OPB900W55Z Optek, Screw Mount Slotted Optical Switch, Transistor Output

The OPB900 to OPB913 series, from Optek Technology, are a family of Photologic® slotted optical switches. These integrated circuit switches offer a standard housing with added flexibility for design engineers. This includes choice of type and polarity of the TTL output and shell material.
The L series of slotted optical switches are PCB mounted whilst the W series come with 26 AWG wires. Suitable applications for the OPB900 to OPB913 series include; mechanical switch replacements, speed indication, mechanical limit indication, edge sensing and object sensing.

Slotted Optical Switches, Optek Technology