SML79455C [ALLEGRO]
Visible LED;
ALLEGRO MICROSYSTEMS 
SEL70055Series
Egg-shaped Bicolor LED (Direct Mount)
SML70055 Series
(Unit: mm)
External Dimensions
Directivity (Typical)
7.3±0.5
(0.3)
0°
0°
B
A
1.5min
1.0min
20.0min
30°
30°
30°
30°
60°
60°
60°
60°
(2.54)
(2.54)
90°
100%
90°
100%
90°
100%
90°
100%
Reisin burr 0.3max
Reisin heap 0.8max
50
0
50
50
0
50
4.65±0.2
Transparent
0°
0°
B
A
30°
30°
30°
30°
60°
60°
60°
60°
Tolerance: ±0.3
Internal wiring
diagram 1
Internal wiring
diagram 2
90°
100%
90°
100%
A
B
A
B
90°
100%
90°
100%
50
0
50
50
0
50
Diffused white
Absolute maximum ratings (Ta=25°C)
Symbol
IF
Unit
mA
mA/°C
mA
V
Rating
30
Condition
∆IF
−0.45
Above 25°C
IFP
100
f=1kHz, tw≤100µs
VR
4
Top
Tstg
°C
−30 to +85
−30 to +100
°C
Electrical Optical characteristics (Ta=25°C)
●Common cathode (Internal wiring diagram 1)
Forward voltage
Reverse current
Intensity
Peak wavelength Spectrum half width
Chip
VF
Condition
IF
IR
Condition
IV
Condition λP Condition ∆λ Condition
Part
Emitting color
Lens color
material
(V)
(µA)
VR (mcd)
IF
(nm)
IF
Number
(nm)
IF
typ
max (mA) max
(V)
typ (mA) typ (mA)
typ (mA)
Ultra-high-
A intensity red
2.0
2.0
1.9
2.0
2.0
2.0
1.9
2.0
1.9
2.0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
4
4
4
4
4
4
4
4
4
4
160
170
45
20
20
20
20
20
20
20
20
20
20
635
572
630
570
615
572
587
630
587
560
10
10
10
10
10
10
10
10
10
10
15
15
35
30
15
15
33
35
33
20
10 AIGaInP
10 AIGaInP
SMLU72755C Clear
SML72755C Clear
Ultra-high-
intensity yellow
B
A
Red
10
10
GaAsP
GaP
B
75
Yellow
Ultra-high-
A
280
170
40
10 AIGaInP
10 AIGaInP
intensity amber
Clear
Clear
Clear
SMLU78755C
SML79255C
SML79455C
Ultra-high-
intensity yellow
B
A
Orange
10
10
10
10
GaAsP
GaAsP
GaAsP
GaP
B
Red
45
A
45
Orange
B
Green
75
●Common anode (Internal wiring diagram 2)
Forward voltage
Reverse current
Intensity
Peak wavelength Spectrum half width
Chip
Part
VF
Condition
IR
Condition
IV Condition λP Condition ∆λ Condition
Emitting color
Lens color
material
Number
(V)
IF
(µA)
VR (mcd)
IF
(nm)
IF
(nm)
IF
typ
1.7
2.4
max (mA) max
(V)
4
typ (mA) typ (mA)
typ (mA)
High-
A intensity red
2.2
3.0
10
10
10
10
50
50
20
20
660
570
10
10
30
30
10 GaAlAs
10 GaP
SML76755WN Diffused white
B
4
Yellow
49
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