{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM20B(0.8)-20DS-0.4V(53)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"BM20B~10.8~2-20DS-0.4V~153~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM20B~10.8~2-20DS-0.4V~153~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM20B(0.8)-20DS-0.4V(53)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose BM20 series receptacle, 20 positions, 0.016\" (0.40mm) pitch, dual-row, surface mount, gold-plated center strip contacts, 0.031\" (0.80mm) height above board, solder retention.","salesMarkdown":"## What this 0.40 mm pitch receptacle does for a tight board stack The Hirose BM20B(0.8)-20DS-0.4V(53) is a 20-position receptacle with center strip contacts, part of the BM20 series. Its 0.016\" (0.40mm) pitch and 0.031\" (0.80mm) mated stack height put it squarely in the FPC-to-board interconnect space for thin handheld and portable equipment — think display ribbon connections, camera module interfaces, or main-to-sub board links where every tenth of a millimeter of z-height is budgeted. ## How the 20-position version compares to the 24- and 30-position siblings The BM20B(0.8)-20DS-0.4V(53) shares the same 0.016\" (0.40mm) pitch, 0.031\" (0.80mm) stack height, dual-row layout, and gold finish with the 24-position BM20B(0.8)-24DS-0.4V(53) and the 30-position BM20B(0.8)-30DS-0.4V(53). A board laid out for the 20-position version will not accept the 24-position part without a new layout; the extra four pads simply are not there. At 0.40 mm pitch, the board footprint requires tight registration between the SMT pads and the solder paste stencil. The solder retention features add mechanical hold during reflow but do not change the pad layout — the standard Hirose-recommended footprint for the BM20 series applies. The 0.80 mm mated stack height means the mating FPC or board must clear any components on the opposing side by at least that height; plan for a keep-out zone under the connector.","metaTitle":"Hirose BM20B(0.8)-20DS-0.4V(53) Receptacle, 0.40mm Pitch","metaDescription":"Hirose BM20 series receptacle, 20 positions, 0.40mm pitch, 0.80mm stack height. Gold-plated contacts, SMT, solder retention. Active production, RoHS compliant.","metaKeywords":null},"attributes":{"series":"BM20","packageCase":null,"mountingType":null,"rohsStatus":"RoHS 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":"0.031\\\" (0.80mm)","Base Product Number":"BM20B","Number of Positions":"20","Mated Stacking Heights":"0.8mm","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3200","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.32000","currency":"USD"},{"qty":10,"price":"$1.11400","currency":"USD"},{"qty":25,"price":"$1.06800","currency":"USD"},{"qty":50,"price":"$1.04540","currency":"USD"},{"qty":100,"price":"$0.99990","currency":"USD"},{"qty":250,"price":"$0.90900","currency":"USD"},{"qty":500,"price":"$0.81810","currency":"USD"},{"qty":1000,"price":"$0.72720","currency":"USD"},{"qty":2000,"price":"$0.68175","currency":"USD"},{"qty":3000,"price":"$0.65903","currency":"USD"},{"qty":5000,"price":"$0.63630","currency":"USD"},{"qty":10000,"price":"$0.60449","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/6c7b71a2bff88c630f5ef7f13273a272.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the pitch and stack height of BM20B(0.8)-20DS-0.4V(53)?","answer":"The pitch is 0.016\" (0.40mm) and the mated stack height is 0.8mm (0.031\" above board). These dimensions define the board footprint density and the z-axis clearance required in the assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM20B~10.8~2-20DS-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~10.8~2-20DS-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}}