{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5055504020","brand":"Molex","brandSlug":"molex","productSlug":"5055504020","canonicalUrl":"https://icsourcedirect.com/molex/5055504020","factsUrl":"https://icsourcedirect.com/api/mcp/products/5055504020","rawCanonicalId":null},"summary":{"shortDescription":"Molex SlimStack 505550 series, 5055504020, receptacle center strip contacts, 40 positions, 2 rows, 0.016\" (0.40mm) pitch, 0.026\" (0.65mm) height above board, surface mount, gold contact finish 4.00µin.","salesMarkdown":"## 0.40 mm pitch — the footprint is the constraint The part sits 0.026\" (0.65 mm) above the board and mates to a 0.8 mm stack height, which sets the z-axis clearance for the enclosure. The center strip contact arrangement and dual-row layout (2 rows) pack 40 circuits into a narrow body. ## Solder retention — what it means on the line The 5055504020 includes a solder retention feature. On a 0.40 mm pitch SMT part, the risk during reflow is tombstoning or shift from uneven solder paste wetting. The retention pads hold the connector in place through the oven profile, so you don't need a separate adhesive dot or a secondary press operation. It's a small detail that saves a rework step on a high-density board.","metaTitle":"Molex SlimStack 5055504020, 40 Pos 0.40mm Pitch Receptacle","metaDescription":"Molex 5055504020 SlimStack receptacle, 40 positions, 0.40mm pitch, 0.65mm height, gold flash. Active production, ROHS3. Sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":"SlimStack 505550","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 505550","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Solder Retention","Mounting Type":"Surface Mount","Connector Type":"Receptacle, Center Strip Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.026\\\" (0.65mm)","Base Product Number":"505550","Number of Positions":"40","Mated Stacking Heights":"0.8mm","Contact Finish Thickness":"4.00µin (0.100µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6504","priceTiers":[{"qty":1,"price":"$1.35000","currency":"USD"},{"qty":1,"price":"$1.50000","currency":"USD"},{"qty":10,"price":"$1.27800","currency":"USD"},{"qty":10,"price":"$1.11500","currency":"USD"},{"qty":100,"price":"$0.92920","currency":"USD"},{"qty":100,"price":"$1.05540","currency":"USD"},{"qty":1000,"price":"$0.74336","currency":"USD"},{"qty":1000,"price":"$0.83325","currency":"USD"},{"qty":2500,"price":"$0.77770","currency":"USD"},{"qty":2500,"price":"$0.67367","currency":"USD"},{"qty":7000,"price":"$0.65044","currency":"USD"},{"qty":14000,"price":"$0.60398","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/2dac0d6641cb349c96d48282055e3ea8.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/5055504020/alternatives.json"},"ai":{"faq":[{"question":"What is the mated stacking height of 5055504020?","answer":"The mated stacking height is 0.8 mm. The receptacle itself sits 0.026\" (0.65 mm) above the board surface before mating."},{"question":"Does 5055504020 have solder retention?","answer":"Yes, the 5055504020 includes a solder retention feature that holds the connector in place during reflow, eliminating the need for a separate adhesive or secondary press operation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/5055504020","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/5055504020 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}}