{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"EE-SPX303","brand":"Omron","brandSlug":"omron","productSlug":"EE-SPX303","canonicalUrl":"https://aoctrl.com/omron/EE-SPX303","factsUrl":"https://aoctrl.com/api/mcp/products/EE-SPX303","rawCanonicalId":null},"summary":{"shortDescription":"Omron EE-SPX303 slot-type photomicrosensor, 13 mm slot width, NPN output, 12-24 VDC supply, IP50, polycarbonate housing, infrared LED.","salesMarkdown":"## Slot sensor for small-part detection The Omron EE-SPX303 is a fixed-slot photomicrosensor — the emitter and receiver are aligned inside a 13 mm polycarbonate fork. It detects an opaque object as small as 2.2 × 0.5 mm passing through the slot, with a differential distance of 0.05 mm max, meaning it catches small parts like pins, tabs, or labels on a high-speed line without external mounting brackets. The infrared LED (940 nm peak) pulses at a response frequency of 100 Hz min, so the sensor can register parts moving past at up to 100 per second — enough for most pick-and-place or conveyor gates. ## NPN output and wiring constraints Output is NPN open-collector, rated 80 mA max load current with a residual voltage of 2.0 V max at that load. The supply is 12 to 24 VDC ±10% with ripple under 5%, drawing 15 mA max. The special connector means soldering is not possible — you need the mating connector housing, so verify the cable assembly before wiring. Both power supply and output have reverse polarity protection — a common failure point in field wiring. The IP50 rating means it's protected against dust ingress but not washdown; keep it inside a dry cabinet or guarded enclosure.","metaTitle":"Omron EE-SPX303 Slot-type Photomicrosensor, 13 mm, NPN","metaDescription":"Omron EE-SPX303 slot-type photomicrosensor, 13 mm sensing distance, NPN output, 12-24 VDC. IP50. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"title":"EE-SPX303","Weight":"Approx. 4 g","Material":"Polycarbonate","Indicator":"Light indicator (red)","description":"Broad Slot-type Photomicrosensor * SAME DAY DELIVERY - 2 UNIT ONLY*","Light source":"Infrared LED (pulse lighting) with a peakwavelength of 940 nm","Sensing object":"Opaque: 2.2 × 0.5 mm min.","Supply voltage":"12 to 24 VDC ±10%, ripple (p-p): 5% max.","Shipping Weight":"1 Kg","lifecycle_stage":"current","Sensing distance":"13 mm (slot width)","Connecting method":"Special connector (soldering not possible)","NPN voltage output":"Load power supply voltage: 12 to 24 VDCLoad current: 80 mA max.OFF current: 0.5 mA max.80 mA load current with a residual voltage of 2.0 V max.10 mA load current with a residual voltage of 1.0 V max.","Current consumption":"15 mA max.","Protection circuits":"Power supply reverse polarity protection,Output reverse polarity protection","Ambient illumination":"3,000 lx max. with incandescent light or","Degree of protection":"IEC IP50","Response frequency *":"100 Hz min.","Vibration resistance":"Destruction : 10 to 55 Hz, 1.5-mm double amplitude for 2 h each in X, Y, and Z directions","Differential distance":"0.05 mm max.","Shock resistance Destruction":"500 m/s2 for 3 times each in X, Y, and Z directions","Ambient humidity rangeOperating":"5% to 85%Storage: 5% to 95%","Ambient temperature rangeOperating":"−10 to +55°CStorage: −25 to +65°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$62.00 – $119.90","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/94f915ffb2d0fdb93489490bbb525910.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional alternative to the EE-SPX303?","answer":"The Omron E3Z-T61K 2M is a through-beam sensor with a 15 m sensing distance, IP67, and NPN output, but it's a separate-emitter-receiver pair, not a slot sensor. The EE-SPX303's fixed 13 mm slot is a different form factor — the E3Z-T61K 2M won't drop into the same panel cutout without rewiring and re-mounting. For a slot-sensor replacement, stick with the EE-SPX303."},{"question":"What is the sensing distance and minimum object size for the EE-SPX303?","answer":"The slot width is 13 mm, and the sensor detects opaque objects as small as 2.2 × 0.5 mm passing through the slot. The differential distance is 0.05 mm max, meaning it can distinguish closely spaced parts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/EE-SPX303","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-SPX303 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}}