Data Sheet
SML-31series
1608(0603)
1.6×0.8mm(t=0.8mm)
Features
・
1608standardsize(1.6×0.8mm,t=0.8mm)
・
Abundantcolorvariationswithdiverseluminousintensitytypes
Color
T
ype
V
M
U
P
D
E
Y
B
W
Product Specifications
PartNo.
■
SML-310VT
■
SML-311UT
■
SML-311DT
■
SML-310DT
■
SML-311WT
■
SML-311YT
■
SML-310YT
■
SML-310MT
■
SML-310PT
■
SML312ECT
■
SML312EC4T
■
SML312BCT
■
SML312BC4T
LED
chip
GaAsPonGaP
AlGaInP
onGaAs
GaAsPonGaP
AIGaInP
onGaAs
GaAsPonGaP
GaP
Absolutemaximumratings(Ta＝25℃)
Electricalandopticalcharacteristics(Ta＝25℃)
Emitting Power
ForwardvoltageV
F
ReversecurrentI
R
DominontwavelengthλD LuminousintensityI
V
Forward Peakforward Reverse Operating
Storage
color dissipation current
current
voltage temperature temperature Typ.
Min. Typ. Max.
Max.
Min. Typ.
P
D
(mW) I
F
(mA) I
FP
(mA) V
R
(V)
Topr(℃)
Tstg(℃)
(V) I
F
(mA) (μA) V
R
(V) (nm) (nm) (nm) I
F
(mA) (mcd) (mcd) I
F
(mA)
Red
55
44
Orange
55
44
20
Yellowish
Green
Green
Bluish
Green
55
60
※1
4
-40to+85
2
1.8
2
1.8
2.1
2.2
3.3
84
Blue
100
※2
5
-40to+100
3.2
3.3
3.2
20
5
464
20
2
20
2
100
4
625
615
602
587
584
567
557
520
630
620
605
590
587
570
560
527
525
470
635
625
608
593
590
573
563
535
20
20
2
20
2
1.4
0.9
1.6
2.2
0.9
2.2
3.6
1.4
90
36
22
4
2.5
3.15
6.3
2.5
6.3
16
4
200
90
63
46
20
20
2
20
2
Yellow
-30to+85
InGaN
476
※1:Duty1/5,200Hz/※2:Duty1/10,1kHz
Dimensions
Recommended Solder Pattern
Viewing Angle
SML-310 / SML-311 series
1.6
1.2
X
Y
SCANNING ANGLE (deg)
SCANNINGANGLE(deg)
20°
30°
40°
50°
60°
10°
0°
10°
20°
30°
40°
50°
60°
70°
80°
50
0
50
90°
100
60°
70°
80°
90°
100
50°
X’
Y’
SCANNING ANGLE (deg)
SCANNINGANGLE(deg)
20°
30°
40°
10°
0°
10°
20°
30°
40°
50°
60°
70°
80°
50
0
50
90°
100
0.8
70°
80°
90°
100
RELATIVE INTENSITY (%)
RELATIVEINTENSITY(%)
RELATIVE INTENSITY (%)
RELATIVEINTENSITY(%)
0.8
0.8
0.85
0.8
0.8
Cathode mark
0.25
SML312 series
SCANNING ANGLE (deg)
SCANNINGANGLE(deg)
X
Y
SCANNING ANGLE (deg)
SCANNINGANGLE(deg)
X’
Y’
20°
30°
40°
50°
60°
10°
0°
10°
20°
30°
40°
50°
60°
70°
80°
20°
30°
40°
50°
10°
0°
10°
20°
30°
40°
50°
60°
70°
80°
SML312BCT/ECT
SML312BC4T/EC4T
80°
90°
100
60°
70°
Terminal
1.0
70°
80°
90°
100
50
0
50
RELATIVE INTENSITY (%)
RELATIVEINTENSITY(%)
90°
100
RELATIVE INTENSITY (%)
RELATIVEINTENSITY(%)
50
0
50
90°
100
Tolerance:±0.1
(unit:mm)
(unit:mm)
© 2012 ROHM Co., Ltd. All rights reserved.
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1/3
2012.11 - Rev.C
SML-31 series
Electrical Characteristics Curves
Forward Current-Forward Voltage
■
100
■
■
FORWARD CURRENT：I
F
(mA)
FORWARD CURRENT：I
F
(mA)
10
FORWARD CURRENT : I
F
(mA)
■
SML-310VT
■
SML-310DT
■
SML-310MT
■
SML-310PT
■
SML-310YT
100
Ta=25°C
■
■
SML-311UT
■
SML-311DT
■
SML-311WT
■
SML-311YT
100
Ta=25°C
■
■
■
SML312BC4T
■
SML312EC4T
■
SML312BCT
■
SML312ECT
10
10
1.0
1
1.0
1.5
2.0
2.5
3.0
0.1
1.0
1.5
2.0
2.5
1
2.5
3.0
3.5
4.0
FORWARD VOLTAGE：V
F
(V)
FORWARD VOLTAGE：V
F
(V)
FORWARD VOLTAGE : V
F
(V)
Luminous Intensity-Atmosphere Temperature
RELATIVE LUMINOUS INTENSITY (a.u.)
