What it is, and why it is on the BOM
The Omron E2EX4B1T125MOMS is an inductive proximity sensor from the E2E-Next series in an M12 flush-mount barrel with a 4 mm rated sensing distance, switching through a PNP normally-open output.
Electrical envelope the integrator must match
Load current is rated 200 mA, current consumption 16 mA, and switching frequency 1 kHz, so the sink on a standard PNP-input card stays well inside the per-channel budget and the sensor will keep up with line speeds driven by a small pneumatic cylinder without missing a stroke. Because the output is PNP normally-open, wiring is source-style into a sinking PLC input on the 5 m cable.
Mechanical and environmental fit
The brass nickel-plated body with flush-mount face gives a clean profile against the mounting surface, and the 47.1 mm overall length keeps the barrel short enough to clear adjacent cable duct and pneumatic fittings in a typical DIN-rail cell. IP69K on top of IP67 means the sensor is rated for high-pressure, high-temperature jet cleaning — close-coupled to chemical washdown zones rather than the gentler splash-only areas.
Second-source posture against the E2E-Next connector sibling
The closest same-function sibling in the line is the E2EX4B1T12M1OMS, which carries identical 4 mm range, 200 mA load, 16 mA consumption, 1 kHz switching, PNP NO logic and the same temperature and IP envelope — but ships with an M12 4-pin connector instead of a 5 m cable. That is a drop-in for the sensing function, not for the wiring — replacing one with the other in an existing harness means re-terminating from a cable gland to an M12 cordset, which only matters if the panel was built around the sealed 5 m lead.
Lifecycle and sourcing posture
For a category strategist, the relevant move is consolidation: this part shares its full electrical and environmental footprint with the rest of the E2E-Next M12 flush PNP-NO group, which simplifies qualifying a second supplier and keeps the spend under management without fragmenting part numbers.