Description: OPB711 consists of an infrared emitting diode and an NPN silicon phototransistor, mounted “side-by-side” on parallel axes in a black opaque plastic housing. The OPB712 consists of an infrared emitting diode and an NPN silicon photodarlington, mounted “side-by-side” on parallel axes in a black plastic housing. OPB711’s, emitting diode and phototransistor are encapsulated in a filtering epoxy to reduce ambient light noise. Its phototransistor responds to radiation from the emitter only when a reflective object passes within its field of view. OPB712’s emitting diode and photodarlington are encapsulated in a filtering epoxy to reduce ambient light noise. Its photodarlington responds to radiation from the emitter only when a reflective object passes within its field of view. Features: ● Choice of phototransistor or photodarlington output ● Unfocused for sensing diffuse surface ● Low-cost plastic housing ● Choice of filter or unfiltered Applications: ● Non-contact reflective object sensor ● Assembly line automation ● Machine automation ● Machine safety ● End of travel sensor ● Door sensor
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