{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5749889-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"5749889-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/5749889-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/5749889-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMPLIMITE.050 III series, 5749889-3, two-piece backshell, 50 positions, D shell size, 180° cable exit, shielded metal, nickel over copper plating, includes spring lock and assembly hardware.","salesMarkdown":"The TE Connectivity AMPLIMITE.050 III 5749889-3 is a two-piece shielded backshell for D-subminiature connectors. It fits the D shell size, accommodating both standard 50-position and high-density 78-position D-subs. The 180° cable exit routes the cable straight out the back — a clean inline path for panel-mount or cable-assembly applications where a right-angle exit would clash with the enclosure wall. The shell is zinc with nickel over copper plating, giving a continuous conductive surface for EMI shielding. The spring lock holds the two halves together without loose screws, and the assembly hardware and strain relief are included in the bag — no extra parts to source for a standard install. ## Shielding and Grounding — Why the Plating Matters Nickel over copper on a zinc shell provides a low-resistance path from the cable braid to the D-sub shell. The nickel finish also resists corrosion in industrial cabinet environments where humidity cycles are routine. ## What's in the Bag The backshell ships as a bagged kit: two shell halves, the spring lock, and the assembly hardware for the strain relief. No separate order for jack-screws or a cable clamp — the hardware is part of the base product number 5749889. The spring lock eliminates the need for a separate latch or screw to keep the halves closed during cable assembly.","metaTitle":"TE AMPLIMITE .050 III 5749889-3 Backshell, 50 Pos, Shielded","metaDescription":"TE AMPLIMITE .050 III 5749889-3 two-piece backshell, 50 positions, 180° cable exit, shielded zinc with nickel plating, includes hardware.","metaKeywords":null},"attributes":{"series":"AMPLIMITE .050 III","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["D-Sub & D-Shaped Connectors","D-Sub Backshells & Hoods"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Silver","Series":"AMPLIMITE .050 III","Package":"Bag","Plating":"Nickel over Copper","Features":"Spring Lock","Hardware":"Assembly Hardware, Strain Relief","Material":"Metal, Zinc","Shielding":"Shielded","Cable Exit":"180°","Cable Type":"Round","Accessory Type":"Two Piece Backshell","Product Status":"Active","lifecycle_stage":"unknown","Primary Material":"Metal","Base Product Number":"5749889","Number of Positions":"50","Compatible D-Sub Size":"50pos and HD78pos","Compatible Shell Size":"D"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.6900","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.69000","currency":"USD"},{"qty":10,"price":"$10.57400","currency":"USD"},{"qty":25,"price":"$10.29400","currency":"USD"},{"qty":50,"price":"$9.90240","currency":"USD"},{"qty":100,"price":"$9.17500","currency":"USD"},{"qty":250,"price":"$9.11912","currency":"USD"},{"qty":500,"price":"$8.78344","currency":"USD"},{"qty":1000,"price":"$7.83236","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/a8ac266cfeb509d85187c2fdd98dabf0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does the 5749889-3 include the mounting hardware?","answer":"Yes, the bagged kit includes the assembly hardware and strain relief — no separate order for jack-screws or cable clamp."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/5749889-3","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/5749889-3 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}}