{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM04B-ACHSS-A-GAN-TF","brand":"JST","brandSlug":"jst","productSlug":"BM04B-ACHSS-A-GAN-TF","canonicalUrl":"https://icsourcedirect.com/jst/BM04B-ACHSS-A-GAN-TF","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM04B-ACHSS-A-GAN-TF","rawCanonicalId":null},"summary":{"shortDescription":"JST ACH series, Board to Cable/Wire, 4 positions, 1.20mm pitch, Surface Mount Right Angle, Gold mating contacts, Detent Lock, UL94 V-0, Active","salesMarkdown":"## Right-angle SMT header for 1.2mm pitch wire-to-board The BM04B-ACHSS-A-GAN-TF is a 4-position, single-row header from JST's ACH series, pitched at 0.047\" (1.20mm) and terminated via surface-mount solder in a right-angle orientation. ## Pitch, position count, and locking for BOM fit At 1.20mm pitch and 4 positions, this header occupies a narrow board footprint — roughly 4.8mm along the mating axis plus the right-angle tail overhang. The 3-wall shrouding guides the receptacle into alignment before the detent lock engages. If your BOM calls for 4 positions, this is the correct member; the 5-position variant will not mate with a 4-position receptacle. ## Sourcing and compliance for the build line RoHS compliant and rated UL94 V-0 for the housing material.","metaTitle":"BM04B-ACHSS-A-GAN-TF JST ACH Header 4 Pos 1.2mm SMT","metaDescription":"BM04B-ACHSS-A-GAN-TF JST ACH series 4-position 1.20mm pitch SMT header. Gold-plated contacts, detent lock, UL94 V-0. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"ACH","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":"ACH","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Solder Retention","Shrouding":"Shrouded - 3 Wall","Termination":"Solder","Applications":"-","Contact Type":"Male Blade","Contact Shape":"Rectangular","Mounting Type":"Surface Mount, Right Angle","Connector Type":"Header","Fastening Type":"Detent Lock","Number of Rows":"1","Pitch - Mating":"0.047\\\" (1.20mm)","Product Status":"Active","Voltage Rating":"50V","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Insulation Color":"Natural","Insulation Height":"0.055\\\" (1.40mm)","Ingress Protection":"-","Base Product Number":"BM04B-AC","Insulation Material":"Thermoplastic","Number of Positions":"4","Row Spacing - Mating":"-","Contact Finish - Post":"-","Contact Length - Post":"-","Current Rating (Amps)":"1.5A","Operating Temperature":"-25°C ~ 85°C","Mated Stacking Heights":"-","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":"$0.7800","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.78000","currency":"USD"},{"qty":10,"price":"$0.65500","currency":"USD"},{"qty":100,"price":"$0.58850","currency":"USD"},{"qty":500,"price":"$0.48146","currency":"USD"},{"qty":1000,"price":"$0.42797","currency":"USD"},{"qty":4500,"price":"$0.38785","currency":"USD"},{"qty":9000,"price":"$0.35575","currency":"USD"},{"qty":13500,"price":"$0.34772","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/732fe1a317550d362fa3226e3dd40a0a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the pitch and number of positions of BM04B-ACHSS-A-GAN-TF?","answer":"The pitch is 0.047\" (1.20mm) and it has 4 positions, all loaded, in a single row."},{"question":"What locking mechanism does the BM04B-ACHSS-A-GAN-TF use?","answer":"It uses a detent lock integrated into the shrouded housing — no separate latch or screw is required."},{"question":"Is BM04B-ACHSS-A-GAN-TF RoHS compliant?","answer":"Yes, it is RoHS Compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/BM04B-ACHSS-A-GAN-TF","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/BM04B-ACHSS-A-GAN-TF 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}}