0.04” to 12” (1 mm to 305 mm) with 90% reflective material. (Typical
Maximum detection distance to be set at factory)
Recognizes objects as small as 0.08” (2 mm)
Ambient light rejection < 100K Lux
Open collector output
Cable length 39” (990 mm) lead length 28 AWG wire
The
OPB720A and OPB720B
Series reflective switches detects objects as far away as 12” (305 mm) using standard 90%
reflective material, and can detect objects as small as 0.08” (2 mm). The OPB720 series consist of three standard reflective
switching distances
-06Z
for typically 6” (152 mm),
-12Z
for typically 12” (305 mm) and
-30VZ
for typically 30” (762 mm).
The power supply voltage range of the
OPB720A
series is 10 to 30 volts while the power supply voltage range for the
OPB720B
is 4 to 7 volts.
The
OPA720A and OPB720B
sensors are
NOT
affected by ambient light in most conditions. Ambient light conditions are
compensated by using a synchronous driver detection scheme.
This sensor has a logical output that switches from a high level with reflective target to a low level with no reflective target.
With the addition of hysteresis, the
OPB720
series minimizes output switching oscillations. The type of material used for
the target is very dependent on the distance that can be achieved for the sensor. Taking this into consideration, the
OPB720
series can be used in either a reflective or interruptive mode. As an example, the
OPB720A-12Z
can easily be used
in a reflective mode for distances around 12” (305 mm) while when reflecting off a retro-reflective target similar to 3M 3870
or Nippon Crystallite at distances around 85” (216 mm) the device works well in the interruptive mode. See the included
charts for typical distances with different reflective material for other versions of the
OPB720
series devices.
The
OPB720
series has an open collector output transistor and power requirements are compatible with most PLCs and TTL
gates.
Ordering Information
Part Number
Description
Maximum detection of 0.04” to 6” (1.0 mm to 152 mm)
39” (991 mm) lead length with 28 AWG wire, using white 90%
reflective paper
Maximum detection of 0.04” to 12” (1.0 mm to 305 mm)
39” (991 mm) lead length with 28 AWG wire, using white 90%
reflective paper
Maximum detection of 0.04” to 30” (1.0 mm to 762 mm)
39” (991 mm) lead length with 28 AWG wire, using white 90%
reflective paper
Conveyer belt package recognition
Personnel movement recognition
Near-focus security systems
Hand wash and soap dispensing stations
Toilet and urinal sensors
Product dispensing systems
OPB720A-06Z
OPB720B-06Z
OPB720A-12Z
OPB720B-12Z
OPB720A-30VZ
OPB720B-30VZ
Vcc
Electronics
Output
OPB720A-30VZ & OPB720B-30VZ ONLY
Additional laser safety information can be found
on the Optek website. See application #221.
Classification is not marked on the device due to
space limitations. See package outline for
centerline of optical radiance. Operating devic-
es beyond maximum rating may cause devices
Ground
RoHS
Pin #
Red
White
Black
Description
V
CC
Output
Ground
DIMENSIONS ARE IN:
[ MILLIMETERS]
INCHES
Operating Temperature Range
OPB720A Series
OPB720B Series
Storage Temperature Range
Pin #
Red
Description
Vcc
Pin #
White
Description
Output
Pin #
Blac k
Description
Ground
0° C to + 50° C
0° C to + 70° C
-40° C to + 80° C
260° C
(1)
10 to 30 Volts
4 to 7 Volts
30 V
50 mA
300 mW
Lead Soldering Temperature (1/16” (1.6 mm) from case for 5 seconds with soldering iron)
Supply Voltage (V
CC
)
OPB720A Series
OPB720B Series
Maximum Collector Voltage
Collector DC Current (Sink)
Power Dissipation
V
OL
Low Level Output Voltage
OPB720A Series
OPB720B Series
High Level Output Voltage
OPB720A Series
OPB720B Series
-
-
5.0
3.5
-
-
-
-
0.8
0.8
-
-
V
V
CC
= 10 Volts, Note 4
V
CC
= 4 Volts, Note 4
V
CC
= 10 Volts, Note 5
V
CC
= 4 Volts, Note 5
V
OH
Notes:
(1)
(2)
(3)
(4)
(5)
V
RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
Distance for OPB720A-06Z=6 “ (152 mm), Distance for OPB720A-12Z=12” (305mm), Distance for OPB720A-30VZ=30” (762 mm)
OPB720A-30VZ & OPB720B-30VZ are
class 1M
laser safety device. Do Not look at the device closer than 4” (100 mm) with a magnifying device.
R
L
= 10 K, V
CE
= V
CC
Distance = See Note 2 & 3, (No Target)
R
L
= 10 K, V
CE
= V
CC,
(90% Reflective Surface, Kodak—EK E152-7798)
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