What it is and where it sits
The Omron E2EX2B1TL12M1OMS is a flush-mount inductive proximity sensor from the E2E-Next series, packaged in an M12 cylindrical body 70 mm long with an integrated M12 4-pin connector — the standard pick-and-place form factor for short-range part-presence detection on automated cells. It runs on a 10 V to 30 V DC supply, draws 16 mA, and switches a PNP normally-open output rated to 200 mA load current — so it slots directly into the positive-switching input cards and PLC high-speed counters most panels already carry. Sensing distance tops out at 2 mm, and the 1 kHz switching frequency covers general part-presence and end-of-stroke duty; high-speed counting applications belong on a faster member of the family.
Environmental envelope
Operating range spans -40 °C to 85 °C and the housing is brass nickel-plated, which keeps the body tolerant of coolant splash and typical wash-down chemistries. Ingress protection is rated IP67 and IP69K on the connector side — that IP69K rating is the figure to specify against when the sensor sits inside a food-and-beverage or pharmaceutical cell that sees high-pressure hot-water cleaning. Flush-mounting means the active face sits level with the surrounding bracket, so it does not need the mechanical clearance an unshielded barrel would demand in a crowded fixture.
Sourcing reality and panel fit
Lifecycle status is current, so the part is still being manufactured and is the correct code to keep on the BOM without substituting an equivalent. Lead the quote with the four digits that drive cross-shopping: M12 body, M12 4-pin termination, 2 mm Sn, PNP NO — RFQs framed against those four numbers return the correct alternates rather than near-miss families.
Same-family siblings worth knowing
The closest wired alternative in the same series is the cable-pigtail sibling E2EX2B1T122MOMS — same M12 body, same 2 mm Sn, same PNP NO output, but terminating in a 2 m cable rather than an M12 connector, and stepping the switching frequency up to 1.5 kHz. It drops into the same bracket but changes the panel-side wiring from a connectorized drop to a gland entry. For a longer reach on the same M12 connector footprint, the E2EX4B1TL12M1OMS holds the same 70 mm length and PNP NO output while quadrupling the sensing distance to 4 mm; that is the swap when 2 mm is mechanically too tight and the bracket geometry already constrains the body length. When the bracket needs to shrink, the E2EX2B1TL8M1OMS moves to an M8 form factor at 53 mm body length with stainless-steel housing and a 1.5 kHz switching speed — same 2 mm PNP NO electrical signature, but a smaller mechanical envelope and a tougher body for harsher wash-down.