{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM20B-GHDS-G-TF(LF)(SN)","brand":"JST","brandSlug":"jst","productSlug":"BM20B-GHDS-G-TFLFSN","canonicalUrl":"https://icsourcedirect.com/jst/BM20B-GHDS-G-TFLFSN","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM20B-GHDS-G-TF(LF)(SN)","rawCanonicalId":null},"summary":{"shortDescription":"JST GHD series, 20-position dual-row SMT header, 1.25 mm pitch, 1 A per contact, 50 V, gold-plated mating contacts, shrouded with locking ramp, natural PBT housing UL94 V-0","salesMarkdown":"## What This Header Does in a Wire-to-Board Assembly The BM20B-GHDS-G-TF(LF)(SN) is a 20-position, dual-row SMT header from JST's GHD series, designed for wire-to-board interconnects where the cable-side housing plugs into a shrouded, locking header on the PCB. ## Pitch, Stack Height, and Board Fit The mated stack height is 8.5 mm, which determines the z-height clearance above the board. The insulation height of 5.00 mm means the connector body sits well above the PCB surface, leaving room for trace routing under the header if the board layout allows. ## Mating and Termination – What Crosses into the Harness This header mates with JST GHD series cable-side housings that accept crimp terminals. Termination is solder – the header is placed on the PCB and reflowed. The outer shroud contact type means the signal path runs through the shroud, not a separate pin, which is typical for compact SMT headers in this series. Gold plating on the mating face handles repeated connect-disconnect cycles without the fretting corrosion you'd see with tin contacts in a field-service application. ## Sourcing and Lifecycle – Active, No LTB Clock RoHS compliant per the listing. Availability and current pricing confirmed at RFQ time.","metaTitle":"JST BM20B-GHDS-G-TF(LF)(SN) GHD Header – 20 Pos 1.25 mm SMT","metaDescription":"JST GHD series 20-position dual-row SMT header, 1.25 mm pitch, 1 A, 50 V, gold contacts, locking ramp. Active, RoHS. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"GHD","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"JST Sales America Inc.","Style":"Board to Cable/Wire","Series":"GHD","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Solder Retention","Shrouding":"Shrouded - 4 Wall","Termination":"Solder","Applications":"-","Contact Type":"Outer Shroud Contact","Contact Shape":"-","Mounting Type":"Surface Mount","Connector Type":"Header","Fastening Type":"Locking Ramp","Number of Rows":"2","Pitch - Mating":"0.049\\\" (1.25mm)","Product Status":"Active","Voltage Rating":"50V","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"Natural","Insulation Height":"0.197\\\" (5.00mm)","Ingress Protection":"-","Base Product Number":"BM20B-GH","Insulation Material":"Polybutylene Terephthalate (PBT)","Number of Positions":"20","Row Spacing - Mating":"-","Contact Finish - Post":"-","Contact Length - Post":"-","Current Rating (Amps)":"1A","Operating Temperature":"-25°C~85°C","Mated Stacking Heights":"8.5mm","Overall Contact Length":"-","Contact Finish - Mating":"Gold","Contact Length - Mating":"-","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"-","Contact Finish Thickness - Mating":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4900","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.49000","currency":"USD"},{"qty":10,"price":"$1.25900","currency":"USD"},{"qty":100,"price":"$1.13010","currency":"USD"},{"qty":500,"price":"$0.92466","currency":"USD"},{"qty":1250,"price":"$0.82192","currency":"USD"},{"qty":2500,"price":"$0.74487","currency":"USD"},{"qty":6250,"price":"$0.71918","currency":"USD"},{"qty":8750,"price":"$0.68322","currency":"USD"},{"qty":12500,"price":"$0.66781","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Does BM20B-GHDS-G-TF(LF)(SN) mate with standard GHD series cable housings?","answer":"Yes – it mates with JST GHD series receptacles that use the same 1.25 mm pitch and locking ramp interface. The 20-position dual-row header requires a matching 20-position dual-row cable housing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/BM20B-GHDS-G-TFLFSN","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/jst/BM20B-GHDS-G-TFLFSN 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}}