0603<1.6 0.8 t=0.8mm>
Low Current Type(I
F
10mA)
SML-311
Emitting Color
Material
Package Size(mm)
Series
Yellow
Orange
AlGaInP on GaAs
Red
1608(0603) 1.6
×
0.8(t=0.8)
Part No.
SML-311YT
SML-311WT
SML-311DT
SML-311UT
Absolute Maximum Ratings (Ta=25∞C)
Peak
Reverse Operating
Storage
Power Forward
forward
Emitting
dissipation current
voltage temperature temperature
current
color
P
D
I
F
V
R
T
opr
T
stg
I
FP
(mW)
(mA)
(V)
(°C)
(°C)
(mA)
Yellow
Orange
Red
1ms.
Dimensions (Unit:mm)
1.6
1.2
Part No.
SML-311YT
SML-311WT
SML-311DT
SML-311UT
LED Die
44
20
60
4
-30 to +85
-40 to +85
0.8
Cathode mark
0.8
:Duty 1/ 5,pulse width
Electrical Optical Characteristics (Ta=25∞C)
Forward
voltage
V
F
Typ.
(V)
SML-311YT
SML-311WT
SML-311DT
SML-311UT
I
F
(mA)
Part No.
Resin Color
Reverse
current
I
R
Max.
(µA)
V
R
(V)
Light wavelength
Peak Half-wave
λp
∆λ
Typ.
(nm)
590
Typ.
(nm)
15
16
18
2
I
F
(mA)
Brightness
I
V
Terminal
1.0
Min.
(
mcd
)
Typ.
I
F
(mcd) (mA)
Tolerance:
±
0.1
Transparent
Colorless
1.8
2
100
4
611
630
0.9
2.5
2
Directivity (Typ.)
Angular Displacement (deg)
0°
X
Y
30°
0.25
30°
60°
60°
90°
100
50
0
50
90°
100
RELATIVE LUMINOUS INTENSITY (%)
Angular Displacement (deg)
0°
X’
Y’
30°
30°
60°
60°
90°
100
50
0
50
90°
100
RELATIVE LUMINOUS INTENSITY (%)
Recommended Pad Layout
Packaging Specifications (Unit : mm)
Tape Specifications : T86 <3,000pcs / reel>
Reel Specifications
0.8
Feeding direction
0.8 0.85 0.8
4±0.1
2±0.05
1.75±0.1
φ
13
φ
1.5
+
0.1
0
3.5±0.05
1.9
(Unit:mm)
The recommended thickness of the screen mask
for soldering is between 100 and 150µm. The
hole size of the screen mask should be same as
the recommended land pattern or smaller.
1.1
0 to 0.5
5.5
8
1.0
Label Position
11.4±1
Tolerance:±0.2
Tolerance:±0.2
Rev.C
φ
180
−
0
3
φ
60
+1
0
Electrical Characteristic Curves
Forward Current - Forward Voltage
100.0
Ta=25
°C
Relative Luminous Intensity - Case Temperature
----
RELATIVE LUMINOUS INTENSITY
FORWARD CURRENT : I
F
(mA)
SML-311YT
SML-311WT
SML-311DT
SML-311UT
1.6
1.4
----
143
143
SML-311YT
SML-311WT
SML-311DT
SML-311UT
10.0
1.2
1.0
0.8
0.6
0.4
-30 -20 -10 0 10 20 30 40 50 60 70 80
1.0
0.1
1.0
1.5
2.0
2.5
FORWARD VOLTAGE : V
F
(V)
CASE TEMPERATURE : Tc
(°C)
Relative Luminous Intensity - Forward Current
100
Ta=25
°C
Ratio of Maximum Tolerable Peak Current - Pulse Duration
SML-311YT
SML-311WT
SML-311DT
SML-311UT
RATIO of MAXIMUM TOLERABLE PEAK CURRENT I
F
peak
M
ax.
I
F
M
ax.
to MAXIMUM TOLERABLE DC CURRENT
----
10
----
143
143
RELATIVE LUMINOUS INTENSITY
SML-311YT
SML-311WT
SML-311DT
SML-311UT
1kHz
500Hz
200Hz
1000
10kHz
5kHz
3
1
0
0.1
1
10
100
1
1
10
100
2kHz
10000
PEAK FORWARD CURRENT :
(mA)
PULSE DURATION : Tw
(
µ
s)
Derating
MAXIMUM FORWARD CURRENT : I
F
M
ax.
(mA)
20
18
16
14
12
10
8
6
4
2
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
----
SML-311YT
SML-311WT
SML-311DT
SML-311UT
AMBIENT TEMPERATURE : Ta
(
°C
)
100Hz
50kHz
20kHz
10
143
Rev.C
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1
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