{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"646478-5","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"646478-5","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/646478-5","factsUrl":"https://icsourcedirect.com/api/mcp/products/646478-5","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Z-PACK hard metric Type A shroud for male pins, 154 positions, 2.00mm pitch, 5+2 rows, through-hole mount, gray, tray package, contacts not included.","salesMarkdown":"The TE Connectivity 646478-5 is a Z-PACK hard metric Type A shroud designed to guide and protect male pin headers in backplane-to-daughtercard interconnects. This is the receptacle-side frame — it does not carry pins itself. With 154 positions arranged in a 5 + 2 row configuration (five signal rows plus two outer shield rows) on a 2.00 mm pitch, it matches the standard hard metric footprint specified in IEC 61076-4-101. The gray housing is through-hole mounted and comes in tray packaging. ## What the 154 Positions and 5+2 Row Count Mean for Your Backplane Layout The 154-position count in a 5 + 2 row arrangement means this shroud accepts a mating header with 154 signal pins plus dedicated shield contacts in the outer rows. The 5 + 2 row pattern is the Type A variant of the hard metric standard — the five inner rows carry signals, and the two outer rows provide a ground shield plane that reduces crosstalk between adjacent columns. The listing explicitly states contacts are not included. This shroud arrives as an empty plastic frame — the male pins that populate the 154 positions must be ordered separately as Z-PACK crimp or press-fit terminals. A common mistake is ordering only the shroud and discovering the backplane has no pins during assembly. ## Lifecycle and Compliance — Active Production, ROHS3 Compliant No obsolescence notice or last-time-buy window is in effect, so this shroud can be specified into new backplane designs without near-term supply risk. The ROHS3 compliance covers the full substance restriction list, including the four phthalates added in the 2015 amendment. ## Mating and Termination — What Connects to This Shroud This shroud mates with Z-PACK hard metric Type A male pin headers that carry the corresponding 154-position, 5 + 2 row pin arrangement on the same 2.00 mm pitch. The through-hole mounting style allows the shroud to be wave-soldered to the backplane. The shroud's internal keying and polarization features prevent mis-mating with non-Type A headers — the physical keying is built into the shroud walls, so a Type B or Type C header will not insert.","metaTitle":"TE Connectivity 646478-5 Z-PACK Shroud, 154 Pos, 2.00mm","metaDescription":"TE Connectivity 646478-5 Z-PACK hard metric Type A shroud for male pins, 154 positions, 2.00mm pitch, 5+2 rows, through-hole, gray.","metaKeywords":null},"attributes":{"series":"Z-PACK","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Backplane Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Note":"Contacts Not Included","Color":"Gray","Pitch":"0.079\\\" (2.00mm)","Series":"Z-PACK","Package":"Tray","Features":"-","Mounting Type":"Through Hole","Connector Type":"Shroud for Male Pins","Number of Rows":"5 + 2","Product Status":"Active","Connector Style":"Hard Metric, Type A","Connector Usage":"-","lifecycle_stage":"unknown","Base Product Number":"646478","Number of Positions":"154"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1400","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.14000","currency":"USD"},{"qty":10,"price":"$3.68400","currency":"USD"},{"qty":32,"price":"$3.66563","currency":"USD"},{"qty":64,"price":"$3.62797","currency":"USD"},{"qty":256,"price":"$3.25203","currency":"USD"},{"qty":960,"price":"$3.00765","currency":"USD"},{"qty":2400,"price":"$2.68809","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Does the 646478-5 come with contacts?","answer":"No — the listing explicitly notes that contacts are not included. The shroud ships as an empty plastic frame. The 154 male pins must be ordered separately as Z-PACK terminals."},{"question":"What is the pitch of the 646478-5?","answer":"The pitch is 2.00 mm (0.079 inches), which is the standard pitch for Z-PACK hard metric backplane connectors."},{"question":"Where can I buy 646478-5?","answer":"This part is sourced to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/646478-5","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/646478-5 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}}