{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5019204001","brand":"Molex","brandSlug":"molex","productSlug":"5019204001","canonicalUrl":"https://icsourcedirect.com/molex/5019204001","factsUrl":"https://icsourcedirect.com/api/mcp/products/5019204001","rawCanonicalId":null},"summary":{"shortDescription":"Molex SlimStack 501920 series, Plug Outer Shroud Contacts, 40 positions, 2 rows, 0.020\" (0.50mm) pitch, Surface Mount, Gold contact finish, 4mm mated stacking height.","salesMarkdown":"## 0.50 mm pitch, 40 positions, 4 mm stack — the mezzanine signal path Gold plating on the outer shroud contacts gives the mating interface corrosion resistance across repeated engage cycles, which matters for modules that get swapped in the field or for test headers that see dozens of mates before the build ships. ## What the 4 mm stack height and 0.50 mm pitch mean for the board layout The 0.50 mm pitch forces the board designer into controlled-impedance routing for high-speed signals; the narrow trace-and-space geometry means the PCB fab needs a fine-line capability. Surface-mount termination with gold-plated contacts keeps the signal path clean — no solder tail to add parasitic inductance, and the gold interface avoids the fretting corrosion that tin contacts can develop under thermal cycling in a sealed enclosure.","metaTitle":"Molex SlimStack 5019204001, 40-pos 0.50mm Plug, 4mm Stack","metaDescription":"Molex 5019204001 SlimStack plug, 40 positions, 0.50mm pitch, 4mm mated stack height. Gold contacts, SMT. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":"SlimStack 501920","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Molex","Pitch":"0.020\\\" (0.50mm)","Series":"SlimStack 501920","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"-","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":"0.135\\\" (3.43mm)","Base Product Number":"501920","Number of Positions":"40","Mated Stacking Heights":"4mm","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.9600","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.96000","currency":"USD"},{"qty":10,"price":"$4.36100","currency":"USD"},{"qty":100,"price":"$3.46910","currency":"USD"},{"qty":1500,"price":"$2.48373","currency":"USD"},{"qty":3000,"price":"$2.39503","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/6b24867b6935e04a8e4dff9586d94b99.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the mated stack height for the Molex 5019204001?","answer":"The mated stacking height is 4 mm, which sets the air gap between the two parallel PCBs when the plug is mated with its matching SlimStack receptacle."},{"question":"Is the 5019204001 compatible with 0.50 mm pitch FFC cables?","answer":"No — the 5019204001 is a board-to-board plug with outer shroud contacts designed to mate with a matching SlimStack receptacle, not an FFC connector. The 0.50 mm pitch matches the contact spacing of the receptacle, not an FFC cable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/5019204001","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/5019204001 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}}