RELATIVE LUMINOUS INTENSITY (a.u.)
RELATIVE LUMINOUS INTENSITY (a.u.)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
-40
I
F
=20mA
■
■
■
■
SML-310VT
■
SML-310DT
■
SML-310YT
■
SML-310MT
■
SML-310PT
1.6
1.4
1.2
1.0
0.8
0.6
0.4
-40
I
F
=20mA
■
■
SML-311UT
■
SML-311DT
■
SML-311WT
■
SML-311YT
1.6
1.4
1.2
1.0
0.8
0.6
0.4
-40
I
F
=20mA
■
■
SML312BC4T
■
SML312EC4T
■
SML312BCT
■
SML312ECT
ATMOSPHERE TEMPERATURE：Ta (°C)
-20
0
20
40
60
80
100
ATMOSPHERE TEMPERATURE：Ta (°C)
-20
0
20
40
60
80
100
-20
0
20
40
60
80
100
ATMOSPHERE TEMPERATURE : Ta (°C)
Luminous Intensity-Forward Current
RELATIVE LUMINOUS INTENSITY (a.u.)
RELATIVE LUMINOUS INTENSITY (a.u.)
RELATIVE LUMINOUS INTENSITY (a.u.)
3.0
2.5
2.0
1.5
1.0
0.5
0
0
10
20
30
40
50
60
f=1kHz
■
■
SML-310VT
■
SML-310DT
■
SML-310YT
■
SML-310MT
■
SML-310PT
100
Ta=25°C
■
■
SML-311UT
■
SML-311DT
■
SML-311WT
■
SML-311YT
5
Ta=25°C
■
4
■
SML312BC4T
■
SML312EC4T
■
SML312BCT
■
SML312ECT
10
3
2
1.0
1
FORWARD CURRENT：I
F
(mA)
0.1
0.1
FORWARD CURRENT：I
F
(mA)
1
10
100
0
0
5
10
15
20
25
30
FORWARD CURRENT : I
F
(mA)
Deratings
■
MAXIMUM FORWARD CURRENT : IF (mA)
30
MAXIMUM FORWARD CURRENT : IF (mA)
MAXIMUM FORWARD CURRENT : IF (mA)
■
SML-310VT
■
SML-310DT
■
SML-310YT
■
SML-310MT
■
SML-310PT
■
30
■
SML-311UT
■
SML-311DT
■
SML-311WT
■
SML-311YT
■
30
■
SML312BC4T
■
SML312EC4T
■
SML312BCT
■
SML312ECT
20
20
20
10
10
10
0
-40
AMBIENT TEMPERATURE：Ta (°C)
-20
0
20
40
60
80
100
0
-40
AMBIENT TEMPERATURE：Ta (°C)
-20
0
20
40
60
80
100
0
-40
-20
0
20
40
60
80
100
AMBIENT TEMPERATURE : Ta (°C)
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
2/3
2012.11 - Rev.C
SML-31 series
Rank Reference of Brightness
Red (V, U)
Package
size(mm)
Mini-mold
ChipLEDs
Luminous
Intensity
(mcd)
Height(mm)
G
H
J
K
L
M
N
16to25
P
25to40
Q
R
S
T
U
V
(Ta=25˚C,I
F
＝20mA)
W
X
1.0to1.6 1.6to2.5 2.5to4.0 4.0to6.3 6.3to10 10to16
SML-311UT
※/※1
SML-310VT
※
40to63 63to100 100to160 160to250 250to400 400to630 630to1000 1000to1600
1608
0.8
Orange (D)
Package
size(mm)
Mini-mold
ChipLEDs
Luminous
Intensity
(mcd)
Height(mm)
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
(Ta=25˚C,I
F
＝2mA)
W
X
1.0to1.6 1.6to2.5 2.5to4.0 4.0to6.3 6.3to10 10to16 16to25 25to40 40to63 63to100 100to160 160to250 250to400 400to630 630to1000 1000to1600
SML-311DT
1608
0.8
Yellow (Y, W)
Package
size(mm)
Mini-mold
ChipLEDs
Luminous
Intensity
(mcd)
Height(mm)
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
(Ta=25˚C,I
F
＝20mA)
W
X
1.0to1.6 1.6to2.5 2.5to4.0 4.0to6.3 6.3to10 10to16 16to25 25to40 40to63 63to100 100to160 160to250 250to400 400to630 630to1000 1000to1600
SML-311YT
※/※1
SML-311WT
※/※1
1608
0.8
SML-310YT
※
Green (M, P, E)
Luminous
F
G
H
J
K
L
Intensity
Package
size(mm)
Height(mm) (mcd)
0.63to1.0 1.0to1.6 1.6to2.5 2.5to4.0 4.0to6.3 6.3to10
M
10to16
N
16to25
P
25to40
Q
40to63
R
S
T
U
V
(Ta=25˚C,I
F
＝20mA)
W
X
63to100 100to160 160to250 250to400 400to630 630to1000 1000to1800
SML312EC4T
※
Mini-mold
ChipLEDs
1608
0.8
SML-310PT
※
SML-310MT
※
SML312ECT
※
Blue (B)
Luminous
G
H
J
K
L
M
Intensity
Package
size(mm)
Height(mm) (mcd)
0.9to1.4 1.4to2.2 2.2to3.6 3.6to5.6 5.6to9.0 9to14
N
P
Q
R
S
T
U
(Ta=25˚C,I
F
＝20mA)
V
W
14to22 22to36 36to56 56to90 90to140 140to220 220to360 360to560 560to900
SML312BC4T
SML312BCT
※Brightnessonspecificationsheetincludetoleranceofwithin±10%.※1
I
F
=2mA
：
Mini-mold
ChipLEDs
1608
0.8
Part No. Construction
∗
“−”
will be taken out for
emitting color B/E series.
