{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM28B0.6-30DP/2-0.35V(53)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"BM28B0.6-30DP-2-0.35V~153~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM28B0.6-30DP-2-0.35V~153~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM28B0.6-30DP%2F2-0.35V(53)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose BM28 series header, 30 positions, 0.014\" (0.35mm) pitch, 2 rows, gold-plated contacts, surface mount, 0.018\" (0.46mm) height above board, 0.6mm mated stacking height, solder retention features.","salesMarkdown":"## Board-Stacking Fit for Tight Z-Height Budgets The Hirose BM28B0.6-30DP/2-0.35V(53) is a 30-position header from the BM28 series, designed for board-to-board stacking where the vertical gap is the tightest constraint. Its 0.014\" (0.35mm) pitch and 0.6mm mated stacking height put this in the ultra-fine-pitch, sub-1mm mezzanine class — think smartphone internals, wearable PCBs, or any assembly where every tenth of a millimetre of board spacing is allocated. The outer shroud contacts and 0.018\" (0.46mm) height above board mean the header sits nearly flush with the PCB surface, so the mating receptacle determines the final stack height. ## Pitch and Stacking — What the Numbers Mean for Layout At 0.35mm pitch, the trace escape from these 30 positions (dual-row, so 15 per row) demands a high-density PCB fab — standard 0.5mm-pitch routing rules don't apply. The 0.6mm mated stacking height is the total gap between the two PCBs when the header mates with its matching BM28 receptacle; the header itself sits 0.46mm above the board, so the receptacle contributes the remaining 0.14mm. That's a near-contact stack, which keeps the interconnect short for signal integrity but leaves no room for stiffening ribs or alignment posts — the solder joints take the mechanical load. ## Solder Retention and Mounting Surface-mount only, no through-hole option. If you're planning to mate and unmate this connector more than a handful of times, the gold will wear through to the nickel underplate and contact resistance will drift.","metaTitle":"Hirose BM28B0.6-30DP/2-0.35V(53), 0.35mm Pitch, 30 Pos","metaDescription":"Hirose BM28 series header, 30 positions, 0.014\" (0.35mm) pitch, 0.6mm mated stacking height. Gold-plated contacts, SMT with solder retention.","metaKeywords":null},"attributes":{"series":"BM28","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.014\\\" (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":"30","Mated Stacking Heights":"0.6mm","Contact Finish Thickness":"1.97µin (0.050µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4400","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.44000","currency":"USD"},{"qty":10,"price":"$1.21300","currency":"USD"},{"qty":25,"price":"$1.16320","currency":"USD"},{"qty":50,"price":"$1.13820","currency":"USD"},{"qty":100,"price":"$1.08880","currency":"USD"},{"qty":250,"price":"$0.98980","currency":"USD"},{"qty":500,"price":"$0.89082","currency":"USD"},{"qty":1000,"price":"$0.79184","currency":"USD"},{"qty":2000,"price":"$0.74235","currency":"USD"},{"qty":3000,"price":"$0.71761","currency":"USD"},{"qty":5000,"price":"$0.69286","currency":"USD"},{"qty":10000,"price":"$0.65822","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ca6449a4c8557efb9db70d5c533cefd3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the exact pitch and stacking height of BM28B0.6-30DP/2-0.35V(53)?","answer":"The pitch is 0.014\" (0.35mm) and the mated stacking height is 0.6mm. The header itself sits 0.018\" (0.46mm) above the board surface."},{"question":"What is the replacement or equivalent for BM28B0.6-30DP/2-0.35V(53)?","answer":"The functionally identical variant BM28B0.6-30DP/2-0.35V(51) differs only in packaging (Digi-Reel® vs Cut Tape) and is not a second-source substitute — both are the same Hirose BM28 header."},{"question":"Where can I buy BM28B0.6-30DP/2-0.35V(53) and what is the price?","answer":"This part is sourced to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM28B0.6-30DP-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/BM28B0.6-30DP-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}}