{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5557791-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"5557791-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/5557791-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/5557791-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity 5557791-1 shielded RJ45 jack, 8p8c (8 position 8 contact), right-angle through-hole, gold-plated contacts, Cat3 rated, -40°C to 85°C operating range.","salesMarkdown":"The TE Connectivity 5557791-1 is a shielded RJ45 jack with 8p8c (8 position 8 contact) layout, terminated through-hole at a 90° right angle. The gold-plated phosphor bronze contacts and shielded shell make it a fit for environments where EMI rejection matters — think industrial control panels, telecom equipment, or any enclosure where a non-shielded plastic jack would let noise couple into the signal pair. ## Orientation and Mounting — Board Layout Fit Right-angle orientation means the cable plugs in parallel to the board surface, not perpendicular. That saves vertical clearance inside the enclosure and keeps the patch cord run flat against the panel. The through-hole solder tails give a stronger mechanical anchor than an SMT version would — important when the cable gets tugged during service. Tab direction is down, so the latch on the mating plug faces the board side. This jack is rated Cat3, which means it's tested to perform at frequencies up to 16 MHz — fine for 10BASE-T Ethernet, analog phone lines, and RS-485 serial links. It is not rated for Cat5e (100 MHz) or Cat6 (250 MHz) signaling. If your BOM calls for Gigabit Ethernet or PoE+, this jack will pass the DC power but the signal integrity at higher frequencies will fall short of the standard. The shielded shell helps with common-mode noise rejection, but the Cat3 limit is in the internal PCB trace routing and contact geometry, not just the shield.","metaTitle":"TE 5557791-1 Shielded RJ45 Jack, 8p8c, Right-Angle, Cat3","metaDescription":"TE 5557791-1 shielded RJ45 jack, 8p8c (8 position 8 contact), right-angle through-hole, gold contacts, Cat3 rated, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Modular / RJ Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Series":"-","Package":"Tray","Ratings":"Cat3","Features":"Board Guide, Shorting","LED Color":"Does Not Contain LED","Shielding":"Shielded","Orientation":"90° Angle (Right)","Termination":"Solder","Mounting Type":"Through Hole","Tab Direction":"Down","Connector Type":"Jack","Contact Finish":"Gold","Number of Rows":"1","Product Status":"Active","Number of Ports":"1","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Housing Material":"Polycyclohexylenedimethylene Terephthalate (PCT)","Ingress Protection":"-","Base Product Number":"5557791","Operating Temperature":"-40°C~85°C","Contact Finish Thickness":"50.0µin (1.27µm)","Number of Positions/Contacts":"8p8c (RJ45, Ethernet)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.5551","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/f56529504b66bc16807ca254beb98c8c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 5557791-1 shielded?","answer":"Yes — the jack has a shielded shell to reject electromagnetic interference, important for industrial or telecom environments where noise couples into unshielded connectors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/5557791-1","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/te-connectivity-amp-connectors/5557791-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}