{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0855105118","brand":"Molex","brandSlug":"molex","productSlug":"0855105118","canonicalUrl":"https://icsourcedirect.com/molex/0855105118","factsUrl":"https://icsourcedirect.com/api/mcp/products/0855105118","rawCanonicalId":null},"summary":{"shortDescription":"Molex 85510 series modular jack, 0855105118, 6p4c (RJ11, RJ14), vertical SMT, unshielded, gold flash contacts, Cat3 rated, Tape & Reel.","salesMarkdown":"## 6p4c RJ11/RJ14 Jack, Cat3, Vertical SMT The Molex 0855105118 is a 6p4c (RJ11, RJ14) modular jack from the 85510 series, designed for surface-mount termination in a vertical orientation. It carries a Cat3 rating, meaning it's built for voice and low-speed data up to roughly 16 MHz — a common fit for basic telephone lines, fax machines, or legacy PBX equipment. The unshielded construction keeps the cost down and the footprint small, but it won't handle the crosstalk rejection needed for Cat5e or faster Ethernet. A Cat3 jack like this one is rated for frequencies up to about 16 MHz, while a Cat5e jack pushes past 100 MHz. If you're pulling a new network run for Gigabit Ethernet, this isn't the part — you'd need a shielded or unshielded Cat5e/6 jack. But for a straight replacement on an existing Cat3 voice line, the 0855105118 is a direct pitch and pinout match for any standard 6p4c plug. No re-termination needed, no adapter.","metaTitle":"Molex 85510 0855105118 Jack, 6p4c, Cat3, Unshielded","metaDescription":"Molex 0855105118 6p4c RJ11/RJ14 jack, Cat3 rated, vertical SMT, unshielded, gold flash contacts. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Modular / RJ Connectors"],"specifications":{"Series":"85510","Ratings":"Cat3","Features":"Pick and Place Cap, Solder Retention","LED Color":"Does Not Contain LED","Packaging":"Tape & Reel (TR) Cut Tape (CT)","Shielding":"Unshielded","Orientation":"Vertical","Part Status":"Active","Termination":"Solder","Manufacturer":"Molex","Mounting Type":"Surface Mount","Tab Direction":"User Selectable","Connector Type":"Jack","Contact Finish":"Gold","Number of Rows":"1","Number of Ports":"1","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Housing Material":"Liquid Crystal Polymer (LCP), Glass Filled","Ingress Protection":"-","Base Product Number":"085510","Operating Temperature":"-40°C ~ 85°C","Contact Finish Thickness":"Flash","Number of Positions/Contacts":"6p4c (RJ11, RJ14)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/378d285e33ee2f28c13c1615d2e43a08.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 0855105118 shielded?","answer":"No. The 0855105118 is unshielded — no EMI protection. For environments with electrical noise or where shielded cabling is specified, you'd need a shielded modular jack from a different series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0855105118","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/molex/0855105118 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}}