Series
lElectrical
Characteristics Curves
Data Sheet
Fig.1 Forward Current - Forward Voltages
Ta=25ºC
Fig.2 Luminous Intensity -
Atmosphere Temperature
RELATIVE LUMINOUS INTENSITY [a.u.]
1.6
I
F
=20mA
100
FORWARD CURRENT : I
F
[mA]
SML-310VT
SML-310DT
SML-310MT
SML-310PT
SML-310YT
1.4
1.2
10
1.0
0.8
0.6
0.4
-40
SML-310VT
SML-310DT
SML-310YT
SML-310MT
SML-310PT
1
1.0
1.5
2.0
2.5
3.0
-20
0
20
40
60
80
100
FORWARD VOLTAGE : V
F
[V]
ATMOSPHERE TEMPERATURE : Ta [ºC]
Fig.3 Luminous Intensity - Forward Current
3.0
Fig.4 Derating
30
RELATIVE LUMINOUS INTENSITY [a.u.]
2.5
SML-310VT
SML-310DT
SML-310YT
SML-310MT
SML-310PT
f=1kHz
2.0
MAXIMUM FORWARD CURRENT : I
F
[mA]
20
1.5
1.0
10
SML-310VT
SML-310DT
SML-310YT
SML-310MT
SML-310PT
0.5
0
0
10
20
30
40
50
60
0
-40
-20
0
20
40
60
80
100
FORWARD CURRENT : I
F
[mA]
AMBIENT TEMPERATURE : Ta [ºC]
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
2/9
2014.12 - Rev.D
SML-31 Series
lElectrical
Characteristics Curves
Data Sheet
Fig.1 Forward Current - Forward Voltages
SML-311UT
SML-311DT
SML-311WT
SML-311YT
Fig.2 Luminous Intensity -
Atmosphere Temperature
RELATIVE LUMINOUS INTENSITY [a.u.]
1.6
I
F
=20mA
100
Ta=25ºC
FORWARD CURRENT : I
F
[mA]
1.4
10
1.2
1.0
1.0
0.8
0.6
0.4
-40
SML-311UT
SML-311DT
SML-311WT
SML-311YT
0.1
1.0
1.5
2.0
2.5
-20
0
20
40
60
80
100
FORWARD VOLTAGE : V
F
[V]
ATMOSPHERE TEMPERATURE : Ta [ºC]
Fig.3 Luminous Intensity - Forward Current
SML-311UT
SML-311DT
SML-311WT
SML-311YT
Fig.4 Derating
MAXIMUM FORWARD CURRENT : I
F
[mA]
30
100
RELATIVE LUMINOUS INTENSITY [a.u.]
10
20
1.0
10
SML-311UT
SML-311DT
SML-311WT
SML-311YT
0.1
0.1
Ta=25ºC
1
10
100
0
-40
-20
0
20
40
60
80
100
FORWARD CURRENT : I
F
[mA]
AMBIENT TEMPERATURE : Ta [ºC]
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
3/9
2014.12 - Rev.D
SML-31 Series
lElectrical
Characteristics Curves
Data Sheet
Fig.1 Forward Current - Forward Voltages
SML312BC4T
SML312EC4T
SML312BCT
SML312ECT
Fig.2 Luminous Intensity -
Atmosphere Temperature
RELATIVE LUMINOUS INTENSITY [a.u.]
1.6
I
F
=20mA
100
Ta=25ºC
FORWARD CURRENT : I
F
[mA]
1.4
1.2
10
1.0
0.8
0.6
0.4
-40
SML312BC4T
SML312EC4T
SML312BCT
SML312ECT
1
2.5
3.0
3.5
4.0
-20
0
20
40
60
80
100
FORWARD VOLTAGE : V
F
[V]
ATMOSPHERE TEMPERATURE : Ta [ºC]
Fig.3 Luminous Intensity - Forward Current
5
Fig.4 Derating
30
4
MAXIMUM FORWARD CURRENT : I
F
[mA]
RELATIVE LUMINOUS INTENSITY [a.u.]
SML312BC4T
SML312EC4T
SML312BCT
SML312ECT
SML312BC4T
SML312EC4T
SML312BCT
SML312ECT
20
3
2
10
1
Ta=25ºC
0
0
5
10
15
20
25
30
0
-40
-20
0
20
40
60
80
100
FORWARD CURRENT : I
F
[mA]
AMBIENT TEMPERATURE : Ta [ºC]
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© 2014 ROHM Co., Ltd. All rights reserved.
