OPB710F

OPTEK TECHNOLOGY  OPB710F  光电开关, 反射型, TO-72

The series Reflective Object Sensor that consists of a gallium arsenide infrared emitting diode and an NPN silicon phototransistor. On each sensor, the emitting diode and detector are mounted side-by-side on parallel axes. A black plastic sleeve is attached and filled with encapsulating epoxy to cover the emitter and detector. The OPB710F "F" versions have a filtering material added to the epoxy to reduce the effect of ambient light. The package contains an internal barrier which prevents diode emissions from reaching the sensor directly.

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Phototransistor output

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Unfocused for sensing diffuse surface

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Clear encapsulating epoxy

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Filtered to reduce the effect of visible or fluorescent light