{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5748676-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"5748676-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/5748676-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/5748676-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMPLIMITE HD-20 backshell, 5748676-3, 25 positions, 180° cable exit, shielded, zinc alloy, nickel over copper plating, includes 4-40 mating screws and grommets, Bulk.","salesMarkdown":"## Two-Piece Shielded Backshell for AMPLIMITE HD-20 D-Subs The TE Connectivity 5748676-3 is a two-piece backshell from the AMPLIMITE HD-20 series, designed to terminate and shield round cable at the rear of a D-sub connector. It accommodates 25-position D-sub connectors with Shell Size B, and is also listed as compatible with HD44-position connectors sharing that shell size. The housing is die-cast zinc alloy with a nickel over copper plating, delivering EMI/RFI shielding for the cable termination point. Assembly hardware is included — the backshell ships with 4-40 mating screws and grommets, so the BOM line for the cable overmold or boot is covered by this single part number. ## Shielding and Grounding Path The zinc alloy shell with nickel over copper plating creates a continuous conductive path from the D-sub connector's metal shell to the cable braid or foil shield. When the backshell is clamped and the 4-40 screws are torqued, the shield current from the cable is bled to the connector shell — and from there to the chassis ground through the D-sub's mounting hardware. This is the standard grounding scheme for shielded D-sub cable assemblies in industrial control, instrumentation, and data communication links.","metaTitle":"TE 5748676-3 AMPLIMITE HD-20 Backshell, 25 Pos, Shielded","metaDescription":"TE Connectivity 5748676-3 AMPLIMITE HD-20 two-piece backshell, 25 positions, 180° cable exit, shielded zinc alloy with nickel plating, includes 4-40 mating","metaKeywords":null},"attributes":{"series":"AMPLIMITE HD-20","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 HD-20","Package":"Bulk","Plating":"Nickel over Copper","Features":"Mating Screws 4-40","Hardware":"Assembly Hardware, Grommets","Material":"Metal, Zinc Alloy","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":"5748676","Number of Positions":"25","Compatible D-Sub Size":"25pos and HD44pos","Compatible Shell Size":"B"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$19.4400","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$19.44000","currency":"USD"},{"qty":10,"price":"$19.03500","currency":"USD"},{"qty":25,"price":"$18.52840","currency":"USD"},{"qty":50,"price":"$17.61700","currency":"USD"},{"qty":100,"price":"$15.89580","currency":"USD"},{"qty":250,"price":"$15.79460","currency":"USD"},{"qty":500,"price":"$13.76964","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/12d52ddb00f249645ad6eb9c44552447.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 5748676-3 backshell compatible with TE AMPLIMITE HD-20 25-position connectors?","answer":"Yes. The 5748676-3 is a Shell Size B backshell designed for 25-position AMPLIMITE HD-20 D-sub connectors. It also fits HD44-position connectors that share the same Shell Size B outline."},{"question":"Does the 5748676-3 come with mating screws and grommets?","answer":"Yes. The backshell includes 4-40 mating screws and grommets as part of the assembly hardware. No separate hardware order is needed for the cable termination."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/5748676-3","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/5748676-3 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}}