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
OPB708, OPB709, OPB740,
OPB745 Series
Product Photo Here
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 (RBE) 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 sensor • Assembly line automation • Machine automation • Machine safety • End of travel sensor • Door sensor • Thermal Paper Mark
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.
Part Number
OPB708 OPB709 OPB740 OPB741 OPB742 OPB743 OPB744 OPB745 OPB740WZ OPB741WZ OPB742WZ OPB743WZ OPB744WZ OPB745WZ OPB746WZ OPB747WZ OPB748WZ
LED Peak Wavelength
935 nm
Sensor
Transistor Darlington
Transistor
Reflection Distance Inch (mm)
Lead Length/ Wire Type
0.150" Minimum
890 nm
935 nm 645nm
Darlington Transistor
Min=0.08” [2.04mm] Typ=0.15" [3.81mm] Max=0.30” [7.62mm]
Darlington RBE Transistor
Transistor
24" / 26 AWG Wire
RoHS
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
[email protected] www.optekinc.com
Issue C 10/11 Page 1 of 6
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, OPB746WZ, OPB747WZ,
OPB748WZ
OPB708 OPB740 thru OPB744
OPB746WZ, OPB747WZ,
OPB709, OPB745,
Color-PIN #
Orange-1 Green-2
LED
Anode Cathode
Color-PIN #
White-4 Blue-3
Transistor
Collector Emitter
Package Style
Part Number OPB708 OPB709 OPB740
OPB740WZ OPB741
OPB741WZ OPB742
OPB742WZ OPB743
OPB743WZ OPB744
OPB744WZ OPB745
OPB745WZ OPB746WZ OPB747WZ OPB748WZ
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
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue C 10/11 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
[email protected] www.optekinc.com
Reflective Object Sensor
OPB708, OPB709 OPB740 Series, OPB740WZ Series
Absolute Maximum Ratings (TA=25°C unless otherwise noted)
Operating and Storage Temperature Range OPB708, OP709, OPB740, OPB741, OPB742, OPB743, OPB744, OPB745
-40° C to +85° C
OPB741WZ, OPB742WZ, OPB743WZ, OPB744WZ, OPB745WZ, OPB746WZ, OPB747WZ, OPB748WZ
Lead Soldering Temperature [1/16 inch (1.6mm) from the case for 5 sec. with soldering iron](1)
-40° C to +80° C 260°C
Input Diode (See OP165 (935 nm), OP265 (890 nm) or OVLAS6CB8 (645 nm) for additional information)
Forward DC Current
40 mA
Reverse DC Voltage Power Dissipation(2)
2V 100 mW
Sensor Output (See OP505 (Transistor), OP705 (RBE 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
30 V 15 V 30 V 30 V 15 V 15 V 24 V
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 a.