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SLR-343 Series
LED lamps
Reflecting small LEDs, directly mountable
(
3.1mm) (no need for solder modification)
SLR-343 Series
The SLR-343 series are small 3.1mm LEDs which can be directly mounted on a printed circuit board. Four colors and two
lens types are available for a total of eight types, and they are suitable for use in a wide variety of applications.
Features
1) Four colors : red, orange, yellow and green.
2) Two lens types : Colored diffused and Colored clear.
3) High reliability even in case of direct mount.
4) Blow-holeless solder type.
External dimensions (Units : mm)
(2.5)
24.0Min.
CATHODE
5.4
3.8
3.1
0.4
Tolerances are
0.2 unless otherwise noted:
Selection guide
Emitting color
Lens
Colored diffused
Colored clear
Red
Orange
Yellow
Green
SLR-343VR
SLR-343VC
SLR-343DU
SLR-343YY
SLR-343DC
SLR-343YC
SLR-343MG
SLR-343MC
Absolute maximum ratings (Ta = 25
C)
Pulse width 1ms Duty 1 / 5
Parameter
Symbol
P
D
I
F
I
FP
V
R
Topr
Tstg
-
Red
SLR-343VR
SLR-343VC
SLR-343DU
SLR-343DC
SLR-343YY
SLR-343YC
SLR-343MG
SLR-343MC
Orange
Yellow
Green
-
25
~
+
85
-
30
~
+
100
260
C 5 seconds maximum
Unit
mW
mA
mA
V
C
C
-
60
20
60
3
60
20
60
3
60
20
60
3
75
25
60
3
Power dissipation
Forward current
Peak forward current
Reverse voltage
Operating temperature
Storage temperature
Soldering temperature
SLR-343 Series
LED lamps
Electrical and optical characteristics (Ta = 25
C)
Symbol
Unit
Parameter
Red
Viewing angle
2
1/2
Spectral line half
width
-
nm
Peak
wavelength
P
-
nm
Reverse current
I
R
-
A
Forward voltage
V
F
Conditions
I
F
=
10mA
I
F
=
10mA
V
R
=
3V
I
F
=
10mA
-
Min.
40
650
-
2.0
Typ.
-
-
10
3.0
Max.
Orange
-
-
-
-
Min.
40
610
-
2.0
Typ.
-
-
10
3.0
Max.
Yellow
-
-
-
-
Min.
40
585
-
2.1
Typ.
-
-
10
3.0
Max.
Green
-
-
-
-
Min.
40
563
-
2.1
Typ.
-
-
deg
Diffused
40
-
-
40
-
-
40
-
-
40
-
-
Transparent
40
-
-
40
-
-
40
-
-
40
-
-
10
3.0
Max.
V
Luminous intensity vs. wavelength Luminous intensity
1.0
0.8
0.6
0.4
0.2
0
500
550
600
650
700
750
Axial Luminous Intensity
Wavelength :
P
(nm)
Fig. 1
Green
Yellow
Orange
Red
P
Unit
Color
Yellow
Green
585
563
Orange
610
Red
650
Type
SLR-343VR
Min.
5.6
Typ.
16.0
Max.
-
mcd
SLR-343VC
9.0
25.0
-
mcd
SLR-343DU
5.6
16.0
-
mcd
SLR-343DC
9.0
25.0
-
mcd
SLR-343YY
3.6
10
-
mcd
SLR-343YC
5.6
16.0
-
mcd
SLR-343MG 5.6
16.0
-
mcd
SLR-343MC
9.0
25.0
-
mcd
Note: Measured at I
F
=
10mA
Directional pattern
ANGLE (
)
RELATIVE LUMINOUS INTENSITY
(%)
Fig. 2
0
50
100
50
100
0
10
10
20
20
30
40
50
60
70
80
90
30
40
50
60
70
80
90
Transparent
Diffused
SLR-343 Series
LED lamps
Electrical characteristic curves 1 (red)
20
10
5.0
2.0
1.0
0.5
0.2
0.1
1.5
1.0
2.0
2.5
3.0
50
FORWARD VOLTAGE : V
F
(V)
Fig.3 Forward current vs.
forward voltage
FORWARD CURRENT : I
F
(mA)
Ta
=
25
C
1.4
1.2
1.0
0.8
0.6
0.4
-
20
0
20
40
60
80
Fig.4 Luminous intensity vs.
case temperature
RELATIVE LUMINOUS INTENSITY
CASE TEMPERATURE : T
C
(
C)
2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.1 0.2
0.5
1
2
5
10 20
50 100
5
FORWARD CURRENT : I
F
(mA)
Fig.5 Luminous intensity vs.
forward current
RELATIVE LUMINOUS INTENSITY
Ta
=
25
C
1
1
2
3
4
5
6
10
10
3
10
2
10
4
10
5
Fig.6 Maximum tolerable peak current
vs. pulse duration
PULSE DURATION : t
W
(
s)
RATIO of MAXIMUM TOLERABLE PEAK CURRENT
to MAXIMUM TOLERABLE DC CURRENT
I
F
peak
M
ax.
