{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"879781051","brand":"Molex","brandSlug":"molex","productSlug":"879781051","canonicalUrl":"https://icsourcedirect.com/molex/879781051","factsUrl":"https://icsourcedirect.com/api/mcp/products/879781051","rawCanonicalId":null},"summary":{"shortDescription":"Molex 87978 series, 240-position DDR2 SDRAM DIMM socket, through hole, gold-plated contacts with 30.0µin thickness, board locks and latches, card thickness 0.050\" (1.27mm), black housing, box packaging.","salesMarkdown":"## 240-Pin DDR2 DIMM Socket – Fit and Key Specs The 879781051: Gold contacts at 30.0µin thickness handle repeated memory swaps without fretting corrosion. Compliant with MO-237 standard for DDR2 DIMM sockets, ensuring dimensional consistency across motherboard layouts. ## What Crosses into the Harness You've Got This is a board-level DIMM socket, not a cable connector – there's no harness to re-pin. If you're replacing a failed DDR2 socket on a motherboard, the through-hole footprint and board locks are the critical dimensions to match. The 240-position count is standard for DDR2, but the latch style (standard or low-profile) varies by manufacturer – verify the latch clears your chassis. The black housing colour is cosmetic but helps with visual inspection on the assembly line.","metaTitle":"Molex 879781051 DIMM Connector – 240-Pin DDR2 SDRAM","metaDescription":"Molex 879781051 DDR2 DIMM socket, 240 positions, 0.050\" card thickness, gold contacts, through hole with board locks. Active production – quoted per BOM.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Mfr":"Molex","Color":"Black","Series":"87978","Package":"Box","Features":"Board Lock, Latches","Standards":"MO-237","Memory Type":"DDR2 SDRAM","Mounting Type":"Through Hole","Card Thickness":"0.050\\\" (1.27mm)","Contact Finish":"Gold","Product Status":"Active","Connector Style":"DIMM","lifecycle_stage":"unknown","Mounting Feature":"Normal, Standard - Top","Base Product Number":"087978","Number of Positions":"240","Contact Finish Thickness":"30.0µin (0.76µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.8000","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/879781051/alternatives.json"},"ai":{"faq":[{"question":"Is Molex 879781051 for DDR2 SDRAM only?","answer":"Yes, this connector is designed for DDR2 SDRAM modules. The 0.050\" (1.27mm) card thickness is specific to DDR2 – DDR3 modules use a 1.0mm PCB and will not seat correctly."},{"question":"Does 879781051 have board lock and latches?","answer":"Yes, the connector includes both board locks for solder-through-hole retention and latches to secure the DIMM module in place."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/879781051","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/879781051 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}}