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.5 06/07
Page 1 of 4
Reflective Object Sensor
OPB710, OPB710F, OPB730, OPB730F
F-Package
Features:
Choice of phototransistor or photodarlington output
Unfocused for sensing diffuse surface
Mounted on standard TO-72 header
Available in clear encapsulating epoxy (OPB710, OPB730)
Filtered to reduce the effect of visible or fluorescent light
(OPB710F, OPB730F)
Description:
OPB710 and OPB710F consist of a gallium arsenide infrared emitting diode and an NPN silicon
phototransistor. OPB730 and OPB730F consist of a gallium arsenide infrared emitting diode and an
NPN silicon photodarlington.
On each sensor, the emitting diode and detector are mounted side-by-side on parallel axes in a
standard TO-72 header. A black plastic sleeve is attached and filled with encapsulating epoxy to cover
the emitter and detector.
The OPB710F and OPB730F (“F” versions) have a filtering material added to the epoxy to reduce the
effect of ambient light. The package contains an internal barrier which prevents diode emissions from
reaching the sensor directly.
Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for
more information.
Pin # LED Pin # Transistor
3 Cathode 4 Collector
2 Anode 1 Emitter
Applications:
Non-contact reflective object sensor
Assembly line automation
Machine automation
Machine safety
End of travel sensor
Door sensor
OP710
3
2
4
1
4
2 1
3
OPB730
Part
Number LED Peak
Wavelength
Sensor Reflection
Distance
OPB710
935 nm
Transistor
0.250" (6.35mm)
OPB710F
OPB730 Darlington
OPB730F
RoHS
DIMENSIONS ARE IN:
INCHES
[ MILLIMETERS]
Bottom View
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.5 06/07
Page 2 of 4
Reflective Object Sensor
OPB710, OPB710F, OPB730, OPB730F
Electrical Characteristics (TA=25°C unless otherwise noted)
Absolute Maximum Ratings
(TA=25°C unless otherwise noted)
Storage Temperature Range -20° C to +85° C
Operating Temperature Range 0° C to +70° C
Lead Soldering Temperature [1/16 inch (1.6mm) from the case for 5 sec. with soldering iron](1) 260° C
Input Diode
Forward DC Current 50 mA
Peak Forward Current (1 µs pulse width, 300 pps) 3 A
Reverse DC Voltage 3 V
Power Dissipation(2) 75 mW
Output Photosensor
Collector-Emitter Voltage
OPB710, OPB710F
OPB730, OPB730F
30 V
15 V
Emitter-Collector Voltage 5 V
Collector DC Current 25 mA
Power Dissipation(3) 150 mW
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
(2) Derate linearly 1.67 mW/°C above 25 ° C.
(3) Derate linearly 3.33 mW/°C above 25 ° C.
(4) Measured using Eastman Kodak neutral white test card having 90% diffuse reflectance located .250 inch (6.35 mm) from the
face of the OPB710/OPB730. Reference: Eastman Kodak, Catalog #E 152 7795.
(5) Crosstalk (ICX) is the collector current measured with the indicated current on the input diode and with no reflecting surface.
Ambient light is excluded with a black box.
SYMBOL PARAMETER MIN MAX UNITS TEST CONDITIONS
Input Diode (see OP165W for additional information)
VF Forward Voltage - 1.5 V IF = 50 mA
IR Reverse Current - 100 μA VR = 3 V
Output Phototransistor (See OP505W for additional information)
V(BR)CEO Collector-Emitter Breakdown Voltage 30 - V IC = 1 mA
V(BR)ECO Emitter-Collector Breakdown Voltage 5 - V IE = 100 µA
ICEO
Collector Dark Current
OPB710, OPB710F
OPB730, OPB730F
-
-
100
250
nA VCE = 5 V, IF = 0, EE 0.1 µW/cm2
Combined
ICX
Crosstalk(5)
OPB710, OPB710F
OPB730, OPB730F
-
-
100
500
nA
IF = 50 mA, VCE = 5 V (no reflecting surface)
IC(ON)
On-State Collector Current(4)
OPB710, OPB710F
OPB730, OPB730F
150
1
-
-
µA
mA
IF = 50 mA, VCE = 5 V, d = 0.250” (6.35 mm)
TYP
-
-
-
-
-
-
-
-
-
-
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.5 06/07
Page 3 of 4
Reflective Object Sensor
OPB710, OPB710F, OPB730, OPB730F
OPB710 - Output vs Forward Current vs Temp
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 5 10 15 20 25 30 35 40 45 50
Forward Current (mA)
Normalized Output
0° C
10° C
20° C
30° C
40° C
50° C
60° C
70° C
Normalized Collector Current at 20mA and 20°C
OPB710 - Normalized
Collector Current vs. Object Distance
0.0
0.1
1.0
10.0
0.00.51.01.52.0
Distance to Reflective Surface (inches)
Normalized Output Current
Kodak 90%
Kodak 18%
Corporate
Avery
Retro Reflective
Normalized at 0.25" Kodak 90%
OPB710 - Forward Voltage vs Forward Current
vs T em p
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
0 5 10 15 20 25 30 35 40 45 50
Forward Current (mA)
Typical Forward Voltage
0° C
10° C
20° C
30° C
40° C
50° C
60° C
70° C
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.5 06/07
Page 4 of 4
Reflective Object Sensor
OPB710, OPB710F, OPB730, OPB730F
OPB730 - Output vs Forward Current vs Temp
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 5 10 15 20 25 30 35 40 45 50
Forward Current (mA)
Normalized Output
0° C
10° C
20° C
30° C
40° C
50° C
60° C
70° C
Normal ized Collector Current at 20mA and 20°C
OPB730 - Forward Voltage vs Forward Current
vs Temp
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
0 5 10 15 20 25 30 35 40 45 50
Forward Curr ent ( m A)
Typical Forward Voltage
0° C
10° C
20° C
30° C
40° C
50° C
60° C
70° C
OPB730 - Normalized
Collector Current vs. Object Distance
0.0
0.1
1.0
10.0
0.0 0.5 1.0 1.5 2.0
Distance to Reflective Surface (inches)
Normalized Output Current
Kodak 90%
Kodak 18%
Corporate
Avery
Retro Reflective
Normalized at 0.25" Kodak 90%