{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM20B(0.6)-20DS-0.4V(53)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"BM20B~10.6~2-20DS-0.4V~153~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM20B~10.6~2-20DS-0.4V~153~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM20B(0.6)-20DS-0.4V(53)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose BM20 series receptacle, center strip contacts, 20 positions, 2 rows, 0.016\" (0.40mm) pitch, gold contact finish, surface mount, solder retention, 0.024\" (0.61mm) above board, 0.6mm mated stacking height.","salesMarkdown":"## Board-Stacking Receptacle for Tight Z-Height Budgets The Hirose BM20B(0.6)-20DS-0.4V(53) is a 20-position receptacle from the BM20 series, designed for board-to-board or FPC-to-board stacking where the vertical gap is at a premium. Its 0.016\" (0.40mm) pitch and dual-row layout pack 20 circuits into a compact footprint, while the 0.6mm mated stacking height — stated directly in the order code — sets the clearance between parallel PCBs. ## What the 0.6mm Stack Height Means for Your Assembly The 0.6mm mated stack height is the defining dimension for this connector — it dictates the gap between the two boards or between a board and an FPC. At that height, the connector sits nearly flush, so the design must account for component keep-outs on the opposing board. The 0.024\" (0.61mm) height above board tells you how much the receptacle itself stands off the PCB before mating; the mating half (a male header or FPC plug from the same BM20 series) fills the rest of the gap. This is not a high-cycle field-service connector; the gold layer protects the base metal during the first few mates and then the contact relies on the underlying nickel barrier. For designs requiring repeated reconnection, consider a thicker gold option in the BM20 family, if available.","metaTitle":"Hirose BM20B(0.6)-20DS-0.4V(53), 0.4mm Pitch","metaDescription":"Hirose BM20 series 20-position receptacle, 0.016\" (0.40mm) pitch, 0.6mm mated stack height, gold contacts, solder retention. Active production, sourced to","metaKeywords":null},"attributes":{"series":"BM20","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.016\\\" (0.40mm)","Series":"BM20","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":"0.024\\\" (0.61mm)","Base Product Number":"BM20B","Number of Positions":"20","Mated Stacking Heights":"0.6mm","Contact Finish Thickness":"2.00µin (0.051µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2000","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.20000","currency":"USD"},{"qty":10,"price":"$1.01500","currency":"USD"},{"qty":25,"price":"$0.97320","currency":"USD"},{"qty":50,"price":"$0.95240","currency":"USD"},{"qty":100,"price":"$0.91100","currency":"USD"},{"qty":250,"price":"$0.82820","currency":"USD"},{"qty":500,"price":"$0.74538","currency":"USD"},{"qty":1000,"price":"$0.66256","currency":"USD"},{"qty":2000,"price":"$0.62115","currency":"USD"},{"qty":3000,"price":"$0.60045","currency":"USD"},{"qty":5000,"price":"$0.57974","currency":"USD"},{"qty":10000,"price":"$0.55075","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/6c7b71a2bff88c630f5ef7f13273a272.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy Hirose BM20B(0.6)-20DS-0.4V(53) with stock?","answer":"Contact us with your target quantity and we will confirm availability and current pricing at quote time."},{"question":"What is the mated stacking height of BM20B(0.6)-20DS-0.4V(53)?","answer":"The mated stacking height is 0.6mm, as indicated in the order code suffix."},{"question":"Does BM20B(0.6)-20DS-0.4V(53) have solder retention features?","answer":"Yes, the connector includes solder retention features to hold it in place during reflow and resist shear forces from the mated cable or flex."},{"question":"What is the contact finish thickness on Hirose BM20B(0.6)-20DS-0.4V(53)?","answer":"The gold contact finish thickness is 2.00µin (0.051µm)."},{"question":"Is BM20B(0.6)-20DS-0.4V(53) RoHS compliant?","answer":"Yes, it is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM20B~10.6~2-20DS-0.4V~153~2","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/hirose-electric-co-ltd/BM20B~10.6~2-20DS-0.4V~153~2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}