Description
The OPB847TX, OPB847TXV, OPB848TX, and OPB848TXV each consist of a gallium aluminum arsenide LED and a silicon phototransistor soldered into a printed circuit board then mounted in a high temperature plastic housing on opposite sides of a 0.100 inch (2.54 mm) wide slot.
Phototransistor switching takes place whenever an opaque object passes through the slot. Both device types have a 0.025 inch (0.635 mm) by 0.06 (1.52 mm) aperture in front of the phototransistor for high resolution
positioning sensing.

FEATUREs
·Non-contact switching
·Apertured for high resolution
·Hermetically sealed components
·Components processed to Optek’s screening program patterned after MIL-PRF-19500 for TX and TXV devices