SLI-343 Series
LED lamps
Reflecting small LEDs, directly mountable
(φ3.1mm) (no need for solder modification)
SLI-343 Ser ies
The SLI-343 series are 3.1mm LEDs which can be directly mounted on a printed circuit board. Three colors and two lens
types are available for a total of six types, and they are suitable for use in a wide variety of applications.
z
zz
zFeatures
1) Three colors : red, orange and yellow .
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 (Uni ts : mm)
Tolerances are ±0.2 unless otherwise noted:
(2.5)
24.0Min.
CATHODE
5.4
φ3.8
φ3.1
0.4
z
zz
zSel ection gu ide
Emitting color
Lens
Colored diffused
Colored clear
Red Orange Yellow
SLI-343UR
SLI-343URC
SLI-343DU SLI-343YY
SLI-343DC SLI-343YC
SLI-343 Series
LED lamps
z
zz
zAbsolute maximum ratings (Ta = 25°C)
∗ Pulse width 100µs Duty 1 / 10
Parameter Symbol
PD
IF
IFP
VR
Topr
Tstg
−
Red
SLI-343UR
SLI-343URC SLI-343DU
SLI-343DC SLI-343YY
SLI-343YC
Orange Yellow
−25~+85
−30~+100
260°C 5 seconds maximum
Unit
mW
mA
mA
V
°C
°C
−
125
50
200∗
9
125
50
200∗
9
125
50
200∗
9
Power dissipation
Forward current
Peak forward current
Reverse voltage
Operating temperature
Storage temperature
Soldering temperature
z
zz
zElectrical and optical characteristics (Ta = 25°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
IF=20mA
IF=20mA
VR=9V
IF=2mA
IF=20mA
(1.4)
(1.45)
Min.
20
630
−
1.85
1.9
Typ.
−
−
100
2.2
2.4
Max.
Orange
−
−
−
(1.4)
(1.45)
Min.
17
611
−
1.85
1.9
Typ.
−
−
100
2.2
2.4
Max.
Yellow
−
−
−
(1.4)
(1.45)
Min.
15
591
−
1.85
1.9
Typ.
−
−
100
2.2
2.4
Max.
−deg
Diffused 40 −−40 −−40 −
−
Transparent
40 −−40 −−40 −
V
z
zz
zLumi nous inte nsity vs. wave length
1.0
0.8
0.6
0.4
0.2
0
500 550 600 650 700 750
Axial Luminous Intensity
Wavelength : λ
P
(nm)
Fig.1
Yellow
Orange
Red
z
zz
zLuminous intensity
UnitColor
Yellow
Orange
Red
Type Conditions
IF=2mA
IF=20mA
IF=2mA
IF=20mA
IF=2mA
IF=20mA
IF=2mA
IF=20mA
IF=2mA
IF=20mA
IF=2mA
IF=20mA
SLI-343UR
Min.
−Typ.
35 Max.
−
mcd
SLI-343URC
90 350 −
−
SLI-343DU
−45 −
SLI-343DC
90 450 −
SLI-343YY
−35 −
SLI-343YC
90
−
90
−
90
−
90
350
50
500
30
300
35
350
−
−
−
−
−
−
SLI-343 Series
LED lamps
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
z
zz
zElectrical characteristic curves (URC, UR, DC, DU, Y C, YY )
100
10
1
0.1 1.51.0 2.0 2.5 3.0
1000
FORWARD VOLTAGE : V
F
(V)
Fig.3 Forward current vs.
forward voltage
FORWARD CURRENT : I
F
(mA)
Ta=25°C
1.6
1.4
1.2
1.0
0.8
0.6
0.4 −20 0 20406080
Fig.4 Luminous intensity vs.
case temperature
RELATIVE LUMINOUS INTENSITY
CASE TEMPERATURE : Tc
(°C)
URC, UR
YC, YY, DC, DU
IF=20mA
1
0.1
0.01
0.1 1 10 100
10
FORWARD CURRENT : I
F
(mA)
Fig.5 Luminous intensity vs.
forward current
RELATIVE LUMINOUS INTENSITY
Ta=25°C
1
4
10
10 1000100 10000 100000
Fig.6 Ratio maximum tolerable peak
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.
10kHz
50kHz500kHz
100kHz
1kHz
5kHz
30
40
10
20
020100−10−20 30 40 50 60 70 80 90
50
60
AMBIENT TEMPERATURE : Ta
(°C)
Fig.7 Derating
MAXIMUM FORWARD CURRENT : I
F
M
ax
.
(mA)
