Data Sheet
1.74
0.6
4
4.5
Anode Index
unit :mm
Tolerance : 0.2
unit : mm
25
20
15
10
5
0
0 1 2 3 4 5 6 7
Luminous Intensity (cd)
0.48
0.44
0.40
0.36
0.32
0.28
0.24
0.26 0.30 0.34 0.38 0.42 0.46 0.50 0.54
CIE x
High Color Rendering (AW)
High Color Rendering (BW)
Standard (CW)
Standard (DW)
(5000K)
(4200K)
(3500K)
(2900K)
Part No.
Chip
Structure
Emitting
Color
Absolute Maximum Ratings (Ta25)
Electrical and Optical Characteristics (Ta25)
Power
Dissipation
PD(mW)
Forward
Current
IF(mA)
Peak Forward
Current
IFP(mA)
Reverse
Voltage
VR(V)
Operating
Temperature
Topr()
Storage
Temperature
Tstg()
Forward Voltage VFChromaticity CoordinatesLuminous Intensity IV Luminous Flux V
Typ.
(V)
IF(mA) (x, y) IF(mA)
Min.
(mcd)
Typ.
(mcd)
IF(mA)
Typ.
(lm)
IF(mA)
SMLK34WBECW
InGaN
White
360 90 300
- -40 to +100 -40 to +100 3.4 60
(0.30, 0.28)
60
4000 5500
60
(14)
60
SMLK34WBEDW
(0.34, 0.34)
SMLK34WBEAW
High color rendering
index (5000K)
(0.345, 0.351)
2200 3800
(9.5)
SMLK34WBEBW
High color rendering
index (3000K)
(0.44, 0.40)
RELATIVE INTENSITY (%)
10?/DIV>
10?/DIV>
20?/DIV>
20?/DIV>
40?/DIV>
50?/DIV>
70?/DIV>
80?/DIV>
40?/DIV>
50?/DIV>
70?/DIV>
80?/DIV>
0
50
100
50
100
0?/DIV>
30?/DIV>
60?/DIV>
90?/DIV>
30?/DIV>
60?/DIV>
90?/DIV>
SCANNING ANGLE (deg)
XY
RELATIVE INTENSITY (%)
10?/DIV>
10?/DIV>
20?/DIV>
20?/DIV>
40?/DIV>
50?/DIV>
70?/DIV>
80?/DIV>
40?/DIV>
50?/DIV>
70?/DIV>
80?/DIV>
0
50
100
50
100
0?/DIV>
30?/DIV>
60?/DIV>
90?/DIV>
30?/DIV>
60?/DIV>
90?/DIV>
SCANNING ANGLE (deg)
XY
Chromaticity Diagram
Duty1/10 1kHz( ): Reference
Directivity (deg)
RELATIVE INTENSITY (%)
Directivity (deg)
RELATIVE INTENSITY (%)
Dimensions
Viewing Angle
Recommended Solder Pattern
Specifications
IV-豽
Color
Type
WB
SMLK34 series
PSML2
Specifications
High heat radiation package from ROHM original flat frame
structure.
Warm white, True white.
4520 1808
4.52.0mm t=0.6mm
1/3
?2011 ROHM Co., Ltd. All rights reserved.
www.rohm.com
2011.05 - Rev.B
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