{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM28B0.6-50DP/2-0.35V(53)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"BM28B0.6-50DP-2-0.35V~153~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM28B0.6-50DP-2-0.35V~153~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM28B0.6-50DP%2F2-0.35V(53)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose BM28 series header, 50 positions, 2 rows, 0.014\" (0.35mm) pitch, SMT, gold contacts, 0.018\" (0.46mm) height above board, 0.6mm mated stacking height, solder retention.","salesMarkdown":"## 0.35 mm Pitch, 0.6 mm Stack — BM28 Mezzanine Header The Hirose BM28B0.6-50DP/2-0.35V(53) is a 50-position header from the BM28 series, a board-to-board mezzanine connector family built around a 0.014\" (0.35 mm) pitch and a 0.6 mm mated stacking height. It uses a header with outer shroud contacts, arranged in two rows, and terminates via surface mount with solder retention features. ## Pitch and Positioning At 0.35 mm pitch, this is the finest contact spacing in the BM28 line. That pitch drives the PCB footprint — trace routing between pads is tight, and the mating receptacle must match the same 0.35 mm pitch. The 50 positions give 25 circuits per row, a count that sits between the 40-position (BM28B0.6-40DP/2-0.35V(53)) and 58-position (BM28B0.6-58DP/2-0.35V(53)) siblings in the same 0.6 mm stack height group. Choose the position count to match the signal I/O count on the BOM — no headroom for unused pins at this density. ## Stack Height and Z-Budget The 0.6 mm mated stacking height is the lowest option in the BM28 series. At 0.018\" (0.46 mm) above the board, the header sits nearly flush with the PCB surface after reflow. ## Contact Finish and Duty That is a flash gold — adequate for the moderate mating cycle counts typical of internal device interconnects (50 to 100 cycles) in controlled indoor environments. For applications requiring high-cycle field service or exposure to corrosive atmospheres, a thicker gold finish on the mating half may be needed to maintain contact resistance stability. No through-hole posts; alignment during placement relies on the solder-paste stencil and pick-and-place accuracy. The Tape & Reel packaging (Cut Tape option available) feeds directly into an SMT line.","metaTitle":"Hirose BM28B0.6-50DP/2-0.35V(53), 50 Pos 0.35mm Pitch Header","metaDescription":"Hirose BM28 series header, 50 positions, 0.35 mm pitch, 0.6 mm stacking height. Gold contacts, SMT, active production.","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":"50","Mated Stacking Heights":"0.6mm","Contact Finish Thickness":"1.97µin (0.050µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5800","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.58000","currency":"USD"},{"qty":10,"price":"$1.37700","currency":"USD"},{"qty":25,"price":"$1.31800","currency":"USD"},{"qty":50,"price":"$1.28880","currency":"USD"},{"qty":100,"price":"$1.23020","currency":"USD"},{"qty":250,"price":"$1.11304","currency":"USD"},{"qty":500,"price":"$1.02516","currency":"USD"},{"qty":1000,"price":"$0.87870","currency":"USD"},{"qty":2000,"price":"$0.84941","currency":"USD"},{"qty":3000,"price":"$0.82012","currency":"USD"},{"qty":5000,"price":"$0.77911","currency":"USD"},{"qty":10000,"price":"$0.76154","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ca6449a4c8557efb9db70d5c533cefd3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy BM28B0.6-50DP/2-0.35V(53) available via RFQ confirmation?","answer":"Availability is confirmed at quote time — submit an RFQ for current pricing and lead time."},{"question":"What is the mated stacking height of the BM28B0.6-50DP/2-0.35V(53)?","answer":"The mated stacking height is 0.6 mm, with the header standing 0.018\" (0.46 mm) above the board surface."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/BM28B0.6-50DP-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/BM28B0.6-50DP-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}}