5mW Visible Laser Diode
Description
The SLD1121VS is a red laser diode designed for bar code readers and measuring instruments. This
features a small package and lower power consumption.
Features
Visible light (670nm typ.)
Small package (
5.6mm)
Low operating current (Iop = 50mA typ.)
Fundamental transverse mode
Applications
Bar code readers
Measuring instruments
Structure
AlGaInP quantum well structure laser diode
PIN photo diode for optical power output monitor
Recommended Optical Power Output
3mW
Absolute Maximum Ratings (Tc = 25C)
Optical power output
P
O
5
mW
Reverse voltage
V
R
LD
2
V
PD
15
V
Operating temperature Topr
10 to +50
C
Storage temperature
Tstg
40 to +85
C
Cinnection Diagram
1
E93821A81-PS
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
SLD1121VS
1
2
3
COMMON
LD
PD
2
Bottom View
1
3
1. LD cathode
2. PD anode
3. COMMON
Pin Configuration
3
SLD1121VS
Example of Representative Characteristics
40
60
20
0
20
60
40
Far field pattern (FFP)
Angle [degree]
R
e
l
a
t
i
v
e
r
a
d
i
a
n
t
i
n
t
e
n
s
i
t
y
//
P
O
= 3mW, T
C
= 25
C
0
0
3
6
2
5
1
4
40
20
60
80
Optical power output vs. Forward current characteristics
Optical power output vs. Monitor current characteristics
I
F
Forward current [mA]
0
0.5
0.25
Imon Monitor current [mA]
P
O
O
p
t
i
c
a
l
p
o
w
e
r
o
u
t
p
u
t
[
m
W
]
T
C
= 0
C
T
C
= 0
C
I
F
Imon
25
C
25
C
50
C
50
C
20
0
0.1
0.2
0.4
0.3
20
60
0
40
Monitor current vs. Temperature characteristics
T
C
Case temperature [
C]
I
m
o
n
M
o
n
i
t
o
r
c
u
r
r
e
n
t
[
m
A
]
P
O
= 3mW
20
10
200
100
10
10
30
50
20
0
40
60
Threshold current vs. Temperature characteristics
T
C
Case temperature [
C]
I
t
h
T
h
r
e
s
h
o
l
d
c
u
r
r
e
n
t
[
m
A
]
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