{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF37B-20DP-0.4V(75)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF37B-20DP-0.4V~175~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF37B-20DP-0.4V~175~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF37B-20DP-0.4V(75)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF37 series, 20 Position, 0.016\" (0.40mm) Pitch, 2 Row, Header, Outer Shroud Contacts, Surface Mount, Gold, 0.030\" (0.75mm) Height Above Board, Solder Retention.","salesMarkdown":"## 0.40mm Pitch, 20-Position, SMT Header — DF37 Series The Hirose DF37B-20DP-0.4V(75) is a 20-position header from the DF37 series of fine-pitch board-to-board connectors. The connector sits 0.030\" (0.75mm) above the board surface and achieves a mated stack height of 0.98mm with its matching receptacle — a tight z-budget for compact handheld or wearable electronics. ## SMT Mounting with Solder Retention Surface-mount termination on a 0.40mm pitch demands precise stencil and placement alignment — the Solder Retention feature adds mechanical hold-downs that keep the header seated during reflow, reducing the risk of skew or tombstoning. The dual-row footprint routes traces between pads at this pitch; a typical PCB design uses micro-vias or blind vias to break out the inner rows. ## Plating Grade and Mating Cycles The (75) suffix variant carries 4.00µin (0.100µm) gold on the contacts, compared to the (53) variant's 2.00µin (0.051µm) gold. The thicker plating on this version supports more mating cycles — relevant if the connector sees field-service disconnect or test-stand use. For a one-time assembly in a sealed consumer device, the thinner plating may suffice; for a module that gets swapped or reworked, the (75) variant is the safer choice.","metaTitle":"Hirose DF37B-20DP-0.4V(75) Header, 20 Pos, 0.40mm Pitch","metaDescription":"Hirose DF37B-20DP-0.4V(75) 20-position header, 0.016\" (0.40mm) pitch, 0.75mm height, gold contacts. SMT, active, RoHS. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"DF37","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":"DF37","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":"0.030\\\" (0.75mm)","Base Product Number":"DF37B","Number of Positions":"20","Mated Stacking Heights":"0.98mm","Contact Finish Thickness":"4.00µin (0.100µm)"}},"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":2500,"price":"$0.58580","currency":"USD"},{"qty":8000,"price":"$0.53732","currency":"USD"},{"qty":16000,"price":"$0.52520","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/3aa4291611ad64fcbe6042571475da76.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DF37B-20DP-0.4V(75) RoHS compliant?","answer":"Yes, it is listed as RoHS Compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF37B-20DP-0.4V~175~2","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/DF37B-20DP-0.4V~175~2 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}}