{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"EE-SX871A","brand":"Omron","brandSlug":"omron","productSlug":"EE-SX871A","canonicalUrl":"https://icboms.com/omron/EE-SX871A","factsUrl":"https://icboms.com/api/mcp/products/EE-SX871A","rawCanonicalId":null},"summary":{"shortDescription":"Omron EE-SX871A through-beam photomicrosensor, 5 mm slot, NPN open-collector Light-ON output, 5 V supply, 35 mA switching current, chassis mount with M3 screws, -25°C to 55°C operating temperature, tray package.","salesMarkdown":"## 5 mm slot, NPN Light-ON — panel-fit sensor for flag detection The Omron EE-SX871A is a through-beam photomicrosensor with a 5 mm sensing slot, designed for object presence, edge counting, and position verification in industrial control panels and automation equipment. Its NPN open-collector output, configured Light-ON, sinks up to 35 mA when the beam is uninterrupted — a direct interface to PLC digital inputs or relay coils without an external amplifier. The 5 V supply rail is fixed, so the panel's sensor power bus must already provide 5 V, or a dedicated regulator is needed. ## Mounting and environment — cabinet duty, not outdoor Chassis mount with M3 screws; the housing accepts standard M3 hardware through its slots. Verify the bracket hole pattern and screw length — over-torquing or bottoming out in the plastic can crack the housing. The operating temperature range of -25°C to 55°C limits this sensor to conditioned or ventilated enclosures; it is not rated for outdoor, washdown, or under-hood automotive environments. Storage temperature exceeds the operating range, but the sensor should not be run outside the -25°C to 55°C window. ## Output type and load budget The NPN open-collector Light-ON output means the transistor turns on (sinks current) when the beam is made. The maximum switching current is 35 mA — enough for a PLC input, small relay, or LED indicator, but not for a contactor coil or solenoid directly. A pull-up resistor to the load's supply is required if the receiving logic expects a voltage-high signal. The Dark-ON variant (EE-SPX305-W2A) is the complementary logic choice for the same 5 mm slot.","metaTitle":"Omron EE-SX871A Through-Beam Slot Sensor, 5 mm, NPN Light-ON","metaDescription":"Omron EE-SX871A through-beam photomicrosensor with 5 mm slot, NPN open-collector Light-ON output, 5 V supply, -25°C to 55°C. Active lifecycle, sourced to order. Request quote for c","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"has_mpn":"EE-SX871","output_type":"NPN - Open Collector/Light-ON","package_type":"Tray","sensing_type":"Through-Beam","mounting_type":"Chassis Mount, M3 Screw","product_status":"Active","lifecycle_stage":"current","supply_voltage_v":"5.0","switching_current_a":"0.035","sensing_distance_max_mm":"0.197","Operating Temperature High":"-25°C to 55°C(TA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$40.60","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://www.ia.omron.com/data_pdf/cat/ee-sx77_87_ds_e_7_6_csm484.pdf?id=435","sourceUrl":null},"ai":{"faq":[{"question":"What is the supply voltage for EE-SX871A?","answer":"The supply voltage is 5 V, fixed — no wide-range input."},{"question":"What is the output type of EE-SX871A?","answer":"The output is NPN open-collector, Light-ON — the transistor sinks current when the beam is uninterrupted."},{"question":"What is the closest functional second-source for EE-SX871A?","answer":"The EE-SPX305-W2A is a functional peer with the same 5 mm slot and 5 V supply, but its output is NPN Dark-ON and its temperature range is -10°C to 55°C — confirm logic polarity and ambient conditions before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/omron/EE-SX871A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/omron/EE-SX871A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}