{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E3FA-TN112M","brand":"Omron","brandSlug":"omron","productSlug":"E3FA-TN112M","canonicalUrl":"https://aoctrl.com/omron/E3FA-TN112M","factsUrl":"https://aoctrl.com/api/mcp/products/E3FA-TN112M","rawCanonicalId":null},"summary":{"shortDescription":"Omron Series E3FA, Through-Beam Photoelectric Sensor Set, NPN Output, 20 m Range, M18 Threaded, 2 m Cable, IP67/IP69K.","salesMarkdown":"## Through-beam sensor set for long-range detection The Omron E3FA-TN112M is a through-beam photoelectric sensor set with separate transmitter and receiver in M18 threaded plastic housings, prewired with a 2 m cable. It senses up to 20 m with a minimum opaque object of 7 mm diameter. Output is NPN, 100 mA maximum load, selectable light-on or dark-on switching. Through-beam gives you the longest range and most reliable detection in dusty or misty environments compared to retroreflective or diffuse sensors. The 0.5 msec response suits high-speed part counting or packaging lines. IP67 and IP69K ratings make it field-ready for washdown zones. Output reverse polarity protection, output short circuit protection, and power supply reverse polarity protection are built in. These protections reduce the risk of damage from wiring mistakes — a common cause of returns in the field. ## How this compares to the PNP and connector siblings The E3FA-TP112M is identical in every spec except output circuit: PNP instead of NPN. Same housing, cable length, sensing distance, response time, and ratings. If your PLC input expects a sourcing (PNP) signal, this NPN version will not interface without wiring changes. The E3FA-TN21 shares the same sensing performance and output type but uses a 4-pin M12 connector and a slightly taller housing (45 mm overall height). For panels already wired for connectors, the TN21 avoids a splice; for bare-wire terminations, the TN112M cable simplifies landing.","metaTitle":"Omron E3FA-TN112M Through-Beam Sensor, NPN, 20m, IP69K","metaDescription":"Omron E3FA-TN112M NPN through-beam photoelectric sensor set. M18 threaded, 20m range, 0.5ms response, IP67/IP69K, 2m cable. Active production, 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":"Output Reverse Polarity Protection; Output Short Circuit Protection; Power Supply Reverse Polarity Protection","IP Rating":"IP67; IP69K","Standards":"CE","Display Qty":"1","Body Material":"Plastic","Response Time":"0.5 msec","Output Circuit":"NPN","Overall Height":"41 mm","Sensing Method":"Through-Beam","Supply Voltage":"10-30V DC","Sensor Diameter":"17 mm","lifecycle_stage":"current","Display Sell UOM":"EA","Overall Diameter":"17 mm","Sensor Body Style":"Cylindrical","Minimum Object Size":"7mm Dia. Opaque","Output Circuit Type":"NPN","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":"Right Angle","DC Supply Voltage Rating":"10-30V DC","Includes Indicator Lights":"Indicator Lights Included","Sensing Distance - Maximum":"20 m","Electrical Installation Type":"Prewired Cable","Through Beam Sensor Component":"Photoelectric Sensor Transmitter and Receiver Set","Operating Temperature - Maximum":"131 °F","Operating Temperature - Minimum":"-13 °F"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$41.78","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/E3FA-TN112M/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to the E3FA-TN112M?","answer":"The E3FA-TP112M is the PNP output equivalent; all other specs are identical. If you need the same form factor but with a connector instead of cable, the E3FA-TN21 offers a 4-pin M12 connector."},{"question":"What are the key protection features of the E3FA-TN112M?","answer":"It includes output reverse polarity protection, output short circuit protection, and power supply reverse polarity protection. These protect the sensor from common wiring errors."},{"question":"Will the E3FA-TN112M drop into a panel specified for the E3FA-TP112M without rewiring?","answer":"No. The output circuit is NPN instead of PNP, so the wiring and PLC input compatibility differ. The mounting and connections are the same, but the signal polarity will need adjustment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E3FA-TN112M","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-TN112M 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}}