{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM20B(0.8)-10DP-0.4V(53)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"BM20B~10.8~2-10DP-0.4V~153~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM20B~10.8~2-10DP-0.4V~153~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM20B(0.8)-10DP-0.4V(53)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose BM20 series header, 10 positions, 0.016\" (0.40mm) pitch, 2 rows, gold contacts, surface mount, 0.026\" (0.65mm) above board, solder retention.","salesMarkdown":"## 0.40 mm Pitch Header for Tight Board Stacks The Hirose BM20B(0.8)-10DP-0.4V(53) is a 10-position header from the BM20 series, built for dense board-to-board interconnects where vertical space is at a premium. The mated stack height lands at 0.8mm — tight enough for handheld devices and multi-board modules where every tenth of a millimetre counts. Gold plating on the contact finish keeps the signal path clean across repeated mating cycles, which matters when the connector lives inside a device that gets serviced or reworked. The header sits 0.026\" (0.65mm) above the board surface, and the solder retention feature holds it in place during reflow — no secondary hand-soldering needed to keep the part from walking off its pads. ## Mating Half and Position Variants This header mates with the BM20B(0.8)-10DS-0.4V(53) receptacle, which uses center strip contacts instead of outer shroud contacts — a straight mechanical match at the same 0.40mm pitch and 0.8mm stack height. If the BOM calls for more circuits, the BM20 series offers 16- and 20-position headers (BM20B(0.8)-16DP-0.4V(51) and BM20B(0.8)-20DP-0.4V(53)) at the same 0.65mm board height, so the footprint scales without changing the z-axis clearance.","metaTitle":"Hirose BM20B(0.8)-10DP-0.4V(53) Header, 10 Pos, 0.40mm Pitch","metaDescription":"Hirose BM20 series 10-position header, 0.40mm pitch, 0.8mm stack height. Gold-plated contacts, SMT with solder retention. Active lifecycle, 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":"Header, Outer Shroud Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.026\\\" (0.65mm)","Base Product Number":"BM20B","Number of Positions":"10","Mated Stacking Heights":"0.8mm","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2300","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.23000","currency":"USD"},{"qty":10,"price":"$1.03900","currency":"USD"},{"qty":25,"price":"$0.99680","currency":"USD"},{"qty":50,"price":"$0.97560","currency":"USD"},{"qty":100,"price":"$0.93320","currency":"USD"},{"qty":250,"price":"$0.84840","currency":"USD"},{"qty":500,"price":"$0.76356","currency":"USD"},{"qty":1000,"price":"$0.67872","currency":"USD"},{"qty":2000,"price":"$0.63630","currency":"USD"},{"qty":3000,"price":"$0.61509","currency":"USD"},{"qty":5000,"price":"$0.59388","currency":"USD"},{"qty":10000,"price":"$0.56419","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/6c7b71a2bff88c630f5ef7f13273a272.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the pitch and stacking height of BM20B(0.8)-10DP-0.4V(53)?","answer":"The pitch is 0.016\" (0.40mm) and the mated stacking height is 0.8mm. That 0.40mm pitch is tight enough that the board layout needs careful trace routing between pads — standard 0.5mm pitch design rules won't clear the gap."},{"question":"Does BM20B(0.8)-10DP-0.4V(53) have solder retention features?","answer":"Yes, the header includes solder retention features that anchor it during SMT reflow. This prevents the part from shifting on the pads before the solder solidifies — useful for maintaining alignment in the tight 0.40mm pitch footprint."},{"question":"Where can I buy BM20B(0.8)-10DP-0.4V(53)?","answer":"This part is sourced to order against your BOM quantity. Contact our sales team for current pricing and lead time at quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM20B~10.8~2-10DP-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~10.8~2-10DP-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}}