{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"66505-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"66505-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/66505-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/66505-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMPLIMITE HDP-20 stamped socket contact, 66505-4, 24-28 AWG, gold flash, crimp termination, phosphor bronze.","salesMarkdown":"## Contact Identity and Series Fit The stamped construction keeps per-contact cost low while maintaining the dimensional consistency needed for high-density D-sub housings. The 24-28 AWG wire range is narrow — the contact barrel is sized for these gauges, and using a wire outside this range will not achieve the specified crimp tensile strength. For 24 AWG, the insulation diameter must also be checked against the rear bell mouth of the contact to avoid insulation crimp interference. The crimp tooling should be the TE-certified hand tool or an approved pneumatic applicator for the AMPLIMITE HDP-20 contact family. ## Gold Flash — What It Means for Duty The gold flash finish (a thin gold layer over the base nickel underplate) is standard for stamped contacts in the AMPLIMITE HDP-20 series. Flash gold provides good corrosion resistance for the initial mating and a few subsequent cycles, but it wears through faster than a thicker gold plate (e.g., 30 µ\"). For applications requiring frequent disconnect-reconnect in the field, consider a contact with a heavier gold plating. For a one-time install in a controlled environment, the flash gold is adequate.","metaTitle":"TE 66505-4 AMPLIMITE HDP-20 Socket Contact, Gold Flash","metaDescription":"TE Connectivity 66505-4 stamped socket contact for AMPLIMITE HDP-20 series. 24-28 AWG, gold flash, crimp termination. Active lifecycle, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circular Connectors","Multi-Purpose Circular"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Type":"Stamped","Series":"AMPLIMITE HDP-20","Package":"Tape & Reel (TR) Cut Tape (CT)","Wire Gauge":"24-28 AWG","Pin or Socket":"Socket","Contact Finish":"Gold","Product Status":"Active","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Base Product Number":"66505","Contact Termination":"Crimp","Contact Finish Thickness":"Flash"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/973b1b9912019e9c57fea6eb04022173.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 66505-4 socket contact?","answer":"The 66505-4 is sourced to order through independent distribution."},{"question":"What is the wire gauge range for 66505-4?","answer":"The 66505-4 accepts 24-28 AWG wire. The contact barrel is sized for this range; using wire outside it will not achieve a reliable crimp."},{"question":"Is 66505-4 a socket or pin contact?","answer":"The 66505-4 is a socket contact. It mates with the AMPLIMITE HDP-20 pin contacts in the corresponding housing."},{"question":"What is the contact finish on 66505-4?","answer":"The contact finish is gold flash over the phosphor bronze base. The flash thickness provides corrosion protection for initial mating and limited reconnection cycles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/66505-4","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/66505-4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}