{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"B04B-XASK-1-A(LF)(SN)","brand":"JST","brandSlug":"jst","productSlug":"B04B-XASK-1-ALFSN","canonicalUrl":"https://icsourcedirect.com/jst/B04B-XASK-1-ALFSN","factsUrl":"https://icsourcedirect.com/api/mcp/products/B04B-XASK-1-A(LF)(SN)","rawCanonicalId":null},"summary":{"shortDescription":"JST XA header, order code B04B-XASK-1-A(LF)(SN), 4 positions, single row, 2.50 mm pitch, 3 A, 250 V, tin-plated male pins, through-hole, press-fit/solder termination, shrouded with locking ramp.","salesMarkdown":"## 4-circuit XA header with locking ramp The B04B-XASK-1-A(LF)(SN) is the 4-circuit member of JST's XA board-to-cable/wire header line. ## Shrouded housing and stack height The 0.346\" (8.80 mm) insulation height and 11.3 mm mated stack height position the header for wire-to-board connections where the receptacle needs clearance above the PCB.","metaTitle":"JST XA B04B-XASK-1-A(LF)(SN) Header, 4-Pos, 2.50mm, 3A, 250V","metaDescription":"JST XA header B04B-XASK-1-A(LF)(SN): 4 positions, 2.50 mm pitch, 3 A, 250 V, tin-plated male pins, through-hole, shrouded, locking ramp. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Mfr":"JST Sales America Inc.","Style":"Board to Cable/Wire","Series":"XA","Package":"Bulk","Features":"Board Guide","Shrouding":"Shrouded - 4 Wall","Termination":"Press-Fit, Solder","Applications":"-","Contact Type":"Male Pin","Contact Shape":"Circular","Mounting Type":"Through Hole","Connector Type":"Header","Fastening Type":"Locking Ramp","Number of Rows":"1","Pitch - Mating":"0.098\\\" (2.50mm)","Product Status":"Active","Voltage Rating":"250V","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Insulation Color":"Natural","Insulation Height":"0.346\\\" (8.80mm)","Ingress Protection":"-","Base Product Number":"B04B-XAS","Insulation Material":"Polyamide (PA66), Nylon 6/6, Glass Filled","Number of Positions":"4","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.118\\\" (3.00mm)","Current Rating (Amps)":"3A","Operating Temperature":"-25°C~85°C","Mated Stacking Heights":"11.3mm","Overall Contact Length":"-","Contact Finish - Mating":"Tin","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":"$0.3000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does JST provide for B04B-XASK-1-A(LF)(SN)?","answer":"RoHS and REACH compliance documentation is available from JST Sales America Inc."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/B04B-XASK-1-ALFSN","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/B04B-XASK-1-ALFSN 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}}