Directivity (Typ.)
IF
(mA)
Typ.
(V)
Typ.
(mcd)
Typ.
(nm)
λp
Typ.
(nm)
Min.
(mcd)
IF
(mA)
IF
(mA)
Max.
(µA)
VR
(V)
∆λ
Absolute Maximum Ratings (Ta=25∞C)
Electrical Optical Characteristics (Ta=25∞C)
Dimensions (Unit:mm)
(0.18)
0.6
1.1
1.5
1.3
0.6
0.45
Terminal
Cathode mark
2 1
4 3
1
3
2
4
Red, Orange, Yellow
Green
60 4 -30 to +85 -40 to +85
Peak
forward
current
IFP
(mA)
:Duty 1/5, pulse width 1ms.
Part No.
Power
dissipation
PD
(mW)
Forward
current
IF
(mA)
Reverse
voltage
VR
(V)
Operating
temperature
Topr
(°C)
Storage
temperature
Tstg
(°C)
Emitting
color
20 100 4 20 20
Milky White
570 5.6 16402.2
1.9 590 22 6315
40570 5.6 162.2
16611 22 631.9
2.2 40570 5.6 16
15630 22 631.9
(Unit:mm)
0.5
1.3
0.6
2.45
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.
Packaging Specifications (Unit:mm)
Recommended Pad Layout
Tape Specifications:T86 <4,000pcs/reel>
SML-521 Series
Yellow
Orange
Red
Feeding direction
φ1.5
(1.65) (0.8)
8
3.5
5.5
1.95
Reel Specifications
Label Position
φ13
φ60
φ180
Part No.
Forward
voltage
VF
Light wavelength
Reverse
current
IR
Brightness
IV
Resin Color
Peak
Half-wave
Dual-Color
0605 <1.5 1.3 t=0.6mm> Standard Type
Green
(Yellowish Green)
Green
(Yellowish Green)
Green
(Yellowish Green)
SML-521MYW
SML-521MDW
SML-521MUW
2.1 18570 14 40
15630 22 631.9
SML-522MUW
SML-521MYW
SML-521MDW
SML-521MUW 50 20
70 25
70 25
Green
(Yellowish Green)
Red
SML-522MUW 50 20
52
50 20
70 25
50 20
LED Die
Rev.C
Tolerance:±0.1
Tolerance:±0.2
Tolerance:±0.2
2±0.05
4±0.1
1.75±0.1
0 to 0.5
+0.1
0
11.4±1
0.45 to 0.05
+1
0
0
−3
RELATIVE LUMINOUS INTENSITY (%)
Angular Displacement (deg)
Angular Displacement (deg)
RELATIVE LUMINOUS INTENSITY (%)
0 50 10050100
0°
30°
60°
90°
30°
60°
90°
Green, Red,Orange,Yellow
0 50 10050100
0°
30°
60°
90°
30°
60°
90°
Red,Orange,Yellow
Green
Green
YX
Y’X’
Red, Orange, Yellow
Green
Red, Orange, Yellow
SML-521MUW
SML-522MUW
SML-521MDW
SML-521MYW
Emitting Color
Material
Package Size(mm)
Green(Yellowish Green)
Orange RedYellow
AlGaInP on GaAsGaP
Part No.
1513(0605) 1.5×1.3(t=0.6)
1:
AlGaInP on GaAs
∗1
∞
∞
Electrical Characteristic Curves
Forward Current - Forward Voltage
Relative Luminous Intensity - Case Temperature
Ratio of Maximum Tolerable Peak Current - Pulse Duration
Derating
Relative Luminous Intensity - Forward Current
Rev.C
1
3
10
RATIO of MAXIMUM TOLERABLE PEAK CURRENT
to MAXIMUM TOLERABLE DC CURRENT
IF
peak
Max.
IF
Max.
PULSE DURATION : Tw
(µs)
10 102103104
----
143
SML-522MUW <Green>
SML-522MUW <Red>
20
10
0
010
20 30 40 50 70 8060 90
30
AMBIENT TEMPERATURE : Ta (°C)
MAXIMUM FORWARD CURRENT : IF
Max. (mA)
1
2
2.4
3
4
5
6
RATIO of MAXIMUM TOLERABLE PEAK CURRENT
to MAXIMUM TOLERABLE DC CURRENT
IF
peak
Max.
IF
Max.
PULSE DURATION : Tw
(µs)
10510
2103104
50kHz
20kHz
10kHz
5kHz
2kHz
1kHz
500Hz
200Hz
100Hz
SML-521MYW <Yellow>
----
----
143 143
SML-521MYW <Yellow>
----
----
143
143
SML-521MYW <Green>
SML-521MDW <Green>
SML-521MUW <Green>
SML-521MYW <Yellow>
SML-521MDW <Orange>
SML-521MUW <Red>
SML-521MYW <Green>
SML-521MDW <Green>
SML-521MUW <Green>
SML-521MYW <Yellow>
SML-521MDW <Orange>
SML-521MUW <Red>
SML-522MUW <Green>
SML-522MUW <Red>
0 102030405060
300
250
200
150
100
50
0
RELATIVE LUMINOUS INTENSITY (%)
PEAK FORWARD CURRENT : IF
peak
(mA)
RELATIVE LUMINOUS INTENSITY(%)
PEAK FORWARD CURRENT : IF
peak
(mA)
DC
0
10
50
100
150
200
0 102030405060
Ta=25°CTa=25°C
SML-521MYW <Green>
SML-521MDW <Green>
SML-521MUW <Green>
----
143
SML-521MYW <Yellow>
----
143
SML-521MYW <Yellow>
SML-521MDW <Orange>
SML-521MUW <Red>
SML-522MUW <Green>
SML-522MUW <Red>
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
40-20 -10 20 5030010 60 70 80
RELATIVE LUMINOUS INTENSITY
IF=20mA
CASE TEMPERATURE : Tc
(°C)
100
10
1.5 2 32.5
1
FORWARD VOLTAGE : VF
(V)
FORWARD CURRENT : IF
(mA)
Ta=25°C
SML-521MYW <Yellow>
SML-521MYW <Green>
SML-521MDW <Green>
SML-521MUW <Green>
SML-522MUW <Green>
SML-521MYW <Yellow>
SML-521MDW <Orange>
SML-521MUW <Red>
SML-522MUW <Red>
----
----
----
----
143
143
SML-521MYW <Yellow>
----
----
143
143
SML-521MYW <Green>
SML-521MDW <Green>
SML-521MUW <Green>
SML-521MYW <Yellow>
SML-521MDW <Orange>
SML-521MUW <Red>
SML-522MUW <Green>
SML-522MUW <Red>
50kHz
20kHz
10kHz
5kHz
2kHz
1kHz
500Hz
200Hz
100Hz
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.
