{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM28B0.6-20DP/2-0.35V(53)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"BM28B0.6-20DP-2-0.35V~153~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM28B0.6-20DP-2-0.35V~153~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM28B0.6-20DP%2F2-0.35V(53)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose BM28 series, header, outer shroud contacts, 20 positions, 2 rows, 0.014\" (0.35mm) pitch, surface mount, gold contact finish, 0.018\" (0.46mm) above board, 0.6mm mated stacking height.","salesMarkdown":"## 0.6mm Mezzanine Stack — BM28 Header The Hirose BM28B0.6-20DP/2-0.35V(53) is a 20-position header from the BM28 series, designed for board-to-board stacking at a mated height of 0.6mm. The 0.014\" (0.35mm) pitch and dual-row layout pack 20 outer shroud contacts into a footprint that fits tight mezzanine gaps in compact handheld or portable electronics. ## 20 vs 24 Positions — Same Stack, Different Circuit Count The BM28 series offers this 20-position header alongside a 24-position variant (BM28B0.6-24DP/2-0.35V(53)) at the same 0.35mm pitch and 0.6mm stacking height. The decision between them comes down to the number of signal or power lines the board stack needs to route — 20 circuits vs 24 circuits, with no change to the board-to-board gap or footprint width. If your BOM calls for 20 positions, this is the match; the 24-position sibling adds four more lines without altering the vertical clearance. ## Surface Mount with Solder Retention The 0.018\" (0.46mm) height above board keeps the profile low, and the 0.6mm mated stack height is the critical dimension for the mezzanine gap: make sure the opposing receptacle and any components on the underside of the top board clear this height. The 0.35mm pitch demands careful PCB routing — trace widths and spaces must match the tight pad layout.","metaTitle":"BM28B0.6-20DP/2-0.35V(53) Hirose BM28 20-pin Header","metaDescription":"Hirose BM28B0.6-20DP/2-0.35V(53) 20-position header, 0.35mm pitch, 0.6mm stacking height, gold contacts, SMT. Active production — order against 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":"20","Mated Stacking Heights":"0.6mm","Contact Finish Thickness":"1.97µin (0.050µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1700","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.17000","currency":"USD"},{"qty":10,"price":"$0.99000","currency":"USD"},{"qty":25,"price":"$0.94960","currency":"USD"},{"qty":50,"price":"$0.92920","currency":"USD"},{"qty":100,"price":"$0.88880","currency":"USD"},{"qty":250,"price":"$0.80800","currency":"USD"},{"qty":500,"price":"$0.72720","currency":"USD"},{"qty":1000,"price":"$0.64640","currency":"USD"},{"qty":2000,"price":"$0.60600","currency":"USD"},{"qty":3000,"price":"$0.58580","currency":"USD"},{"qty":5000,"price":"$0.56560","currency":"USD"},{"qty":10000,"price":"$0.53732","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ca6449a4c8557efb9db70d5c533cefd3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the stacking height of BM28B0.6-20DP/2-0.35V(53)?","answer":"The mated stacking height is 0.6mm, with the header sitting 0.018\" (0.46mm) above the board surface."},{"question":"Where can I buy BM28B0.6-20DP/2-0.35V(53) and what is the price?","answer":"This part is sourced to order against your BOM quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM28B0.6-20DP-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/BM28B0.6-20DP-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}}