{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0855135004","brand":"Molex","brandSlug":"molex","productSlug":"0855135004","canonicalUrl":"https://icsourcedirect.com/molex/0855135004","factsUrl":"https://icsourcedirect.com/api/mcp/products/0855135004","rawCanonicalId":null},"summary":{"shortDescription":"Molex 85513 Series 0855135004, 4p4c (RJ9/RJ10/RJ22) Cat3 jack, SMT vertical, gold flash contacts, unshielded, -40°C to 85°C, Tape & Reel.","salesMarkdown":"## 4p4c Cat3 RJ Jack for Voice and Low-Speed Data The Molex 0855135004 is a 4p4c (RJ9, RJ10, RJ22) jack from the 85513 series, rated Cat3. This jack is designed for voice-grade telecom, 10BASE-T Ethernet, and low-speed serial data links where the Cat3 frequency ceiling (16 MHz) is sufficient. The Cat3 rating limits this jack to applications below 16 MHz — voice, 10BASE-T, and RS-232 over twisted pair. It is not rated for 100BASE-TX (Cat5) or higher data rates. The unshielded construction (no metal shell or grounding tabs) keeps the part simple and low-cost for non-critical signal paths, but it also means no EMI containment. If the build requires gigabit Ethernet or runs near switching supplies, step up to a shielded Cat5e or Cat6 jack in the same footprint class. ## SMT Vertical Mount — Board Layout Fit This jack is a vertical SMT part, so the plug inserts perpendicular to the PCB. The solder retention feature provides extra mechanical hold during reflow and against cable strain — useful for a connector that sees repeated plug/unplug cycles. The single-row, 1-port design keeps the footprint compact. No official second-source or cross-reference is listed, but the 4p4c Cat3 jack format is a standard interface with multiple manufacturers offering pin-compatible parts — verify the footprint and solder pad layout against the board design before substituting.","metaTitle":"Molex 85513 0855135004, 4p4c Cat3 RJ Jack, SMT","metaDescription":"Molex 0855135004 4p4c (RJ9/RJ10/RJ22) Cat3 jack, SMT vertical, gold flash contacts, -40°C to 85°C. Active production, sourced to order. RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Modular / RJ Connectors"],"specifications":{"Series":"85513","Ratings":"Cat3","Features":"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":"085513","Operating Temperature":"-40°C ~ 85°C","Contact Finish Thickness":"Flash","Number of Positions/Contacts":"4p4c (RJ9, RJ10, RJ22)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0855135004","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/0855135004 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}}