{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"EE-SX770A","brand":"Omron","brandSlug":"omron","productSlug":"EE-SX770A","canonicalUrl":"https://aoctrl.com/omron/EE-SX770A","factsUrl":"https://aoctrl.com/api/mcp/products/EE-SX770A","rawCanonicalId":null},"summary":{"shortDescription":"Omron EE-SX770A, Series EE-SX77, U-slot through-beam photoelectric sensor, 5 mm sensing distance, NPN dark-on output, 5-24V DC, IP64, 2 m cable.","salesMarkdown":"## U-slot through-beam for tight spaces The Omron EE-SX770A is a U-slot through-beam photoelectric sensor with a 5 mm sensing distance, designed for detecting small opaque objects down to 2 mm x 0.8 mm in confined spaces. Its compact PBT body measures 18 mm wide by 31 mm tall by just 4 mm deep, fitting into tight machine frames or pick-and-place stations where a standard M18 barrel sensor won't go. The through-beam method gives reliable detection of small parts — the emitter and receiver are built into the same U-shaped housing, so alignment is fixed at the factory and no separate reflector or receiver is needed. The 0.17 ms response time and 3 kHz switching frequency handle fast-moving parts on a vibratory feeder or conveyor belt without missing edges. ## NPN dark-on output and wiring Output is NPN (sinking) with a dark-on switching mode — the transistor turns on when the light beam is blocked. Maximum load current is 100 mA, suitable for driving a PLC input or a small relay directly. Supply voltage range is 5-24V DC, covering both 5V logic and 24V industrial control systems without a separate regulator. The sensor comes with a 2 m prewired cable terminated in bare wires, so you land it directly in a terminal block or connector of your choice. The cable is fixed — no quick-disconnect option — so plan the cable route before mounting. An integral indicator light shows output state for setup and troubleshooting. ## IP64 and temperature range Rated IP64, the EE-SX770A is protected against dust ingress and splashing water. Operating temperature range is -13 °F to 131 °F.","metaTitle":"Omron EE-SX770A Photoelectric Sensor, Through-Beam, 5 mm","metaDescription":"Omron EE-SX770A U-slot through-beam photoelectric sensor. 5 mm sensing distance, 0.17 ms response, NPN dark-on output, IP64, 5-24V DC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"title":"EE-SX770A","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, NPN, DC-Only","Body Material":"PBT","Overall Depth":"4 mm","Overall Width":"18 mm","Response Time":"0.17 msec","Output Circuit":"NPN","Overall Height":"31 mm","Sensing Method":"Through-Beam","Supply Voltage":"5-24V DC","lifecycle_stage":"current","Display Sell UOM":"EA","Sensor Body Style":"U-Slot","Minimum Object Size":"2mm x 0.8mm Opaque","Output Circuit Type":"NPN","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":"100 mA","Sensor Face Orientation":"Straight","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":"$67.40 – $72.95","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fcad4ef164e1c412c569108c83806181.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the sensing distance and minimum object size for the EE-SX770A?","answer":"The EE-SX770A has a 5 mm sensing distance and can detect opaque objects as small as 2 mm x 0.8 mm."},{"question":"Does the EE-SX770A have a PNP version?","answer":"No, the EE-SX770A is NPN output only. For a PNP through-beam sensor in a similar form factor, consider the E3Z-T81K 2M, which offers a 15 m sensing range and selectable light-on/dark-on mode."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/EE-SX770A","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-SX770A 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}}