{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-747579-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-747579-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-747579-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-747579-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMPLIMITE HD-20, HDE-20, HDP-20, HDP-22 series, 3-747579-4, stepped outer ferrule, shielded, fits DB9/15/25 shell sizes, 9~25 positions, Bulk package.","salesMarkdown":"## Stepped Ferrule That Covers Three Shell Sizes The TE Connectivity 3-747579-4 is a stepped outer ferrule for the AMPLIMITE HD-20, HDE-20, HDP-20, and HDP-22 D-subminiature connector series. This single ferrule design accommodates DB9, DB15, and DB25 shell sizes — the stepped profile lets it seat correctly on each shell diameter without needing three separate part numbers on the BOM. It is shielded, meaning the ferrule provides a continuous ground path from the cable braid to the connector shell when used with the matching backshell hardware. ## What It Fits and Where It Goes The ferrule is designed for use with the AMPLIMITE HD-20, HDE-20, HDP-20, and HDP-22 series D-sub connectors. It accepts cable entry through the backshell and crimps or clamps over the cable jacket and shield braid. The stepped inner diameter matches the rear of the connector shell — 9 uses the smallest step, 15 the middle, 25 the largest. The 9 to 25 position range listed in the spec corresponds to the three shell sizes this ferrule covers.","metaTitle":"TE 3-747579-4 AMPLIMITE Stepped Ferrule, DB9/15/25","metaDescription":"TE Connectivity 3-747579-4 stepped outer ferrule for AMPLIMITE HD-20/HDE-20/HDP-20/HDP-22 D-subs. Shielded, fits DB9/15/25 shell sizes.","metaKeywords":null},"attributes":{"series":"AMPLIMITE HD-20, HDE-20, HDP-20, HDP-22","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["D-Sub & D-Shaped Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Series":"AMPLIMITE HD-20, HDE-20, HDP-20, HDP-22","Package":"Bulk","Features":"Shielded","Accessory Type":"Ferrule, Outer","Product Status":"Active","lifecycle_stage":"unknown","Base Product Number":"747579","Number of Positions":"9 ~ 25","For Use With/Related Products":"AMPLIMITE Series HD-20, HDE-20, HDP-20, HDP-22"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3400","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.34000","currency":"USD"},{"qty":10,"price":"$1.25400","currency":"USD"},{"qty":25,"price":"$1.20760","currency":"USD"},{"qty":50,"price":"$1.19600","currency":"USD"},{"qty":100,"price":"$1.07930","currency":"USD"},{"qty":250,"price":"$1.04432","currency":"USD"},{"qty":500,"price":"$0.95096","currency":"USD"},{"qty":1000,"price":"$0.85179","currency":"USD"},{"qty":2500,"price":"$0.79345","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c13dd1955f5c57b2eb566548e81d24ad.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 3-747579-4 ferrule compatible with?","answer":"The 3-747579-4 stepped ferrule is compatible with TE AMPLIMITE HD-20, HDE-20, HDP-20, and HDP-22 series D-sub connectors in DB9, DB15, and DB25 shell sizes. It fits all three shell sizes from a single part number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-747579-4","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/3-747579-4 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}}