Reflective Object Sensor
OPB708, OPB709
OPB740 Series, OPB740WZ Series
Features:
•
•
•
•
•
Focused for maximum sensitivity
Phototransistor or photodarlington output
Crosstalk does not exceed specified ICEO
24” (610 mm) wire length
26 AWG wire size
Product Photo Here
OPB708,
OPB709,
OPB740,
OPB745
Series
OPB7_ _WZ
Series
Description:
Each reflective object sensor in the
OPB708, OPB709, OPB740
through
OPB746
and
OPB740WZ
through
OPB746WZ
series consists of an infrared emitting diode and a NPN silicon phototransistor or a photodarlington.
The
OPB747WZ
and
OPB748WZ
consist of a Red visible LED and a low light level rejection (R
BE
) NPN silicon
phototransistor. The Red LED allows better contrast ratio when detecting Black marks on a White surface. All
these devices are mounted side-by-side on converging optical axes in a black plastic housing focusing on a small
area and depth of field.
OPB7 _ _ WZ
series are wired (UL approved wire) devices that offer various lens options, including no windows,
blue polysulfone windows for dust protection or opaque aperture windows with offset openings for improved target
resolution.
On each sensor included in this data sheet, the photosensor responds to radiation only when a reflective object
passes within its field of view.
Custom IC(ON) current binning, special wire lengths and connectorization is available through your OPTEK rep.
Applications:
•
Non-contact reflective object
•
Assembly line automation
•
Machine automation
•
Machine safety
•
End of travel sensor
•
Door sensor
•
Thermal Paper Mark
sensor
Part
Number
OPB708
OPB709
OPB740
OPB741
OPB742
OPB743
OPB744
OPB745
OPB740WZ
OPB741WZ
LED Peak
Wavelength
935 nm
Sensor
Transistor
Darlington
Reflection
Distance
Inch (mm)
Lead Length/
Wire Type
Transistor
0.150"
Minimum
890 nm
Darlington
Min=0.08” [2.04mm]
Typ=0.15" [3.81mm]
Max=0.30” [7.62mm]
CONTAINS POLYSULFONE
To avoid stress cracking, we suggest using
ND Industries’
Vibra-Tite
for thread-locking.
Vibra-Tite
evaporates fast without causing structural
failure in OPTEK’s molded plastics.
Applies to: OPB460, OPB470, OPB480, OPB490.
OPB742WZ
OPB743WZ
OPB744WZ
OPB745WZ
OPB746WZ
OPB747WZ
OPB748WZ
935 nm
645nm
Transistor
24" / 26
AWG Wire
Darlington
R
BE
Transistor
Transistor
RoHS
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A .3 05/09
Page 1 of 6
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Reflective Object Sensor
OPB708, OPB709
OPB740 Series, OPB740WZ Series
OPB708, OPB709, OPB740, OPB741,
OPB742, OPB743, OPB744, OPB745
[ MILLIMETERS]
DIMENSIONS ARE IN:
INCHES
OPB740WZ, OPB741WZ, OPB742WZ, OPB743WZ,
OPB744WZ, OPB745WZ, OPB740W24Z, OPB741W24Z,
OPB742W24Z, OPB743W24Z, OPB744W24Z,
OPB745WZ,
Package Style
Part Number
OPB708
OPB709
OPB740
OPB740WZ
OPB741
OPB741WZ
OPB742
OPB742WZ
OPB743
OPB743WZ
Lens Configuration
D - No windows
D - No windows
A - No windows
A - No windows
B - Blue windows
B - Blue windows
C - Offset windows
C - Offset windows
A - No windows
A - No windows
B - Blue windows
B - Blue windows
C - Offset windows
C - Offset windows
B - Blue windows
C - Offset windows
C - Offset windows
OPB708
OPB740
thru
OPB744
OPB740WZ
thru
OPB744WZ
1
4
OPB746WZ,
OPB747WZ,
OPB748WZ
1
4
1
OPB709,
OPB745,
OPB745WZ
4
OPB744
OPB744WZ
OPB745
OPB745WZ
OPB746WZ
OPB747WZ
2
3
2
3
2
3
OPB748WZ
Color-PIN #
Orange-1
Green-2
LED
Anode
Cathode
Color-PIN #
White-4
Blue-3
Transistor
Collector
Emitter
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.3 05/09
Page 2 of 6
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Reflective Object Sensor
OPB708, OPB709
OPB740 Series, OPB740WZ Series
Absolute Maximum Ratings
(T
A
=25°C unless otherwise noted)
Operating and Storage Temperature Range
OPB708, OP709, OPB740, OPB741, OPB742, OPB743, OPB744, OPB745
OPB741WZ, OPB742WZ, OPB743WZ, OPB744WZ, OPB745WZOPB746WZ, OPB747WZ,
OPB748WZ
Lead Soldering Temperature [1/16 inch (1.6mm) from the case for 5 sec. with soldering iron]
(1)
Input Diode
(see OP165 (935 nm), OP265 (890 nm) or OVLAS6CB8 (645 nm) for additional information)
Forward DC Current
Reverse DC Voltage
Power Dissipation
(2)
Sensor Output
(See OP505 (Transistor), OP705 (R
BE
Transistor) or OP535 (Darlington) for additional Information
Collector-Emitter Voltage
OPB708
OPB709
OPB740, OPB741, OPB742, OPB743, OPB744
OPB740WZ, OPB741WZ, OPB742WZ, OPB743WZ, OPB744WZ OPB748WZ
OPB745
OPB745WZ
OPB746WZ, OPB747WZ
Emitter-Collector Voltage
OPB708 through OPB745, OPB748
OPB746 through OPB747
Power Dissipation
(2)
Notes:
1. RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
2. Derate linearly 1.33 mW° C above 25° C.
-40° C to +85° C
-40° C to +80° C
260°C
40 mA
2V
100 mW
30 V
15 V
30 V
30 V
15 V
15 V
24 V
5.0 V
0.4 V
100 mW
Electrical Characteristics
(T
A
= 25°C unless otherwise noted)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
TEST CONDITIONS
645 nm LED
(See OVLAS6CB8 for generic information — for reference only)
V
F
I
R
Forward Voltage
Reverse Current
-
-
-
-
2.6
100
V
µA
I
F
= 20 mA
V
R
= 2 V
890 nm LED
(See OP265 for additional information — for reference only)
V
F
I
R
Forward Voltage
Reverse Current
-
-
-
-
1.8
100
V
µA
I
F
= 40 mA
V
R
= 2 V
935 nm LED
(See OP165 for additional information — for reference only)
V
F
I
R
Forward Voltage
Reverse Current
-
-
-
-
1.7
100
V
µA
I
F
= 40 mA
V
R
= 2 V
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A .3 05/09
Page 3 of 6
Reflective Object Sensor
OPB708, OPB709
OPB740 Series, OPB740WZ Series
Electrical Characteristics
(T
A
= 25°C unless otherwise noted)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
TEST CONDITIONS
Output R
BE
Phototransistor
(See OP705 for general information — for reference only)
V
(BR)CEO
I
CEO
Collector-Emitter Breakdown Voltage
Collector Dark Current
24
-
-
-
-
100
V
nA
I
C
= 100 µA
V
CE
= 10 V, I
F
= 0, E
E
=0
Output Phototransistor
(See OP505 for general information — for reference only)
V
(BR)CEO
V
(BR)ECO
I
CEO
Collector-Emitter Breakdown Voltage
Emitter-Collector Breakdown Voltage
Collector Dark Current
30
5
-
-
-
-
-
-
100
V
V
nA
I
C
= 100 µA
I
E
= 100 µA
V
CE
= 10 V, I
F
= 0, E
E
=0
Output Photodarlington
(See OP535 for general information — for reference only)
V
(BR)CEO
V
(BR)ECO
I
CEO
Coupled
V
CE(SAT)
Saturation Voltage
OPB708
OPB709
On-State Collector Current
OPB708
OPB709
OPB740, OPB740WZ
OPB741, OPB741W Z
OPB742, OPB742WZ
OPB743, OPB743WZ
OPB744, OPB744WZ
OPB745, OPB745WZ
OPB746WZ
OPB747WZ
OPB748WZ
Crosstalk
OPB708, OPB709,
OPB740, OPB740WZ
OPB741, OPB741WZ
OPB742, OPB742WZ
OPB743, OPB743WZ
OPB744, OPB744WZ
OPB745, OPB745WZ
OPB746WZ
OPB747WZ
OPB748WZ
-
-
0.01
1.00
0.05
0.05
0.01
0.20
0.20
5.00
0.01
0.01
0.01
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.40
1.10
3.00
-
2.50
2.50
0.70
2.00
2.00
26.0
0.70
0.70
0.70
-
10.0
10.0
0.1
20.0
20.0
25.0
0.1
0.1
0.1
Collector-Emitter Breakdown Voltage
Emitter-Collector Breakdown Voltage
Collector-Emitter Dark Current
OPB709, OPB745, OPB745WZ
15
5
-
-
-
-
-
-
250
V
V
nA
I
C
= 100 µA
I
E
= 100 µA
V
CE
= 10 V, I
F
= 0, E
E
=0
V
I
F
= 40 mA, I
c
= 3 µA , d = 0.15”
(1)(2)
I
C(ON)(1)(2)
mA
V
CE
= 5 V, I
F
= 40mA ,
d = 0.15” (3.810 mm)
I
CX(3)
µA
V
CC
= 5 V, I
F
= 40mA
Notes:
1.
The distance from the assembly face to the reflective surface is “d”.
2.
Reflective surface is Eastman Kodak (Catalog #E152 7795) neutral white test card with 90% diffuse reflectance as a reflecting surface.
3.
Crosstalk is the photocurrent measured with current to the input diode, no reflective surface and no ambient light (E
E
= 0).
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.3 05/09
Page 4 of 6
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Reflective Object Sensor
OPB708, OPB709
OPB740 Series, OPB740WZ Series
Transistor
Output vs Distance
OPB708 -
Output vs Distance
1.40
Normalized at 0.150" Kodak 90%
LED Forward Voltage vs Forward
Current vs Temperature
1.50
1.20
Kodak 90%
Kodak 19%
Copier Paper
Avery Label
Retro Material
1.40
Normalized Output (volts)
Typical Forward Voltage
1.00
1.30
0.80
1.20
0.60
1.10
-40° C
-20° C
0° C
20° C
40° C
60° C
80° C
0.40
0.20
1.00
0.00
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
0.90
0
5
10
15
20
25
30
35
40
Distance (inches)
Forw ard Current (m A)
OPB708 - Output
Temperature
vs
vs Forward Current vs Temp
2.50
Normalized Collector Current at 20mA and 20°C
Transistor Output vs Forward Current
2.00
Normalized Output
1.50
-40° C
-20° C
0° C
20° C
40° C
60° C
80° C
1.00
0.50
0.00
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
Forward Current (mA)
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A .3 05/09
Page 5 of 6
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