{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"EE-SX771R","brand":"Omron","brandSlug":"omron","productSlug":"EE-SX771R","canonicalUrl":"https://aoctrl.com/omron/EE-SX771R","factsUrl":"https://aoctrl.com/api/mcp/products/EE-SX771R","rawCanonicalId":null},"summary":{"shortDescription":"Omron EE-SX77 Series Through-Beam Photoelectric Sensor, PNP, 5-24V DC, 5 mm Sensing Distance, Dark On, 2 m Cable, IP64.","salesMarkdown":"EE-SX771R is an Omron EE-SX77 series through-beam photoelectric sensor set (transmitter + receiver in one L-slot body). It detects opaque objects as small as 2 mm x 0.8 mm at a fixed 5 mm gap — designed for tight presence or edge detection in packaging, assembly, or part-present stations. Output is PNP, dark-on (conducts when the beam is blocked), switching at 0.17 msec with a 3 kHz frequency, so it tracks fast-moving small parts without missed counts. Supply voltage spans 5-24V DC, making it drop-in compatible with most PLC DI cards and industrial logic levels. Housing is an L-slot style 13 mm deep, 18 mm wide, 21 mm tall — designed to mount directly on a bracket or actuator fork. Prewired with a 2 m bare-end cable; no connector to purchase separately. Body is PBT with an IP64 seal: dust-tight against fine debris but not rated for pressurized washdowns. The wide supply range (5-24V DC) means you can run it from the same 24V bus as PLC I/O without a regulator. Dark-on logic suits applications where the sensor is normally blocked at rest and unblocked during action — wire accordingly. PNP output sources current up to 50 mA, enough to drive a small PLC input directly. ## How it compares to E3T-ST14 Both are PNP through-beam sensors with 2 m cables, but they fill different gaps. E3T-ST14 (Omron E3T series) reaches 1 m with red LED, runs on 12-24V DC only, and responds in 1 msec with an IP67 body. EE-SX771R covers only 5 mm — it's for fork-light or close-proximity detection rather than long-range. The faster 0.17 msec response and wider supply range (5-24V) matter when the sensor is counting fast cycles or running on a mixed-voltage bus. They are not drop-in interchangeable: panel designed for the E3T-ST14's 1 m gap will not work with a 5 mm sensor, and the supply voltage minimum differs (5V vs 12V).","metaTitle":"Omron EE-SX771R Through-Beam Photoelectric Sensor, PNP, 5-24","metaDescription":"EE-SX771R active-production through-beam sensor: 5 mm range, 0.17 ms response, PNP, dark-on, IP64, compact L-slot. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"title":"EE-SX771R","Series":"EE-SX77","Features":"Compact; Indicator","IP Rating":"IP64","Standards":"CE; RU","Display Qty":"1","description":"OMRON Photoelectric Sensor: Non-Terminated Cable, 5-24V DC, PNP, DC-Only","Body Material":"PBT","Overall Depth":"13 mm","Overall Width":"18 mm","Response Time":"0.17 msec","Output Circuit":"PNP","Overall Height":"21 mm","Sensing Method":"Through-Beam","Supply Voltage":"5-24V DC","lifecycle_stage":"current","Display Sell UOM":"EA","Sensor Body Style":"L-Slot","Minimum Object Size":"2mm x 0.8mm Opaque","Output Circuit Type":"PNP","Sensor Cable Length":"2 m","Supply Voltage Type":"DC-Only","Switching Frequency":"3 kHz","Emitted Sensor Light":"Infrared","Electrical Connection":"Bare Wire","Sensor Switching Mode":"Dark On","Load Current - Maximum":"50 mA","DC Supply Voltage Rating":"5-24V DC","Includes Indicator Lights":"Indicator Lights Included","Sensing Distance - Maximum":"5 mm","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":"$30.48 – $64.14","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/934e5dd17e647c61b3a8df36a3d6eee2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the series of this sensor?","answer":"It belongs to the Omron EE-SX77 series of compact through-beam photoelectric sensors."},{"question":"What compliance marks does it carry?","answer":"CE and RU (EAC) are listed; no UL or RoHS declaration in the record."},{"question":"Can I use E3T-ST14 as a drop-in replacement?","answer":"Not without changes. E3T-ST14 has a 1 m sensing distance and requires 12-24V DC; EE-SX771R has 5 mm range and accepts 5-24V. Wiring and mounting are similar but the application gap must be redesigned."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/EE-SX771R","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/EE-SX771R 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}}