{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E3FA-BP112M","brand":"Omron","brandSlug":"omron","productSlug":"E3FA-BP112M","canonicalUrl":"https://aoctrl.com/omron/E3FA-BP112M","factsUrl":"https://aoctrl.com/api/mcp/products/E3FA-BP112M","rawCanonicalId":null},"summary":{"shortDescription":"Omron E3FA Series E3FA-BP112M M18 Threaded Retroreflective Photoelectric Sensor, PNP, 10–30 VDC, 500 mm Sensing Distance, 2 m Cable.","salesMarkdown":"## What this sensor is for The Omron E3FA-BP112M is a current-production M18 threaded retroreflective photoelectric sensor (E3FA series) with a 500 mm maximum sensing distance. It uses a visible red LED and a PNP output rated for 100 mA. The key feature is the P-Opaquing function, which can detect transparent objects like glass plates or clear film — applications where standard retroreflective sensors false-trigger. Response time is 0.5 msec, fast enough for high-speed packaging or bottling lines. The sensor body is plastic, rated IP67 and IP69K, so it will survive high-pressure hot-water washdown in food or beverage environments. Supply voltage is 10–30 VDC; the prewired 2 m cable (Bare Wire) connects directly to your control cabinet. An amber indicator light confirms target detection. The selectable Light On/Dark On switching mode lets you match the output logic to your PLC input. For transparent targets with the P-Opaquing function, set to Dark On — the sensor outputs when the light beam is restored (i.e., no object present), which filters out surface reflections. Compliance documentation includes CE marking. We do not have RoHS or UL specific certificates; if your incoming inspection requires those, request them with your RFQ. The M18 threaded barrel (18 mm) mounts via an M18 bracket. Overall length is 41 mm. The 2 m prewired cable has three leads—brown, blue, and black (PNP output). The minimum detectable object is a 150 mm x 150 mm glass plate — that's the test reference for the P-Opaquing function. For smaller transparent targets, you may need a retroreflective sensor with a focused beam (different variant). The sensing distance on opaque objects (with a standard reflector) is also 500 mm; the 100 mm minimum applies when using the P-Opaquing feature on close-range clear targets. Set the switching mode via the internal DIP switch (accessible by removing the cap). Light On: output turns on when the beam is interrupted (opaque object). Dark On: output turns on when the beam is restored (clear object). For transparent detection, Dark On is mandatory.","metaTitle":"Omron E3FA-BP112M M18 Retroreflective Sensor, 500mm, PNP","metaDescription":"Current-production Omron E3FA-BP112M M18 retroreflective photoelectric sensor. P-Opaquing for transparent objects. 500 mm range, PNP, 10–30 VDC, IP67/IP69K. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"Brand":"OMRON","Series":"E3FA","Features":"P-Opaquing Function; Transparent Detection","IP Rating":"IP67; IP69K","Standards":"CE","Display Qty":"1","Product Type":"Photoelectric Sensor","Body Material":"Plastic","Response Time":"0.5 msec","Output Circuit":"PNP","Overall Height":"41 mm","Sensing Method":"Retroreflective","Supply Voltage":"10-30V DC","Sensor Diameter":"17 mm","lifecycle_stage":"current","Display Sell UOM":"EA","Overall Diameter":"18 mm","Sensor Body Style":"Cylindrical","Minimum Object Size":"150mm x 150mm Glass plate","Output Circuit Type":"PNP","Sensor Cable Length":"2 m","Supply Voltage Type":"DC-Only","Emitted Sensor Light":"Red Light","Electrical Connection":"Bare Wire","Sensor Switching Mode":"Selectable Light On/Dark On","Load Current - Maximum":"100 mA","Nominal Sensor Diameter":"M18 Threaded","Sensor Face Orientation":"Straight","DC Supply Voltage Rating":"10-30V DC","Includes Indicator Lights":"Indicator Lights Included","Sensing Distance - Maximum":"500 mm","Sensing Distance - Minimum":"100 mm","Electrical Installation Type":"Prewired Cable","Operating Temperature - Maximum":"131 °F","Operating Temperature - Minimum":"-13 °F","Cylindrical Sensor Dims. (D x L)":"18 mm x 41 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$46.99","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/E3FA-BP112M/alternatives.json"},"ai":{"faq":[{"question":"Can I use the E3FA-BP112M in place of an E3FA-DP122M?","answer":"Mechanically and electrically yes — both are M18 PNP sensors with the same wiring and supply voltage. But the BP112M is retroreflective (requires a reflector, detects transparent objects) while the DP122M is diffuse (no reflector, detects opaque objects). The application optics are different, so a direct swap without changing the setup will not work as intended."},{"question":"What is the P-Opaquing function?","answer":"It is a patented feature that lets the sensor see through transparent materials. A standard retroreflective sensor would see a clear glass bottle as 'no object' (the beam passes through), but the P-Opaquing function alternates the LED polarity and compares the received light to detect the change caused by the transparent object."},{"question":"What compliance certifications does this sensor have?","answer":"The evidence records CE marking. For RoHS or UL certificates, please request with your RFQ and we will verify against the actual production lot."},{"question":"What is the maximum load current on the PNP output?","answer":"100 mA maximum. Make sure your PLC input module or load does not exceed that."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E3FA-BP112M","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/E3FA-BP112M when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}