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1
Visible Light Emitting Diodes (Red)
LN145W
GaAlAs Red Light Emitting Diode
[Element moisture resistance]
It is difficult to guarantee that the LN145W will meet the moisture
resistance specifications (MIL-STD-202D) which are
commonly guaranteed for semiconductors.
1: Cathode
2: Anode
Unit : mm
0.8
±
0.1
3.5
±
0.15
4.5
±
0.15
2.54
±
0.2
0.45
±
0.2
2-0.45
±
0.15
2-1.2
±
0.3
1.6
±
0.15
2.1
±
0.15
N
(
1
±
0
3
±
0
1
1
2
Light source for optical fiber communications,
Features
Red light emission close to monochromatic light :
λ
P
= 700 nm
High-power output, high-efficiency
High coupling characteristics and suits to a plastic fiber
High-speed response : –3dB modulation of 10MHz
Side-view flat resin package
Absolute Maximum Ratings
(Ta = 25C)
Parameter
Symbol
P
D
I
F
I
FP*
V
R
T
opr
T
stg
Ratings
120
40
400
3
–25 to +85
–30 to +100
Unit
mW
mA
mA
V
C
C
Power dissipation
Forward current (DC)
Pulse forward current
Reverse voltage (DC)
Operating ambient temperature
Storage temperature
*
t
w
= 10
μ
s, Duty cycle = 10 %
Electro-Optical Characteristics
(Ta = 25C)
Parameter
Symbol
P
O
λ
P
λ
V
F
I
R
θ
t
r
, t
f
f
C*
Conditions
min
2.5
typ
4
700
35
1.8
max
Unit
mW
nm
nm
V
μ
A
deg.
ns
MHz
Radiant power
Peak emission wavelength
Spectral half band width
Forward voltage (DC)
Reverse current (DC)
Half-power angle
Response time
Cutoff frequency
I
F
= 20mA
I
F
= 20mA
I
F
= 20mA
I
F
= 20mA
V
R
= 3V
2.2
100
The angle in which radiant intencity is 50%
I
FP
= 100mA
80
30
10
*
Cutoff frequency f
C
: Frequency at which 10
×
log P
O
(at f
= f
C
) = – 3
P
O
(at f
= 1MHz)