{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5-557971-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"5-557971-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/5-557971-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/5-557971-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity 557971 series Cat5 IDC plug, 6p6c (RJ11/RJ12/RJ14/RJ25), 0.530\" body length, IDC termination, gold-plated phosphor bronze contacts, translucent-blue polycarbonate housing, unshielded, bulk.","salesMarkdown":"The TE Connectivity 5-557971-3 is a 6-position, 6-contact (6p6c) IDC plug designed for flat oval cable with stranded 26-28 AWG conductors. It is the plug half of a modular RJ-style interconnect — mates with a standard 6p6c jack (RJ11/RJ12/RJ14/RJ25 registered jack patterns). The translucent-blue polycarbonate housing allows a visual check of the IDC termination through the body. Rated Cat5, it supports 100 MHz signaling for 100BASE-TX Ethernet and similar data applications. IDC termination — no stripping, no crimp tool. Solid wire will not terminate reliably in this plug. ## Obsolete — Sourcing Reality For a new design or a BOM line that needs a drop-in, the closest path is a parametric search for a 6p6c Cat5 IDC plug from TE or a compatible second source.","metaTitle":"TE 5-557971-3 Cat5 IDC Plug, 6p6c, Obsolete","metaDescription":"TE Connectivity 5-557971-3 Cat5-rated 6p6c IDC plug for flat oval stranded 26-28 AWG cable. 50.0µin gold contacts. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Modular / RJ Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Translucent - Blue","Length":"0.530\\\" (13.46mm)","Series":"-","Package":"Bulk","Ratings":"Cat5","Features":"-","Shielding":"Unshielded","Cable Type":"Flat Oval Cable, Stranded Wires","Wire Gauge":"26-28 AWG","Termination":"IDC","Connector Type":"Plug","Contact Finish":"Gold","Product Status":"Obsolete","Voltage Rating":"-","Shield Material":"-","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Housing Material":"Polycarbonate (PC)","Ingress Protection":"-","Base Product Number":"557971","Contact Finish Thickness":"50.0µin (1.27µm)","Number of Positions/Contacts":"6p6c (RJ11, RJ12, RJ14, RJ25)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is 5-557971-3 compatible with Cat5e?","answer":"The plug is rated Cat5, not Cat5e. Cat5e requires tighter crosstalk and return-loss margins. While the plug may pass Cat5e in a short channel with good cable, it is not guaranteed to meet the Cat5e standard. For a Cat5e-rated assembly, use a plug explicitly rated Cat5e or higher."},{"question":"Can I use 5-557971-3 with solid wire?","answer":"No. The plug is designed for flat oval cable with stranded 26-28 AWG wires. Solid conductors will not compress into the IDC slot properly and will produce an unreliable termination."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/5-557971-3","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/5-557971-3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:25.888Z","lastPublished":"2026-07-20T14:34:25.888Z","indexable":true}}