Data Sheet
SLR-343 Series
Features
Color
Type
・Viewing angle 2θ 1/2 : 40°
・Competent to direct mount
V
D
Y
M
P
E
B
WB
Specifications
Viewing angle 2θ 1/2 / 40
: Standard
Chip
Structure
Part No.
Absolute Maximum Ratings (Ta＝25℃)
Electrical and Optical Characteristics (Ta＝25℃)
Emitting
Forward Voltage VF Reverse Current IR Dominant Wavelength Luminous Intensity IV
Power
Forward Peak Forward Reverse Operating
Storage
Color Dissipation Current
Current
Voltage Temperature Temperature Typ.
Max.
Min. Typ.
λD
PD(mW) IF(mA) IFP(mA) VR(V)
Topr(℃)
Tstg(℃)
(V) IF(mA) (μA) VR(V) Typ.(nm) IF(mA) (mcd) (mcd) IF(mA)
■ SLR-343VR
5.6
16
9.0
25
5.6
16
9.0
25
3.6
10
5.6
16
9.0
25
2.2
6.3
630
Red
■ SLR-343VC
2.0
■ SLR-343DU
GaAsP
on GaP
■ SLR-343DC
Orange
60
20
605
■ SLR-343YY
60＊1
Yellow
3
-25 to +85
-30 to +100
10
10
3
587
10
10
■ SLR-343YC
■ SLR-343MG
2.1
572
■ SLR-343MC
GaP
Green
75
25
■ SLR-343PG
560
■ SLR-343PC
■ SLR343ECT
■ SLR343EC4T
Bluish
Green
120
120
30
Blue
105
25
■ SLR343BCT
InGaN
■ SLR343BC7T
3.3
527
900
2200
3.2
525
420
1500
200
600
30
3.3
100＊2
5
-20 to +80
-30 to +100
20
100
5
20
20
470
220
470
■ SLR343BC4T
120
■ SLR343WBC7T
White
Dimensions
105
3.2
30
200
(x, y)
330 680
(0.31, 0.31)
＊1:Duty1/5, 200Hz, ＊2:Duty1/10, 1kHz
25
Recommended Solder Pattern
Viewing Angle
SLR-343 Series
SLR343BC7T / SLR343WBC7T
ANGULAR DISPLACEMENT(deg)
ANGULAR DISPLACEMENT(deg)
Directivity (deg)
20°
φ3.8
10°
0°
10°
30°
40°
40°
φ3.1
Directivity (deg)
Diffused
Clear
20°
30°
50°
50°
0
5.4
10°
30°
40°
50°
60°
70°
80°
80°
90°
100
50
SLR343BC7T
SLR343WBC7T
20°
70°
80°
50
0°
60°
70°
70°
80°
90°
100
10°
50°
60°
60°
1.0 ±0.1 2.0
20°
30°
40°
90°
100
RELATIVE INTENSITY (%)
RELATIVE INTENSITY(%)
50
0
50
RELATIVE
INTENSITY(%) (%)
RELATIVE
INTENSITY
90°
100
□0.4
24.0Min.
2.5 or 5.0
SLR343BCT / ECT / BC4T / EC4T
Directivity (deg)
ANGULAR DISPLACEMENT(deg)
20°
10°
0°
30°
10°
20°
40°
50°
50°
60°
60°
70°
70°
（2.5）
90°
100
Tolerance : ±0.2
（unit : mm）
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80°
80°
Cathode
SLR343BCT / ECT
SLR343BC4T / EC4T
30°
40°
50
0
50
90°
100
RELATIVE
INTENSITY(%) (%)
RELATIVE
INTENSITY
（unit : mm）
1/4
2013.04 - Rev.D
SLR-343 Series
Electrical Characteristics Curves
Forward Current-Forward Voltage
■
FORWARD CURRENT：IF (mA)
■
20
■
10
■
5.0
2.0
■SLR-343VR
■SLR-343VC
■SLR-343DU
■SLR-343DC
■SLR-343YY
■SLR-343YC
■SLR-343MG
■SLR-343MC
■SLR-343PG
■SLR-343PC
1.0
0.5
0.2
0.1
1.0
1.5
2.0
2.5
7D &
)25:$5'&855(17：,)P$
Ta=25°C
50
■ SLR343ECT
■ SLR343BCT
■ SLR343EC4T
■ SLR343BC4T
■ SLR343BC7T
■ SLR343WBC7T
■
■ SLR343ECT
■ SLR343EC4T
■ SLR343BCT
■ SLR343BC4T
■ SLR343BC7T
■ SLR343WBC7T
■
■ SLR343ECT
■ SLR343EC4T
■ SLR343BCT
■ SLR343BC4T
■ SLR343BC7T
■ SLR343WBC7T
■
■ SLR343ECT
■ SLR343EC4T
■ SLR343BCT
■ SLR343BC4T
■ SLR343BC7T
■ SLR343WBC7T
3.0
■
)25:$5'92/7$*(：9)9
FORWARD VOLTAGE：VF (V)
Luminous Intensity-Atmosphere Temperature
RELATIVE LUMINOUS INTENSITY (a.u.)
