SLR-343 Series
LED lamps
Reflecting small LEDs, directly mountable
(φ3.1mm) (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.
z
zz
zFeatures
1) Four colors : red, orange, yellow and green.
2) T wo lens types : Colored diffused and Colored clear .
3) High reliability even in case of direct mount.
4) Blow-h oleless solder ty pe.
z
zz
zExternal dimensions (Units : mm)
(2.5)
24.0Min.
CATHODE
5.4
φ3.8
φ3.1
0.4
Tolerances are ±0.2 unless otherwise noted:
z
zz
zSel ection gu ide
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
z
zz
zAbsolute maximum ratings (Ta = 25°C)
∗
Pulse width 1ms Duty 1 / 5
Parameter Symbol
PD
IF
IFP
VR
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
z
zz
zElectrical and optical characteristics (Ta = 2 5°C)
Symbol UnitParameter Red
Viewing angle 2θ
1/2
Spectral line half
width ∆λ − nm
Peak
wavelength λ
P
−nm
Reverse current I
R
− µA
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
z
zz
zLuminous intensity vs. wavelength z
zz
zLuminous intensity
1.0
0.8
0.6
0.4
0.2
0
500 550 600 650 700 750
Axial Luminous Intensity
Wavelength : λP (nm)
Fig. 1
Green Yellow Orange Red
λ
PUnitColor
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
z
zz
zDirectional pattern
ANGLE (°)
RELATIVE LUMINOUS INTENSITY
(%)
Fig. 2
0 50 10050100
010
10 20
20 30
40
50
60
70
80
90
30
40
50
60
70
80
90
Transparent
Diffused
SLR-343 Series
LED lamps
z
zz
zElectrical characteristic curves 1 (red)
20
10
5.0
2.0
1.0
0.5
0.2
0.1 1.51.0 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 : TC
(°C)
2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.1 0.2 0.5 1 2 51020 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
(µs)
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
00 102030405060
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
z
zz
zElectrical characteristic curves 2 (orange)
20
10
5.0
2.0
1.0
0.5
0.2
0.1 1.51.0 2.0 2.5 3.0
50
FORWARD VOLTAGE : VF
(V)
Fig.9 Forward current vs.
forward voltage
FORWARD CURRENT : IF
(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 51020 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 : tW
(µs)
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
00 102030405060
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 : IF
Max. (mA)
SLR-343 Series
LED lamps
z
zz
zElectrical characteristic curves 3 (yellow)
20
10
5.0
2.0
1.0
0.5
0.2
0.1 1.51.0 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 51020 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
(µs)
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
00 102030405060
RELATIVE LUMINOUS INTENSITY
PEAK FORWARD CURRENT : IF
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)
SLR-343 Series
LED lamps
z
zz
zElectrical characteristic curves 4 (green)
20
10
5.0
2.0
1.0
0.5
0.2
0.1 1.51.0 2.0 2.5 3.0
50
FORWARD VOLTAGE : V
F
(V)
Fig.21 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.22 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 5102050
100
5
FORWARD CURRENT : I
F
(mA)
Fig.23 Luminous intensity vs.
forward current
RELATIVE LUMINOUS INTENSITY
Ta=25
°C
1
2
2.4
3
4
5
6
RATIO of MAXIMUM TOLERABLE PEAK CURRENT
to MAXIMUM TOLERABLE DC CURRENT
I
F
peak
M
ax.
I
F
M
ax.
PULSE DURATION : tW
(µs)
105205010
2
10
3
10
4
50kHz
20kHz
10kHz
5kHz
2kHz
1kHz
500Hz
200Hz
100Hz
Fig.24 Maximum tolerable peak current
vs. pulse duration
3.0
2.5
2.0
1.5
1.0
0.5
00 102030405060
Fig.25 Luminous intensity vs.
peak forward current
RELATIVE LUMINOUS INTENSITY
PEAK FORWARD CURRENT : I
F
peak
(mA)
f=1kHz
DC DF=50%
15%
10%
5%
20%
20
10
0
20 30 40 50 60 70 80 90
30
AMBIENT TEMPERATURE : Ta
(°C)
Fig.26 Maximum forward current
vs. ambient temperature
MAXIMUM FORWARD CURRENT : I
F
Max.
(mA)
