20
100
4
660
650
610
2.2
3.6
1.4
1.4
6.3
16
4
4
585
570
3.6
16
555
25
40
20
20
1.75
2.0
2.1
2.2
Transparent
Clear
SML-310PT
SML-310MT
SML-310YT
SML-310DT
SML-310VT
SML-310LT
SML-310PT
SML-310MT
SML-310YT
SML-310DT
SML-310VT
SML-310LT
Pure Green
Green
Yellow
Orange
Red
Red
60
25
55
20
60
75
4
-30 to +85
-40 to +85
I
FP
measured under duty
1/ 5,pulse width 1ms.
SURFACE MOUNT LED LAMPS
External DimensionsUnitmm
Standard Type Mini-molded chip LEDs
SML-310 Series
(Typ.)
Directivity
The recommended thickness of the screen mask
for soldering is between 100 and 200m. The
hole size of the screen mask should be same as
the recommended land pattern or smaller.
Packaging SpacificationsUnitmm
Recommemded Pad Layout
1608
(0603)
1.6x0.8
t=0.8
I
F
(mA)
Typ.
(V)
Typ.
(mcd)
Typ.
(nm)
p
Typ.
(nm)
Min.
(
mcd
)
I
F
(mA)
I
F
(mA)
Max.
(
A)
Tolerance:
0.1
V
R
(V)
Absolute Maximum RatingsTa=25
Electrical Optical CharacteristicsTa=25
0.8
0.8
0.85
0.8
Feeding direction
2
4
1.5
1.75
0.5
1.1
1.0
8
3.5
5.5
1.9
Lavel Position
13
60
180
11.4
Package Size
mm
Tape SpacificationsT863,000pcsreel
Reel Spacifications
Pure Green
GaAsP on Gap
Green
Yellow
Orange
Red
Relative brightness (
%)
0
50
100
50
100
0
30
60
90
30
60
90
0.25
0.8
1.2
1.6
0.2
0
0.8
1.0
Terminal
Cathode mark
Unitmm
GaP
GaAlAs on GaAs
Y'
X'
Peak
forward
current
I
FP
mA
Part No.
Power
dissipation
P
D
mW
Forward
current
I
F
mA
Reverse
voltage
V
R
V
Operating
temperature
T
opr
C
Stotage
temperature
T
stg
C
Emitting
color
Part No.
Forward
voltage
V
F
Light wavelength
Reverse
current
I
R
Brightness
I
V
Resin Color
Peak Half-wave
555nm
SML-310PT
570nm
SML-310MT
585nm
SML-310YT
610nm
SML-310DT
650nm
SML-310VT
660nm
SML-310LT
SML-310PT
SML-310MT
SML-310YT
SML-310DT
SML-310VT
SML-310LT
SURFACE MOUNT LED LAMPS
Electrical Characteristic Curves
Forward Current - Forward Voltage
FORWARD VOLTAGE : V
F
(V)
FORWARD CURRENT : I
F
(
mA
)
20
10
5.0
2.0
1.0
0.5
0.2
0.1
1.5
2.0
2.5
3.0
50
Ta=25
Relative Luminous Intensity - Case Temperature
1.4
1.2
1.0
0.8
0.6
0.4
40
-20
20
0
60
80
1.6
RELATIVE LUMINOUS INTENSITY
I
F
=20mA
CASE TEMPERATURE : Tc
()
Ratio of Maximum Tolerable Peak Current - Pulse Duration
Derating
Relative Luminous Intensity - Forward Current
3.0
2.5
2.0
1.5
1.0
0.5
0
0
10
20
30
40
50
60
RELATIVE LUMINOUS INTENSITY
PEAK FORWARD CURRENT : I
F
peak
(mA)
15%
20%
10%
5%
f=1kHz
DC
DF=50%
20
10
0
0
10
20
30
40
50
70
80
60
90
30
AMBIENT TEMPERATURE : Ta
()
MAXIMUM FORWARD CURRENT : I
F
M
ax.
(mA)
1
3
10
RATIO of MAXIMUM TOLERABLE PEAK CURRENT
PULSE DURATION : Tw
(s)
1
10
100
1000
10000
50kHz
20kHz
10kHz
5kHz
2kHz
1kHz
500Hz
200Hz
100Hz
SML-310PT
SML-310MT
SML-310YT
SML-310DT
SML-310VT
SML-310LT
SML-310PT
SML-310MT
SML-310YT
SML-310DT
SML-310VT
SML-310LT
SML-310PT
SML-310MT
SML-310YT
SML-310DT
SML-310VT
SML-310LT
SML-310PT
SML-310MT
SML-310YT
SML-310DT
SML-310VT
SML-310LT
3.0
2.5
2.0
1.5
1.0
0.5
0
0
10
20
30
40
50
60
RELATIVE LUMINOUS INTENSITY
PEAK FORWARD CURRENT : I
F
peak
(mA)
f=1kHz
DC
15%
20%
10%
5%
DF=50%
Appendix
Appendix1-Rev1.1
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.
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.
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.
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