{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E3T-SL11","brand":"Omron","brandSlug":"omron","productSlug":"E3T-SL11","canonicalUrl":"https://aoctrl.com/omron/E3T-SL11","factsUrl":"https://aoctrl.com/api/mcp/products/E3T-SL11","rawCanonicalId":null},"summary":{"shortDescription":"E3T-SL11, E3T Series, Miniature Square Photoelectric Sensor, Diffuse, NPN, 12-24V DC, 15mm Max Sensing Distance, IP67, 2m Cable.","salesMarkdown":"The E3T-SL11 is a miniature square photoelectric sensor from the E3T series, using diffuse-reflective sensing with a red LED. It switches NPN (Light On) at 12-24V DC and carries IP67 for washdown areas. Sensing range is 5 to 15 mm; response time is 1 ms, and the maximum load current is 50 mA. ## How the key ratings translate to fit The 5–15 mm sensing distance range gives you both the minimum detectable object (0.15 mm diameter) and the maximum working distance. In a diffuse sensor the emitter and receiver are in the same housing, so no separate reflector or receiver is needed — aim the face at the target and mount. NPN output (Light On) sinks up to 50 mA, enough to drive most PLC inputs directly. The 1 ms response time suits moderate-speed detection (conveyors, part presence). The body is PBT, IP67 rated, and operates from -13 °F to 131 °F. Prewired with 2 m of bare-wire cable — no connector to source separately. The right-angle face orientation means the sensing axis is perpendicular to the cable exit. Onboard protections (output reverse polarity, output short-circuit, supply reverse polarity) reduce the chance of damage from wiring errors in the field. A buyer sourcing E3T-SL11 may see the E3T-SR21 2M as a possible alternative, but it is a retroreflective sensor — it requires a reflector opposite the emitter and operates at up to 200 mm. The SL11 is diffuse: no reflector needed, range 15 mm. Physical form also differs: the SL11 is rectangular (25 x 7 x 11 mm), while the SR21 2M is cylindrical (11 mm diameter, 24 mm length). They are not drop-in interchangeable; a panel designed for diffuse sensing would need a mechanical and wiring change to use the retroreflective unit.","metaTitle":"E3T-SL11 Miniature Diffuse Photoelectric Sensor, NPN, IP67,","metaDescription":"E3T-SL11 miniature square diffuse sensor from E3T series. NPN output, 12-24V DC, 15 mm sensing distance, IP67, 1 ms response. Active production, sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"title":"E3T-SL11","Series":"E3T","Features":"Output Reverse Polarity Protection; Output Short-Cut Protection; Power Supply Reverse Polarity Protection","IP Rating":"IP67","Standards":"CE","Display Qty":"1","description":"Miniature Square Photoelectric Sensor","Product Type":"Photoelectric Sensor","Body Material":"PBT","Overall Depth":"11 mm","Overall Width":"7 mm","Response Time":"1 msec","Output Circuit":"NPN","Overall Height":"25 mm","Sensing Method":"Diffuse","Supply Voltage":"12-24V DC","lifecycle_stage":"current","Display Sell UOM":"EA","Sensor Body Style":"Rectangular","Minimum Object Size":"0.15mm Dia.","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":"Light On","Load Current - Maximum":"50 mA","Sensor Face Orientation":"Right Angle","DC Supply Voltage Rating":"12-24V DC","Includes Indicator Lights":"Indicator Lights Included","Sensing Distance - Maximum":"15 mm","Sensing Distance - Minimum":"5 mm","Electrical Installation Type":"Prewired Cable","Operating Temperature - Maximum":"131 °F","Operating Temperature - Minimum":"-13 °F"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$64.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3760c5d2b7cf39480caf572fc9e9c9c3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to E3T-SL11?","answer":"Among the listed E3T family peers, none share the diffuse sensing method. The E3T-SR21 2M and E3T-SR22 2M are retroreflective; the E3T-FT11 is through-beam. For a diffuse application, the E3T-SL11 itself is the direct fit."},{"question":"What is the listed series?","answer":"The series is E3T."},{"question":"What features does the E3T-SL11 have?","answer":"It includes output reverse polarity protection, output short-circuit protection, and power supply reverse polarity protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E3T-SL11","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-SL11 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}