1.2
1.0
■SLR-343VR
■SLR-343VC
■SLR-343DU
■SLR-343DC
■SLR-343YY
■SLR-343YC
■SLR-343MG
■SLR-343MC
■SLR-343PG
■SLR-343PC
0.8
0.6
0.4
-40
-20
0
20
40
60
80
IF=20mA
1.6
RELATIVE LUMINOUS INTENSITY (a.u.)
■
1.4
1.4
1.2
1.0
0.8
0.6
0.4
-40
100
ATMOSPHERE TEMPERATURE：Ta (°C)
-20
0
20
40
60
80
100
ATMOSPHERE TEMPERATURE：Ta (°C)
Luminous Intensity-Forward Current
RELATIVE LUMINOUS INTENSITY (a.u.)
■
1.0
■
0.8
0.6
■SLR-343VR
■SLR-343VC
■SLR-343DU
■SLR-343DC
■SLR-343YY
■SLR-343YC
■SLR-343MG
■SLR-343MC
■SLR-343PG
■SLR-343PC
0.4
0.2
0
0
5
10
15
20
Ta=25°C
1.5
RELATIVE LUMINOUS INTENSITY (a.u.)
Ta=25°C
1.2
1.0
0.5
0
0
25
FOWARD CURRENT：IF (mA)
10
20
30
FOWARD CURRENT：IF (mA)
Derating
■
20
■SLR-343VR
■SLR-343VC
■SLR-343DU
■SLR-343DC
■SLR-343YY
■SLR-343YC
■SLR-343MG
■SLR-343MC
■SLR-343PG
■SLR-343PC
MAXIMUM FORWARD CURRENT：IF (mA)
MAXIMUM FORWARD CURRENT：IF (mA)
■
30
10
0
-40
-20
0
20
40
60
80
100
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30
20
10
0
-40
-20
0
20
40
60
80
100
AMBIENT TEMPERATURE：Ta (°C)
AMBIENT TEMPERATURE：Ta (°C)
© 2013 ROHM Co., Ltd. All rights reserved.
40
2/4
2013.04 - Rev.D
SLR-343 Series
Rank Reference of Brightness
Red (V)
（Ta=25˚C, IF＝10mA）
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
Viewing Brightness Rank
Brightness 0.40 to 0.63 to 1.0 to 1.6 to 2.5 to 4.0 to 6.3 to 10 to 16 to 25 to 40 to 63 to 100 to 160 to 250 to 400 to
angle
(mcd)
(2ɵ1/2) Resin Color
0.63
1.0
1.6
2.5
4.0
6.3
10
16
25
40
63 100 160 250 400 630
Transparent Colored
SLR-343VC
φ3
40˚
Circular type
Diffused Colored
SLR-343VR
Orange (D)
（Ta=25˚C, IF＝10mA）
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
Viewing Brightness Rank
Brightness 0.40 to 0.63 to 1.0 to 1.6 to 2.5 to 4.0 to 6.3 to 10 to 16 to 25 to 40 to 63 to 100 to 160 to 250 to 400 to
angle
(mcd)
(2ɵ1/2) Resin Color
0.63
1.0
1.6
2.5
4.0
6.3
10
16
25
40
63 100 160 250 400 630
Transparent Colored
SLR-343DC
φ3
40˚
Circular type
Diffused Colored
SLR-343DU
Yellow (Y)
（Ta=25˚C, IF＝10mA）
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
Viewing Brightness Rank
Brightness 0.40 to 0.63 to 1.0 to 1.6 to 2.5 to 4.0 to 6.3 to 10 to 16 to 25 to 40 to 63 to 100 to 160 to 250 to 400 to
angle
(mcd)
(2ɵ1/2) Resin Color
0.63
1.0
1.6
2.5
4.0
6.3
10
16
25
40
63 100 160 250 400 630
Transparent Colored
SLR-343YC
φ3
40˚
Circular type
Diffused Colored
SLR-343YY
Green (M, P)
（Ta=25˚C, IF＝10mA）
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
Viewing Brightness Rank
Brightness 0.40 to 0.63 to 1.0 to 1.6 to 2.5 to 4.0 to 6.3 to 10 to 16 to 25 to 40 to 63 to 100 to 160 to 250 to 400 to
angle
(mcd)
(2ɵ1/2) Resin Color
0.63
1.0
1.6
2.5
4.0
6.3
10
16
25
40
63 100 160 250 400 630
Transparent Colored
SLR-343MC
Diffused Colored
SLR-343MG
φ3
40˚
Circular type
Diffused Colored
SLR-343PG
Transparent Colored
SLR-343PC
Bluish Green (E)
（Ta=25˚C, IF＝20mA）
XJ
XK
XL
XM XN
XP
XQ XR
XS
XT
XU
Viewing Brightness Rank XH
