{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E3T-SR12","brand":"Omron","brandSlug":"omron","productSlug":"E3T-SR12","canonicalUrl":"https://aoctrl.com/omron/E3T-SR12","factsUrl":"https://aoctrl.com/api/mcp/products/E3T-SR12","rawCanonicalId":null},"summary":{"shortDescription":"Omron E3T-SR12, retroreflective photoelectric sensor, sensing range 1-20 cm, NPN output, 0.41 kg.","salesMarkdown":"## Retroreflective sensing at 1-20 cm The Omron E3T-SR12 is a retroreflective photoelectric sensor with a sensing range of 1-20 cm, using an NPN output. This means it detects objects by sensing the light reflected back from a separate reflector, not the object itself. The 1-20 cm range suits it for short-distance presence detection on conveyors or in packaging machinery where the sensor and reflector can be mounted opposite each other across a gap. ## NPN output and wiring check The E3T-SR12 uses an NPN (sinking) output, switching the load to ground when the sensor is made.","metaTitle":"Omron E3T-SR12 Retroreflective Sensor, 1-20 cm, NPN","metaDescription":"Omron E3T-SR12 retroreflective photoelectric sensor with 1-20 cm sensing range, NPN output. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"Part #":"E3T-SR12","Weight":"0.41 kgs","Category":"Photoelectric Sensors","Top Category":"Sensors","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$114.55","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/E3T-SR12/alternatives.json"},"ai":{"faq":[{"question":"What is the sensing range of Omron E3T-SR12?","answer":"The sensing range is 1-20 cm in retroreflective mode. This means the sensor and a reflector must be mounted opposite each other within that distance."},{"question":"Is E3T-SR12 NPN or PNP?","answer":"The E3T-SR12 has an NPN (sinking) output. It switches the load to ground when the sensor detects an object."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E3T-SR12","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/E3T-SR12 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}}