What the EE-SX1081 is and where it sits on the line
The Omron EE-SX1081 is a transmissive photomicrosensor from the EE-SX series — a fork-style light barrier with a fixed 5 mm slot between emitter and detector in a single housing, so alignment is mechanical rather than optical on the fixture side. It outputs NPN with a 50 mA load rating and a 4 µs response time, which is the figure that decides whether it can keep up with high-speed indexing — through-beam housings of this class are typically used for part-present detection, edge counting, and encoder-style timing on small-part feeders and tape-and-reel conveyors.
Fork housing, PCB-pin termination
The body measures 5 mm wide by 10 mm high by 13.7 mm long with PCB-pin termination, so it sits on a through-hole board footprint rather than a panel-cutout — the fork straddles the target as the part passes through the slot, and the slot width itself is the optical gap. Operating temperature runs from -25 °C to 85 °C, covering typical unconditioned enclosure environments on packaging machinery and small automation cells without additional thermal planning.