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Infrared reflective sensor OPTEK OPB743 designed for non contact object detection in industrial automation

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Infrared reflective sensor OPTEK OPB743 designed for non contact object detection in industrial automation

Reverse Pressure (Typ) : 2V

Voltage - Forward(Vf) : 1.8V

Sensing Distance : 2.04mm

C-E Saturation Voltage : 30V

Description : 2.04mm 30V Reflective - Analog Output RoHS

Mfr. Part # : OPB743

Model Number : OPB743

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Reflective Object Sensor OPB708, OPB709, OPB740 Series, OPB740WZ Series

The OPB708, OPB709, OPB740 through OPB746, and OPB740WZ through OPB746WZ series are reflective object sensors. Each unit comprises an infrared emitting diode paired with either an NPN silicon phototransistor or a photodarlington. The OPB747WZ and OPB748WZ models feature a Red visible LED and a low light level rejection (RBE) NPN silicon phototransistor, offering enhanced contrast for detecting black marks on white surfaces. These sensors are housed in a black plastic enclosure with side-by-side components on converging optical axes, designed for focused detection within a specific area and depth of field. The OPB_WZ series includes UL-approved wiring and offers optional lens configurations such as no windows, blue polysulfone for dust protection, or opaque aperture windows with offset openings for improved target resolution. Custom options for IC(ON) current binning, wire lengths, and connectorization are available. These sensors are ideal for non-contact object detection in various automation and safety applications.

Product Attributes

Brand: TT electronics plc
Series: OPB708, OPB709, OPB740 Series, OPB740WZ Series, OPB740 through OPB746, OPB740WZ through OPB746WZ, OPB747WZ, OPB748WZ
Housing Material: Black plastic
Certifications: UL approved wire (for OPB_WZ series)
RoHS: Yes
Note on Polysulfone: CONTAINS POLYSULFONE - To avoid stress cracking, ND Industries Vibra-Tite is suggested for thread-locking. Applies to: OPB460, OPB470, OPB480, OPB490.

Technical Specifications

Part Number	LED Peak Wavelength	Sensor Type	Reflection Distance (Inch [mm])	Lead Length/Wire Type	LED Color	Lens Configuration	Collector-Emitter Voltage (V)	Emitter-Collector Voltage (V)	Power Dissipation (mW)	On-State Collector Current (mA)	Crosstalk (A)
OPB708	935 nm	Transistor	Min=0.08" [2.04 mm] Typ=0.15" [3.81 mm] Max=0.30" [7.62 mm]	0.150" Minimum	Infrared	D - No windows	30	5.0	100	0.01 - 3.00	-
OPB709	935 nm	Darlington	0.150" Minimum	Infrared	D - No windows	15	5.0	100	1.00 - 26.0	-
OPB740	890 nm	Transistor	0.150" Minimum	A - No windows	Infrared	30	5.0	100	0.05 - 2.50	-
OPB740WZ	890 nm	Transistor	24" / 26 AWG Wire	A - No windows	Infrared	30	5.0	100	0.05 - 2.50	-
OPB741	890 nm	Transistor	B - Blue windows	Infrared	30	5.0	100	0.05 - 2.50	-
OPB741WZ	890 nm	Transistor	24" / 26 AWG Wire	B - Blue windows	Infrared	30	5.0	100	0.05 - 2.50	-
OPB742	890 nm	Transistor	C - Offset windows	Infrared	30	5.0	100	0.01 - 0.70	-
OPB742WZ	890 nm	Transistor	24" / 26 AWG Wire	C - Offset windows	Infrared	30	5.0	100	0.01 - 0.70	-
OPB743	890 nm	Transistor	A - No windows	Infrared	30	5.0	100	0.20 - 2.00	-
OPB743WZ	890 nm	Transistor	24" / 26 AWG Wire	A - No windows	Infrared	30	5.0	100	0.20 - 2.00	-
OPB744	890 nm	Transistor	B - Blue windows	Infrared	30	5.0	100	0.20 - 2.00	-
OPB744WZ	890 nm	Transistor	24" / 26 AWG Wire	B - Blue windows	Infrared	30	5.0	100	0.20 - 2.00	-
OPB745	935 nm	Darlington	C - Offset windows	Infrared	15	5.0	100	5.00 - 26.0	-
OPB745WZ	935 nm	Darlington	24" / 26 AWG Wire	C - Offset windows	Infrared	15	5.0	100	5.00 - 26.0	-
OPB746WZ	935 nm	RBE Transistor	24" / 26 AWG Wire	B - Blue windows	Infrared	24	-	100	0.50 - 2.50	-
OPB747WZ	645 nm	RBE Transistor	24" / 26 AWG Wire	C - Offset windows	Red	24	0.4	100	0.01 - 0.70	1.0
OPB748WZ	645 nm	Transistor	24" / 26 AWG Wire	C - Offset windows	Red	15	5.0	100	0.01 - 0.70	1.0

2411220705_OPTEK-OPB743_C1526955.pdf

Infrared reflective sensor OPTEK OPB743 designed for non contact object detection in industrial automation Images

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