{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0559090840","brand":"Molex","brandSlug":"molex","productSlug":"0559090840","canonicalUrl":"https://icsourcedirect.com/molex/0559090840","factsUrl":"https://icsourcedirect.com/api/mcp/products/0559090840","rawCanonicalId":null},"summary":{"shortDescription":"Molex SlimStack 55909 series, plug with outer shroud contacts, 80 positions, 2 rows, 0.016\" (0.40mm) pitch, surface mount, gold 15.0µin (0.38µm) contact finish, 0.045\" (1.14mm) height above board, solder retention features.","salesMarkdown":"The Molex 0559090840 is an 80-circuit plug from the SlimStack 55909 series, designed as the top half of a board-to-board mezzanine connection. The 0.045\" (1.14mm) height above board and 1.5mm mated stacking height define the z-axis clearance between parallel PCBs — typical for compact handheld or portable device internals where board spacing is tight. The 0.40mm pitch demands precise PCB land patterns and solder paste stencil design — standard FR-4 processes can handle it, but the tight spacing means trace routing between pads is limited. The 1.5mm mated stack height sets the mezzanine gap; the plug's 1.14mm height above board leaves 0.36mm for the mating receptacle's height. This stack is fixed — there is no height adjustment option within the series for this position count.","metaTitle":"Molex SlimStack 0559090840 Plug, 80 Pos, 0.40mm Pitch","metaDescription":"Molex 0559090840 SlimStack 55909 plug, 80 positions, 0.40mm pitch, 1.14mm height, gold plating. Active production, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"SlimStack 55909","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Molex","Pitch":"0.016\\\" (0.40mm)","Series":"SlimStack 55909","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Solder Retention","Mounting Type":"Surface Mount","Connector Type":"Plug, Outer Shroud Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.045\\\" (1.14mm)","Base Product Number":"055909","Number of Positions":"80","Mated Stacking Heights":"1.5mm","Contact Finish Thickness":"15.0µin (0.38µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.8400","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.84000","currency":"USD"},{"qty":10,"price":"$2.49700","currency":"USD"},{"qty":100,"price":"$1.98630","currency":"USD"},{"qty":1000,"price":"$1.64581","currency":"USD"},{"qty":2500,"price":"$1.17447","currency":"USD"},{"qty":5000,"price":"$1.11574","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 0559090840?","answer":"The 0559090840 is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the mating height for 0559090840?","answer":"The mated stacking height is 1.5mm, with the plug itself sitting 0.045\" (1.14mm) above the board surface."},{"question":"Does 0559090840 have solder retention?","answer":"Yes, the part includes solder retention features that hold it in place during reflow soldering, reducing movement on the fine 0.40mm pitch footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0559090840","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/molex/0559090840 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}}