I
F
M
ax.
5kHz
10kHz
20kHz
500Hz
200Hz
100Hz
1kHz
2kHz
50kHz
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
DF
=
50%
15%
10%
5%
Fig.7 Luminous intensity
vs. peak forward current
20%
20
10
0
20
30
40
50
60
70
80
90
30
AMBIENT TEMPERATURE : Ta
(
C)
Fig.8 Maximum forward current
vs. ambient temperature
MAXIMUM FORWARD CURRENT : I
F
Max.
(mA)
SLR-343 Series
LED lamps
Electrical characteristic curves 2 (orange)
20
10
5.0
2.0
1.0
0.5
0.2
0.1
1.5
1.0
2.0
2.5
3.0
50
FORWARD VOLTAGE : V
F
(V)
Fig.9 Forward current vs.
forward voltage
FORWARD CURRENT : I
F
(mA)
Ta
=
25
C
1.4
1.2
1.0
0.8
0.6
0.4
-
20
0
20
40
60
80
Fig.10 Luminous intensity vs.
case temperature
RELATIVE LUMINOUS INTENSITY
CASE TEMPERATURE : T
C
(
C)
2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.1 0.2
0.5
1
2
5
10 20
50 100
5
FORWARD CURRENT : I
F
(mA)
Fig.11 Luminous intensity vs.
forward current
RELATIVE LUMINOUS INTENSITY
Ta
=
25
C
1
1
2
3
4
5
6
10
10
3
10
2
10
4
10
5
Fig.12 Maximum tolerable peak current
vs. pulse duration
PULSE DURATION : t
W
(
s)
RATIO of MAXIMUM TOLERABLE PEAK CURRENT
to MAXIMUM TOLERABLE DC CURRENT
I
F
peak
M
ax.
I
F
M
ax.
50kHz
20kHz
10kHz
5kHz
2kHz
1kHz
500Hz
200Hz
100Hz
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
DF
=
50%
15%
10%
5%
Fig.13 Luminous intensity
vs. peak forward current
20%
20
10
0
20
30
40
50
60
70
80
90
30
AMBIENT TEMPERATURE : Ta
(
C)
Fig.14 Maximum forward current
vs. ambient temperature
MAXIMUM FORWARD CURRENT : I
F
Max.
(mA)
SLR-343 Series
LED lamps
Electrical characteristic curves 3 (yellow)
20
10
5.0
2.0
1.0
0.5
0.2
0.1
1.5
1.0
2.0
2.5
3.0
50
FORWARD VOLTAGE : V
F
(V)
Fig.15 Forward current vs.
forward voltage
FORWARD CURRENT : I
F
(
mA)
Ta
=
25
C
1.4
1.2
1.0
0.8
0.6
0.4
-
20
0
20
40
60
80
Fig.16 Luminous intensity vs.
case temperature
RELATIVE LUMINOUS INTENSITY
CASE TEMPERATURE : T
C
(
C)
2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.1 0.2
0.5
1
2
5
10 20
50 100
5
FORWARD CURRENT : I
F
(mA)
Fig.17 Luminous intensity vs.
forward current
RELATIVE LUMINOUS INTENSITY
Ta
=
25
C
1
1
2
3
4
5
6
10
10
3
10
2
10
4
10
5
Fig.18 Maximum tolerable peak current
vs. pulse duration
PULSE DURATION : t
W
(
s)
RATIO of MAXIMUM TOLERABLE PEAK CURRENT
to MAXIMUM TOLERABLE DC CURRENT
I
F
peak
M
ax.
I
F
M
ax.
50kHz
20kHz
10kHz
5kHz
2kHz
1kHz
500Hz
200Hz
100Hz
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
DF
=
50%
15%
10%
5%
Fig.19 Luminous intensity vs.
peak forward current
20%
20
10
0
20
30
40
50
60
70
80
90
30
AMBIENT TEMPERATURE : Ta
(
C)
Fig.20 Maximum forward current
vs. ambient temperature
MAXIMUM FORWARD CURRENT : I
F
Max.
(mA)
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