OPTEK Technology
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: (800) 341-4747 FAX: (972) 323– 2396 sensors@optekinc.com www.optekinc.com
A subsidiary of
TT elect r oni c s plc
Issue B.1 07.05
Long Distance Reflective Switch
OPB720
• Detection distance from 0.04” (1 mm) to 24” (610 mm)
[maximum distance to be set at the factory]
• Ambient Light Rejection < 100K Lux
• Object size as small as 0.08” (2mm) can be recognized
• Cable Length and Termination options
• Open collector output
Preliminary
The OPB720 is a reflective switch designed to detect objects as far away as 24” (610 mm). Detectable object
sizes can be as small as 0.08” (2mm) at a distance of 8” (20 mm). The OPB720 has a logical output that
switches from a high level with no reflection target to a low level with a reflection target. With the addition of
hysteresis, the OPB720 minimizes switching oscillations on the output. The open collector output transistor
and power requirements is compatible with most PLC’s
Applications include:
• Conveyer belt package recognition
• Personnel movement recognition
• Near focus security systems
• Hand wash an d soap di spensin g stations
• Toilet and urinal sensors
• Product dispensing systems
Product Photo Here
Dimensions are in inches [ millimeters]
Red Vcc
White Output
Black Ground
Color Description
Electronics
Vcc
Output
Ground
Optek Technology
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 sensors@optekinc.com www.optekinc.com
Issue B 01.05
Page 2 of 2
Absolute Maximum Ratings (TA = 25°C unless otherwise noted)
Storage T emper at ure -40° C to +80° C
Lead Soldering Temperature (1/16” (1.6mm) from case for 5 seconds with so ldering iron) 260° C (1)
Operating Temperature -20° C to +60° C
Absolute Maximum Ratings (TA = 25°C unless otherwise noted)
Supply Voltage (Vcc) 10 to 30 Volts
Power Dissipation 300 mW
Collector DC Current (Sink) 50 mA
Maximum Collector Voltage 30 Volts
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
Electrical Characteristics (TA = 25°C unless otherwise noted)
SYMBOL PARAMETER MIN TYP MAX UNITS CONDITIONS
VOL Low Level Output voltage - - 0.8 Volts Vcc=10V, RL=10K, D=8”
Surface White Diffuse Paper
EK E152-7798
VOH High Level Output 5.0 - - Volts Vcc=10V, RL=10K, No Ta rget
Long Distance Reflective Switch
OPB720
Preliminary
