Data Sheet
2.5 or 5.0
2.01.0 ±0.1
2.5
24.0Min.
Cathode
5.4
φ3.8
φ3.1
0.4
unit : mm
Tolerance : ±0.2
unit : mm
RELATIVE INTENSITY(%)
10°
10° 20°
20°
40°
50°
70°
80°
40°
50°
70°
80°
05010050100
30°
60°
90°
30°
60°
90°
ANGULAR DISPLACEMENT(deg)
RELATIVE INTENSITY(%)
10°
10° 20°
20°
40°
50°
70°
80°
40°
50°
70°
80°
05010050100
30°
60°
90°
30°
60°
90°
ANGULAR DISPLACEMENT(deg)
SLR-343 Series SLR343BC7T / SLR343WBC7T
Directivity (deg)
RELATIVE INTENSITY (%)
Directivity (deg)
RELATIVE INTENSITY (%)
RELATIVE INTENSITY(%)
10°
10° 20°
20°
40°
50°
70°
80°
40°
50°
70°
80°
0 50 10050100
30°
60°
90°
30°
60°
90°
ANGULAR DISPLACEMENT(deg)
SLR343BCT / ECT / BC4T / EC4T
Directivity (deg)
RELATIVE INTENSITY (%)
Viewing angle 2θ 1/2 / 40: Standard
Part No. Chip
Structure
Emitting
Color
Absolute Maximum Ratings (Ta25) Electrical and Optical Characteristics (Ta25)
Power
Dissipation
P
D
(mW)
Forward
Current
I
F
(mA)
Peak Forward
Current
I
FP
(mA)
Reverse
Voltage
V
R
(V)
Operating
Temperature
Topr()
Storage
Temperature
Tstg()
Forw ard V oltage V
F
Reverse Current I
R
Dominant Wavelength Luminous Intensity I
V
Typ.
(V)
I
F
(mA)
Max.
(μA) VR(V) λD
Typ.(nm)
I
F
(mA)
Min.
(mcd) Typ.
(mcd)
I
F
(mA)
SLR-343VR
GaAsP
on GaP
Red
60 20
6013 -25 to +85 -30 to +100
2.0
10 10 3
630
10
5.6 16
10
SLR-343VC 9.0 25
SLR-343DU
Orange
605 5.6 16
SLR-343DC 9.0 25
SLR-343YY Yellow
2.1
587 3.6 10
SLR-343YC 5.6 16
SLR-343MG
GaP Green 75 25
572
SLR-343MC 9.0 25
SLR-343PG 560 2.2 6.3
SLR-343PC
SLR343ECT
InGaN
Bluish
Green 120 30
10025 -20 to +80 -30 to +100
3.3
20 100 5
527
20
900 2200
20
SLR343EC4T 3.2 525 420 1500
SLR343BCT
Blue
120 30 3.3
470
200 600
SLR343BC7T 105 25
3.2
220 470
SLR343BC4T 120 30 200
SLR343WBC7T White 105 25 (x, y)
(0.31, 0.31) 330 680
Diffused
Clear
SLR
343
BCT / ECT
SLR
343
BC
4
T / EC
4
T
SLR
343
BC
7
T
SLR
343
WBC
7
T
1:Duty1/5, 200Hz, 2:Duty1/10, 1kHz
Specifications
Dimensions Recommended Solder Pattern Viewing Angle
Features
Viewing angle 2θ 1/2 : 40°
Competent to direct mount
Color
Type V D YM
P E B WB
SLR-343 Series
1/4
© 2011 ROHM Co., Ltd. All rights reserved.
www.rohm.com 2011.12 - Rev.C
FORWARD CURRENTIF (mA)
FORWARD VOLTAGEVF
(V)
1.0 1.5 2.0 3.02.5
Ta=25°C
50
20
10
5.0
2.0
1.0
0.5
0.2
0.1
RELATIVE LUMINOUS INTENSITY (a.u.)
ATMOSPHERE TEMPERATURETa
(°C)
1.4
1.2
1.0
0.8
0.6
0.4
-40 -20 0 20 40 60 80 100
RELATIVE LUMINOUS INTENSITY (a.u.)
FOWARD CURRENT:IF
(mA)
0
1.2
1.0
0.8
0.6
0.4
0.2
0 5 10 15 20 25
Ta=25°C
MAXIMUM FORWARD CURRENT:IF(mA)
AMBIENT TEMPERATURETa
(°C)
0
10
20
30
-40 -20 0 20 40 60 80 100
SLR-
343
VR
SLR-
343
VC
SLR-
343
DU
SLR-
343
DC
SLR-
343
YY
SLR-
343
YC
SLR-
343
MG
SLR-
343
MC
SLR-
343
PG
SLR-
343
PC


)25:$5'&855(17,)P$
)25:$5'92/7$*(9)

9
 
 
7D &
RELATIVE LUMINOUS INTENSITY (a.u.)
ATMOSPHERE TEMPERATURETa
(°C)
1.4
1.2
1.0
0.8
0.6
0.4
-40 -20 0 20 40 60 80 100
1.6 IF=20mA
RELATIVE LUMINOUS INTENSITY(a.u.)
FOWARD CURRENT:IF
(mA)
0
0.5
1.0
1.5 Ta=25°C
010 3020
MAXIMUM FORWARD CURRENT:IF(mA)
AMBIENT TEMPERATURETa
(°C)
0
10
20
40
30
-40 -20 0 20 40 60 80 100
SLR-
343
VR
SLR-
343
VC
SLR-
343
DU
SLR-
343
DC
SLR-
343
YY
SLR-
343
YC
SLR-
343
MG
SLR-
343
MC
SLR-
343
PG
SLR-
343
PC
SLR
343
ECT
SLR
343
BCT
SLR
343
EC
4
T
SLR
343
BC
4
T
SLR
343
BC
7
T
SLR
343
WBC