The OPB703, OPB704 and OPB705 consist of an Infrared (890 nm) Light Emitting Diode (LED) and a NPN silicon Phototransistor,
mounted side-by-side on converging optical axes in a black plastic housing and are designed for PCBoard mounting. The
OPB703WZ, OPB704WZ and OPB705WZ are designed for remote mounting utilizing interconnect wires of UL approved 26 AWG,
24” (61.0 cm) minimum length, stripped and tinned.
The OPB70AWZ consists of an Infrared (890 nm) Light Emitting Diode (LED) and a NPN silicon Photodarlington, mounted side-by-
side on converging optical axes in a black plastic housing and is designed for remote mounting utilizing interconnect wires of UL
approved 26 AWG, 24” (61.0 cm) minimum length, stripped and tinned.
The OPB70DWZ through OPB70FWZ consist of a Visible (Red 660 nm) Light Emitting Diode (LED) and a NPN silicon Phototransistor
or Rbe Phototransistor, mounted side-by-side on converging optical axes in a black plastic housing and are designed for remote
mounting utilizing interconnect wires of UL approved 26 AWG, 24” (61.0 cm) minimum length, stripped and tinned.
Various lens options are available: No lens for the (OPB703, OPB703WZ), blue window for dust protection for the (OPB704,
OPB704WZ) and aperture lens for improved resolution for the (OPB705, OPB705WZ, OPB70AWZ, OPB70DWZ). The
OPB704GWZ offers excellent protection for dirty environments.
The phototransistor responds to illumination from the emitter when a reflective object passes within the field of view centered
typically at 0.15” (3.8 mm).
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