{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-928776-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-928776-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-928776-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-928776-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMPMODU Mod II PCB single-post pin, 3-928776-4, 0.025 in (0.64mm) square pin, tin contact finish 39.4µin, press-fit termination, 0.520 in overall length, for 0.063 in (1.60mm) board thickness, non-insulated, active production.","salesMarkdown":"The 3-928776-4 is a non-insulated single-post pin from the AMPMODU Mod II series, a 0.025 in (0.64mm) square pin on both the above-flange and below-flange sections. The press-fit termination is designed for a 0.063 in (1.60mm) thick PCB, with a mounting hole diameter of 0.035 in (0.89mm). The 0.025 in square profile mates with standard AMPMODU receptacles and crimp sockets — the same pin size used across the Mod II family for wire-to-board and board-to-board jumpers. The tin plating at 39.4µin (1.00µm) suits applications where the pin is mated infrequently, typically under 50 cycles, and where cost per position matters more than gold's corrosion margin. Overall length is 0.520 in (13.21mm), which gives enough standoff above the board for a receptacle to fully engage without bottoming out on the solder side. The pin retention feature in the terminal style keeps the post seated during the press-fit operation and subsequent handling. ## Board thickness and hole size — the fit parameters The press-fit tail is calibrated for a PCB thickness of 0.063 in (1.60mm). The recommended mounting hole diameter is 0.035 in (0.89mm) — this interference fit provides the retention force without damaging the plated through-hole barrel. The below-flange pin size matches the above-flange at 0.025 in square, so the same receptacle works on both ends if the pin is used as a through-board jumper. The total length of 0.520 in leaves roughly 0.200 in above a 0.063 in board after the press-fit shoulder seats. Sourced through independent distribution channels. ## Tin vs gold — when to pick this over the plated sibling The 3-928776-4 uses tin contact finish at 39.4µin. The gold-plated sibling, 3-928776-3, carries the same pin dimensions and press-fit geometry — the only difference is the plating. Tin is adequate for applications with fewer than 50 mating cycles and non-corrosive environments. Gold is specified where the pin sees repeated insertion, long-term storage, or exposure to industrial atmospheres.","metaTitle":"3-928776-4 TE Connectivity AMPMODU Mod II PCB Single-Post","metaDescription":"Active TE Connectivity AMPMODU Mod II PCB single-post pin, 0.025 in square, tin plated, 0.520 in overall length, press-fit termination for 0.063 in board.","metaKeywords":null},"attributes":{"series":"AMPMODU Mod II","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","PCB Single-Post Pins"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Series":"AMPMODU Mod II","Package":"Tape & Reel (TR) Cut Tape (CT)","Insulation":"Non-Insulated","Termination":"Press-Fit","Mounting Type":"Through Hole","Terminal Type":"Single Post","Contact Finish":"Tin","Product Status":"Active","Terminal Style":"Pin Retention","Board Thickness":"0.063\\\" (1.60mm)","Flange Diameter":"-","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"-","Length - Overall":"0.520\\\" (13.21mm)","Base Product Number":"928776","Length - Above Flange":"-","Length - Below Flange":"-","Material - Insulation":"-","Mounting Hole Diameter":"0.035\\\" (0.89mm)","Pin Size - Above Flange":"0.025\\\" (0.64mm) Square","Pin Size - Below Flange":"0.025\\\" (0.64mm) Square","Contact Finish Thickness":"39.4µin (1.00µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1600","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.16000","currency":"USD"},{"qty":10,"price":"$0.13000","currency":"USD"},{"qty":25,"price":"$0.12120","currency":"USD"},{"qty":50,"price":"$0.11500","currency":"USD"},{"qty":100,"price":"$0.10880","currency":"USD"},{"qty":250,"price":"$0.10132","currency":"USD"},{"qty":500,"price":"$0.09548","currency":"USD"},{"qty":1000,"price":"$0.09047","currency":"USD"},{"qty":2500,"price":"$0.08380","currency":"USD"},{"qty":100000,"price":"$0.03062","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/8531755fa527653d8640f1d143f8f423.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 3-928776-4 and get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current pricing and lead time — availability is confirmed at quote time against your BOM quantity."},{"question":"What is the overall length and recommended PCB thickness for 3-928776-4?","answer":"The overall length is 0.520 in (13.21mm). The press-fit tail is designed for a PCB thickness of 0.063 in (1.60mm) with a mounting hole diameter of 0.035 in (0.89mm)."},{"question":"How does 3-928776-4 compare to the gold-plated 3-928776-3?","answer":"Both parts share the same 0.025 in square pin size, press-fit termination, and overall dimensions. The difference is the contact finish: 3-928776-4 is tin plated (39.4µin), while 3-928776-3 uses gold plating. Tin is cost-effective for low-cycle, non-corrosive applications; gold is preferred for higher mating cycle counts or harsher environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-928776-4","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/3-928776-4 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}}