Optek Technology, Inc.
Carrollton, Texas 75006
(972) 323-2200
sensor@optekinc.com
www.optekinc.com
Page 1 of 4
July 2003
Issue 3.1
Vertical Cavity Surface
Emitting Laser in Ceramic
SOT-23 Package
Description
The OPV240 is a high performance 850nm VCSEL pack-
aged for sensing applications. This product's combina-
tion of features including high speed, high output power
and concentric beam makes it an ideal transmitter for
integration into all types of position sensing equipment.
Applications include:
Photoelectric Sensors
Light Curtains
Position Sensors
Encoders
Maximum Forward Peak Current
30 mA
Maximum Reverse Voltage
5 Volts
Storage Temperature
-40 to +125C
Operating Temperature
-40
to
+85 C
Soldering Lead Temperature
260 C for 10 Seconds
Max. Continuous Optical Power at 70C
1.1 mW
Absolute Maximum Ratings
(T
A
= 25 C unless otherwise noted)
Features
850nm VCSEL Technology
High thermal stability
Low drive current/high output intensity
Narrow and concentric beam angle
Ceramic SOT-23 Style Flat Lens Package
This product is classified as 1M per EN/IEC60825-1/
A2:2001. The output from class 1M products must
not be viewed directly using optical magnifiers.
Additional laser safety information can be found on
the Optek website. See application bulletin #221.
850nm 0.7mW
Optek Technology, Inc.
Carrollton, Texas 75006
(972) 323-2200
sensor@optekinc.com
www.optekinc.com
Page 2 of 4
July 2003
Issue 3.1
SYMBOL
PARAMETER
MIN TYP MAX UNITS
TEST CONDITION
P
OT
Total Power Out
1.4
4.5
mW
I
F
= 12 mA
I
TH
Threshold Current
2.0
5.5
mA
Note 1
V
F
Forward Voltage
2.15
V
I
F
= 12 mA
I
R
Reverse Current
30
nA
V
R
= 5 V
R
S
Series Resistance
14
40
ohms
Note 2
Slope Efficiency
0.17
mW/mA Note 3
Wavelength
830
860
nm
Optical Bandwidth
0.85
nm
/
T
Temp Coefficient of Slope Efficiency
-0.40
%/C
Beam Divergence
12
Degree
/
T
Temp Coefficient of Wavelength
0.06
nm/C (0 - 70 C)
l
TH
/
T
Temp Coefficient of Threshold Current
1.5
mA
(0 - 70 C)
N
ri
Relative Intensity Noise
-123
dB/Hz
V
F
/
T
Temperature Coefficient for V
F
-2.5
mV/C
OPV240 Technical Data
NOTES:
(1) Threshold Current is based on the two line intersection method specified in Telcordia GR-468-Core. Line 1 from 6 mA to 8 mA. Line 2 from 0
mA to 2 mA.
(2) Series Resistance is the slope of the Voltage-Current line from 8 to 12 mA.
(3) Slope efficiency, is the slope of the best fit LI line from 8 mA above threshold to 12 mA.
Electrical/Optical Characteristics
(at 25
C unless otherwise specified)
Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible.
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