Long Distance Reflective Switch
OPB725
Features:
•
•
•
•
Remote mounting in 18 mm hole
48” (122 cm) 26 AWG wired with mounting nuts
Non-contact infrared switch
Up to 24” or more reflective distance depending on object
Description:
OPB725
uses an Infrared LED and Photologic® sensor in a reflective switch configuration. The assembly is
offered with a standard wire length of 48” [122 cm], and uses an opaque housing to reduce the sensor’s ambient
light sensitivity. The emitter and sensor are protected by a window clear to near infrared wavelengths, providing a
device that can operate in a dusty environment. The Photologic® sensor has an NPN Open-Collector output
providing the user a device that can be used in a variety of applications.
While an object is in the reflective path of the device, light from the LED will be reflected back to the housing
irradiating the surface of the Photologic® sensor causing the output NPN transistor to turn “ON” to provide a “low”
voltage output when connected to appropriate value pull-up resistor. When the Infrared light from the LED is not
being reflected to the Photologic sensor, the output transistor turns “OFF,” minimizing the I
C(ON)
current, providing a
“High” output.
Custom electrical, cabling and connectors are available. Contact your local representative or OPTEK for more
information.
Applications:
•
•
•
•
Non-contact reflective object sensor
Assembly line automation
Machine automation
Equipment security
•
•
•
Door sensor
Machine safety
End of travel sensor
Ordering Information
Part
Number
OPB725A-18Z
LED Peak
Wavelength
850 nm
Wire Length / Size
48" / 26 AWG Wire
Pin Out
Wire Color
Red
Black
White
Function
Vcc
Ground
Inverted Open
Collector
DIMENSIONS ARE IN:
[ MILLIMETERS]
INCHES
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 12/06
Page 1 of 3
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
Long Distance Reflective Switch
OPB725
Absolute Maximum Ratings
(T
A
=25°C unless otherwise noted)
Operating Temperature Range
Storage Temperature Range
Lead Soldering Temperature (1/16” (1.6 mm) from case for 5 seconds with soldering iron)
Supply Voltage (V
CC
)
Maximum Collector Voltage
Collector DC Current (Sink)
Power Dissipation
0° C to + 50° C
-40° C to + 80° C
260° C
(1, 2)
18 V to 24 V
30 V
50 mA
250 mW
Electrical Characteristics
(T
A
= 25°C unless otherwise noted)
SYMBOL
Output Photologic
®
V
OH
V
OL
High Level Output Voltage
22
-
-
V
V
CC
= 24 V, RL = 10 K,
(No Target)
V
CC
= 24 V, RL = 10 K, D = 12”
(90% Reflective Surface
Kodak—EK E 152 7798)
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
Low Level Output Voltage
-
-
0.8
V
Combined
Typical distance with Gain at
minimal value (Counter-Clockwise)
Trip Point
Distance
Typical distance with Gain in
center position.
Typical distance with Gain at
maximum value (Clockwise)
-
13
-
-
18
-
inches
Target size 8”X8” [20cmX20cm]
-
23
-
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
(2) Methanol or isopropanol are recommended as cleaning agents. The plastic housing is soluble in chlorinated hydrocarbons and
keytones.
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A
12/06
Page 2 of 3
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
Long Distance Reflective Switch
OPB725
Typical Switching Characteristics
Target 8”X8” [20cmX20cm]
1
Min Sen Toward
Min Sen Away
Center Sen Toward
State
Center Sen Away
Max Sen Toward
Max Sen Away
0
0
5
10
15
20
25
30
35
40
45
Distance (inches)
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 12/06
Page 3 of 3
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