Brightness 150 to 220 to 330 to 470 to 680 to 1000 to 1500 to 2200 to 3300 to 4700 to 6800 to 10000 to
angle
(mcd)
(2ɵ1/2) Resin Color
220 330 473 680 1000 1500 2200 3300 4700 6800 10000 15000
※
SLR343EC4T
Transparent
φ3
40˚
※
Circular type
Colorless
SLR343ECT
Blue (B)
（Ta=25˚C, IF＝20mA）
XJ
XK
XL
XM XN
XP
XQ XR
XS
XT
XU
Viewing Brightness Rank XH
Brightness 150 to 220 to 330 to 470 to 680 to 1000 to 1500 to 2200 to 3300 to 4700 to 6800 to 10000 to
angle
(mcd)
(2ɵ1/2) Resin Color
220 330 473 680 1000 1500 2200 3300 4700 6800 10000 15000
SLR343BC7T
Transparent
φ3
※
40˚
SLR343BC4T
Circular type
Colorless
※
SLR343BCT
White (WB)
（Ta=25˚C, IF＝20mA）
XK
XL
XM XN
XP
XQ XR
XS
XT
XU
Viewing Brightness Rank XJ
Brightness 220 to 330 to 470 to 680 to 1000 to 1500 to 2200 to 3300 to 4700 to 6800 to 10000 to
angle
(mcd)
(2ɵ1/2) Resin Color
330 473 680 1000 1500 2200 3300 4700 6800 10000 15000
φ3 Circular
type
40˚
Transparent Colorless
SLR343WBC7T
※Brightness on specification sheet include tolerance of within ± 10%.
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3/4
2013.04 - Rev.D
SLR-343 Series
Part No. Construction
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2013.04 - Rev.D
Notice
Notes
1) The information contained herein is subject to change without notice.
2) Before you use our Products, please contact our sales representative and verify the latest specifications :
3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors.
Therefore, in order to prevent personal injury or fire arising from failure, please take safety
measures such as complying with the derating characteristics, implementing redundant and
fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no
responsibility for any damages arising out of the use of our Poducts beyond the rating specified by
ROHM.
4) Examples of application circuits, circuit constants and any other information contained herein are
provided only to illustrate the standard usage and operations of the Products. The peripheral
conditions must be taken into account when designing circuits for mass production.
5) The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly,
any license to use or exercise intellectual property or other rights held by ROHM or any other
parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of
such technical information.
6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer systems, gaming/entertainment sets) as well as the applications indicated in
this document.
7) The Products specified in this document are not designed to be radiation tolerant.
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equipment, medical systems, servers, solar cells, and power transmission systems.
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equipment, nuclear power control systems, and submarine repeaters.
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the recommended usage conditions and specifications contained herein.
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