Special Code will be applied for
Emitting color B/E series.
S M L
Series name
3 1 0
Package type
Chip Type
D
Emitting Color
T
Resin Color
T 8 6
Taping Specifications
K
Rank sign (Brightness Rank)
∗
0
1
2
Standard Type
Low Current Type
High Brightness Type
V
U
D
W
Y
M
P
E
B
Red:630nm
Red:620nm
Orange:605nm
Yellow:590nm
Yellow:587(590)nm
Yellowish-Green:572nm
Green:560nm
Bluish-Green:527nm
Blue:470(466)nm
T
W
Transparent Colorless
MilkyWhite
T86
Cathode at sprocket hole side
T87
Reverse of T86
∗
Concerning the Brightness rank
• Please refer to the rank chart above for luminous intensity classification.
• Part name is individual for each rank.
• When shipped as sample, the part name will be a representative part name.
General products are free of ranks. Please contact sales if rank appointment is needed.
Packing Specification
ROHMLEDproductsarebeingshippedwithdesiccant(silicagel)concludedinmoisture-proofbags.
Pastingthemoisturesensitivelabelontheoutersurfaceofthemoisture-proofbagsorenclosingthehumidityindicationcardinsidethebagisavailableuponrequest.
Pleasecontactthenearestsalesofficeordistributerifnecessary.
© 2012 ROHM Co., Ltd. All rights reserved.
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3/3
2012.11 - Rev.C
Notice
Notes
1) The information contained herein is subject to change without notice.
2) Before you use our Products, please contact our sales representative and verify the latest specifica-
tions :
3) Although ROHM is continuously working to improve product reliability and quality, semicon-
ductors can break down and malfunction due to various factors.
Therefore, in order to prevent personal injury or fire arising from failure, please take safety
measures such as complying with the derating characteristics, implementing redundant and
fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no
responsibility for any damages arising out of the use of our Poducts beyond the rating specified by
ROHM.
4) Examples of application circuits, circuit constants and any other information contained herein are
provided only to illustrate the standard usage and operations of the Products. The peripheral
conditions must be taken into account when designing circuits for mass production.
5) The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly,
any license to use or exercise intellectual property or other rights held by ROHM or any other
parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of
such technical information.
6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communi-
cation, consumer systems, gaming/entertainment sets) as well as the applications indicated in
this document.
7) The Products specified in this document are not designed to be radiation tolerant.
8) For use of our Products in applications requiring a high degree of reliability (as exemplified
below), please contact and consult with a ROHM representative : transportation equipment (i.e.
cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety
equipment, medical systems, servers, solar cells, and power transmission systems.
9) Do not use our Products in applications requiring extremely high reliability, such as aerospace
equipment, nuclear power control systems, and submarine repeaters.
10) ROHM shall have no responsibility for any damages or injury arising from non-compliance with
the recommended usage conditions and specifications contained herein.
11) ROHM has used reasonable care to ensur the accuracy of the information contained in this
document. However, ROHM does not warrants that such information is error-free, and ROHM
shall have no responsibility for any damages arising from any inaccuracy or misprint of such
information.
12) Please use the Products in accordance with any applicable environmental laws and regulations,
such as the RoHS Directive. For more details, including RoHS compatibility, please contact a
ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting
non-compliance with any applicable laws or regulations.
13) When providing our Products and technologies contained in this document to other countries,
you must abide by the procedures and provisions stipulated in all applicable export laws and
regulations, including without limitation the US Export Administration Regulations and the Foreign
Exchange and Foreign Trade Act.
14) This document, in part or in whole, may not be reprinted or reproduced without prior consent of
ROHM.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
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