{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM20B(0.8)-30DS-0.4V(53)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"BM20B~10.8~2-30DS-0.4V~153~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM20B~10.8~2-30DS-0.4V~153~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM20B(0.8)-30DS-0.4V(53)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose BM20 series receptacle, center strip contacts, 30 positions, 0.016\" (0.40mm) pitch, 2 rows, surface mount, gold contact finish, 0.031\" (0.80mm) height above board, solder retention features, Tape & Reel.","salesMarkdown":"## 0.40mm Pitch, 0.80mm Stack — the Board-Level Fit The Hirose BM20B(0.8)-30DS-0.4V(53) is a 30-position receptacle from the BM20 series, built for dense board-to-board mezzanine stacking. The 0.016\" (0.40mm) pitch and 0.031\" (0.80mm) mated height define the tightest envelope in this class — the 0.8mm stacking height means the two PCBs sit nearly flush, which drives the component clearance on the underside of the top board. Gold-plated center strip contacts handle signal duty; the dual-row layout packs 30 circuits into a footprint that fits inside a thumbprint. ## Solder Retention for Vibration Resistance The connector includes solder retention features — small metal tabs on the sides that reflow to the PCB pads. These take shear and peel stress off the signal contacts during handling or low-level vibration, which matters when the mated pair is inside a portable device or an enclosure subject to shipping shock. Surface-mount termination with gold contacts keeps contact resistance stable through the reflow cycle. The BM20 series offers the same 0.40mm pitch and 0.80mm stacking height across multiple position counts. The 30-position BM20B(0.8)-30DS-0.4V(53) sits between the 24-position BM20B(0.8)-24DS-0.4V(53) and the 34-position BM20B(0.8)-34DS-0.4V(53), with a 40-position variant also available. No official second-source cross-reference exists, but the BM20 series is a Hirose proprietary footprint — the mating header is a Hirose BM20 series plug with matching 0.40mm pitch and 0.8mm stacking height.","metaTitle":"Hirose BM20B(0.8)-30DS-0.4V(53) Receptacle, 30 Pos","metaDescription":"Hirose BM20 series 30-position receptacle, 0.40mm pitch, 0.80mm stacking height, gold contacts, SMT with solder retention. Active, ROHS3. Sourced to order.","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":"0.031\\\" (0.80mm)","Base Product Number":"BM20B","Number of Positions":"30","Mated Stacking Heights":"0.8mm","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3600","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.36000","currency":"USD"},{"qty":10,"price":"$1.18700","currency":"USD"},{"qty":25,"price":"$1.13640","currency":"USD"},{"qty":50,"price":"$1.11100","currency":"USD"},{"qty":100,"price":"$1.06050","currency":"USD"},{"qty":250,"price":"$0.95952","currency":"USD"},{"qty":500,"price":"$0.88376","currency":"USD"},{"qty":1000,"price":"$0.75750","currency":"USD"},{"qty":2000,"price":"$0.73225","currency":"USD"},{"qty":3000,"price":"$0.70700","currency":"USD"},{"qty":5000,"price":"$0.67165","currency":"USD"},{"qty":10000,"price":"$0.65650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/6c7b71a2bff88c630f5ef7f13273a272.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy BM20B(0.8)-30DS-0.4V(53) with stock?","answer":"Stock levels and lead time are confirmed at quote time — submit an RFQ for current availability and pricing."},{"question":"What is the mating connector for BM20B(0.8)-30DS-0.4V(53)?","answer":"The mating half is a Hirose BM20 series plug header with matching 0.40mm pitch and 0.8mm stacking height. The specific order code depends on the position count and contact arrangement needed for your board stack."},{"question":"Is BM20B(0.8)-30DS-0.4V(53) RoHS compliant?","answer":"Yes, it is ROHS3 compliant, meeting the latest EU RoHS exemption requirements."},{"question":"What is the pitch and stacking height of BM20B(0.8)-30DS-0.4V(53)?","answer":"The contact pitch is 0.016\" (0.40mm) and the mated stacking height is 0.8mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM20B~10.8~2-30DS-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~10.8~2-30DS-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}}