{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E3FB-DP21","brand":"Omron","brandSlug":"omron","productSlug":"E3FB-DP21","canonicalUrl":"https://aoctrl.com/omron/E3FB-DP21","factsUrl":"https://aoctrl.com/api/mcp/products/E3FB-DP21","rawCanonicalId":null},"summary":{"shortDescription":"OMRON E3FB Series photoelectric sensor, diffuse, M18 threaded, PNP output, 100 mm range, M12 4-pin connector, IP67/IP69K.","salesMarkdown":"## Field note on the E3FB-DP21 This is an Omron M18 cylindrical diffuse photoelectric sensor, part of the E3FB series. It uses a red light beam and detects opaque objects as small as 7 mm diameter at up to 100 mm. Output is PNP, switching 100 mA max from a 10-30 VDC supply. Connections are through a 4-pin M12 connector. The brass body is sealed IP67/IP69K so it handles hot washdown cycles. ## vs. E3FB-DP23 – what changes The E3FB-DP23 is the same sensor but with a 1 m sensing distance instead of 100 mm. Everything else – M12 connector, 4-pin PNP wiring, supply range, body material, protection, IP rating – is identical. If your panel was built around the DP23, the DP21 will mechanically and electrically drop in. The only difference is how far it can see. If your target sits beyond 100 mm, the DP21 won't trigger. Measure your target location before swapping. ## Built-in ruggedness The sensor carries output short-circuit protection, output reverse polarity protection, and power supply reverse polarity protection. That means fewer blown outputs from wiring mistakes. The IP67/IP69K seal means you can hose it down at high pressure without worrying about ingress. CE marked.","metaTitle":"OMRON E3FB-DP21 Photoelectric Sensor, M18, 100mm, PNP, IP69K","metaDescription":"Current-production OMRON E3FB-DP21 diffuse photoelectric sensor, 100mm range, 10-30V DC, PNP output, M12 connector, IP67/IP69K, CE. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"title":"E3FB-DP21","Series":"E3FB","Features":"Output Reverse Polarity Protection; Output Short Circuit Protection; Power Supply Reverse Polarity Protection","IP Rating":"IP67; IP69K","Standards":"CE","Display Qty":"1","description":"OMRON Photoelectric Sensor: M18 Threaded, Built-in Connector, 4 - Pin M12, 10-30V DC, PNP, DC-Only","Product Type":"Photoelectric Sensor","Body Material":"Brass","Response Time":"0.5 msec","Number of Pins":"4","Output Circuit":"PNP","Overall Height":"48 mm","Sensing Method":"Diffuse","Supply Voltage":"10-30V DC","Sensor Diameter":"18 mm","lifecycle_stage":"current","Display Sell UOM":"EA","Overall Diameter":"18 mm","Sensor Body Style":"Cylindrical","Minimum Object Size":"7mm Dia. Opaque","Output Circuit Type":"PNP","Supply Voltage Type":"DC-Only","Emitted Sensor Light":"Red Light","Electrical Connection":"M12","Sensor Switching Mode":"Selectable Light On/Dark On","Load Current - Maximum":"100 mA","Sensor Face Orientation":"Right Angle","DC Supply Voltage Rating":"10-30V DC","Includes Indicator Lights":"Indicator Lights Included","Sensing Distance - Maximum":"100 mm","Electrical Installation Type":"Direct Connector","Operating Temperature - Maximum":"131 °F","Operating Temperature - Minimum":"-13 °F"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$32.51","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8f09427557a3dae706a4de302e0b0416.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does this brand provide for E3FB-DP21?","answer":"CE is the only certification listed. No RoHS, REACH, UL, or CSA declarations appear in the spec."},{"question":"What is E3FB-DP21's listed series?","answer":"It belongs to the E3FB series from OMRON."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E3FB-DP21","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/E3FB-DP21 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}}