4/9
2014.12 - Rev.D
SML-31 Series
lViewing
Angle
SCANNING ANGLE (deg)
X
Y
Data Sheet
SML-310 / SML-311 series
X’
Y’
SCANNING ANGLE (deg)
30°
40°
50°
60°
70°
80°
90°
100
50
0
50
20°
10°
0°
10°
20°
30°
40°
50°
60°
70°
80°
90°
100
SML-310 / SML-311 series
30°
40°
50°
60°
20°
10°
0°
10°
20°
30°
40°
50°
60°
70°
80°
70°
80°
90°
100
50
0
50
90°
100
RELATIVE INTENSITY
RELATIVE INTENSITY
SCANNING ANGLE (deg)
X
Y
30°
40°
50°
60°
20°
10°
0°
10°
SML312BCT/ECT
SML312BC4T/EC4T
X’
Y’
SCANNING ANGLE (deg)
30°
40°
50°
60°
70°
80°
90°
100
50
0
50
20°
10°
0°
10°
20°
30°
40°
50°
60°
70°
80°
90°
100
SML312BCT/ECT
SML312BC4T/EC4T
20°
30°
40°
50°
60°
70°
80°
70°
80°
90°
100
50
0
50
90°
100
RELATIVE INTENSITY
RELATIVE INTENSITY
lRank
Reference of Brightness
Red(V,U)
Rank
Iv (mcd)
SML-311UT*
/
*
1
SML-310VT*
G
H
J
K
L
M
10 to 16
(Ta=25ºC, I
F
＝20mA,
*1
: I
F
＝2mA)
N
16 to 25
P
25 to 40
Q
40 to 63
R
63 to 100
S
T
U
V
W
X
1.0 to 1.6 1.6 to 2.5 2.5 to 4.0 4.0 to 6.3 6.3 to 10
100 to 160 160 to 250 250 to 400 400 to 630
630 to 1000 1000 to 1600
Orange(D)
Rank
Iv (mcd)
SML-311DT
G
H
J
K
L
M
10 to 16
(Ta=25ºC, I
F
＝20mA)
N
16 to 25
P
25 to 40
Q
40 to 63
R
63 to 100
S
T
U
V
W
X
1.0 to 1.6 1.6 to 2.5 2.5 to 4.0 4.0 to 6.3 6.3 to 10
100 to 160 160 to 250 250 to 400 400 to 630
630 to 1000 1000 to 1600
Yellow(Y,W)
Rank
Iv (mcd)
SML-311Y T*
/
*
1
SML-311WT*
/
*
1
SML-310Y T*
G
H
J
K
L
M
10 to 16
(Ta=25ºC, I
F
＝20mA,
*1
: I
F
＝2mA)
N
16 to 25
P
25 to 40
Q
40 to 63
R
63 to 100
S
T
U
V
W
X
1.0 to 1.6 1.6 to 2.5 2.5 to 4.0 4.0 to 6.3 6.3 to 10
100 to 160 160 to 250 250 to 400 400 to 630
630 to 1000 1000 to 1600
Green (M, P, E)
Rank
Iv (mcd)
SML-310MT*
SML-310PT*
SML-312ECT*
SML-312EC4T*
G
H
J
K
L
M
10 to 16
(Ta=25ºC, I
F
＝20mA)
N
16 to 25
P
25 to 40
Q
40 to 63
R
63 to 100
S
T
U
V
W
X
1.0 to 1.6 1.6 to 2.5 2.5 to 4.0 4.0 to 6.3 6.3 to 10
100 to 160 160 to 250 250 to 400 400 to 630
630 to 1000 1000 to 1600
Blue (B)
Rank
Iv (mcd)
SML-312BC4T*
SML-312BCT*
G
H
J
K
L
M
10 to 16
(Ta=25ºC, I
F
＝20mA)
N
16 to 25
P
25 to 40
Q
40 to 63
R
63 to 100
S
T
U
V
W
630 to 1000
1.0 to 1.6 1.6 to 2.5 2.5 to 4.0 4.0 to 6.3 6.3 to 10
100 to 160 160 to 250 250 to 400 400 to 630
* : Brightness on specification sheet include tolerance of w ithin ±10%.
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
5/9
2014.12 - Rev.D
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