{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM28B0.6-40DP/2-0.35V(53)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"BM28B0.6-40DP-2-0.35V~153~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM28B0.6-40DP-2-0.35V~153~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM28B0.6-40DP%2F2-0.35V(53)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose BM28 series, 40 position header, 0.014\" (0.35mm) pitch, 2 rows, surface mount, gold contacts, 0.018\" (0.46mm) height above board, 0.6mm stacking height, solder retention.","salesMarkdown":"The Hirose BM28B0.6-40DP/2-0.35V(53) is a 40-position header from the BM28 series, designed for board-to-FPC interconnects where z-height is the tightest constraint. At a 0.014\" (0.35mm) pitch across two rows, this connector targets high-density signal routing inside compact portable devices — think smartphone display links, camera module interfaces, or any assembly where the mated stack height is just 0.6 mm. The outer shroud contacts shield the signal pins during mate and provide the mechanical reference for the FPC alignment. ## Pitch and Stack Height Drive the Board Layout The 0.35 mm pitch is the dimension that governs the PCB footprint — it demands fine-line routing between pads and matches the corresponding FPC pad pitch. The 0.018\" (0.46 mm) height above board keeps the connector profile low, and the 0.6 mm mated stacking height defines the gap between the main PCB and the FPC. That 0.6 mm is the number the mechanical designer works to for enclosure clearance. ## Position Count vs the 36-Position Sibling The BM28B0.6-36DP/2-0.35V(53) is the same pitch, same stacking height, same contact finish — the only difference is 36 positions instead of 40. No functional delta beyond the circuit count.","metaTitle":"Hirose BM28B0.6-40DP/2-0.35V(53) 40 Pos 0.35mm Pitch Header","metaDescription":"Hirose BM28 series 40-position header, 0.35mm pitch, 0.6mm stacking height, gold-plated contacts. SMT with solder retention. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":"BM28","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.014\\\" (0.35mm)","Series":"BM28","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":"0.018\\\" (0.46mm)","Base Product Number":"BM28B0.6","Number of Positions":"40","Mated Stacking Heights":"0.6mm","Contact Finish Thickness":"1.97µin (0.050µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4500","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.45000","currency":"USD"},{"qty":10,"price":"$1.25800","currency":"USD"},{"qty":25,"price":"$1.20440","currency":"USD"},{"qty":50,"price":"$1.17760","currency":"USD"},{"qty":100,"price":"$1.12410","currency":"USD"},{"qty":250,"price":"$1.01708","currency":"USD"},{"qty":500,"price":"$0.93678","currency":"USD"},{"qty":1000,"price":"$0.80295","currency":"USD"},{"qty":2000,"price":"$0.77619","currency":"USD"},{"qty":3000,"price":"$0.74942","currency":"USD"},{"qty":5000,"price":"$0.71195","currency":"USD"},{"qty":10000,"price":"$0.69589","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ca6449a4c8557efb9db70d5c533cefd3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the stacking height of BM28B0.6-40DP/2-0.35V(53)?","answer":"The mated stacking height is 0.6mm, with the connector standing 0.018\" (0.46mm) above the board surface."},{"question":"Is BM28B0.6-40DP/2-0.35V(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/BM28B0.6-40DP-2-0.35V~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/BM28B0.6-40DP-2-0.35V~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}}