{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S12B-XASK-1(LF)(SN)","brand":"JST","brandSlug":"jst","productSlug":"S12B-XASK-1LFSN","canonicalUrl":"https://icsourcedirect.com/jst/S12B-XASK-1LFSN","factsUrl":"https://icsourcedirect.com/api/mcp/products/S12B-XASK-1(LF)(SN)","rawCanonicalId":null},"summary":{"shortDescription":"JST XA series, 12-position single-row header, 2.50mm pitch, right-angle through-hole with press-fit/solder termination, board lock, locking ramp, shrouded 4-wall, tin-plated contacts, rated 3A at 250V, -25°C to 85°C, UL94 V-0.","salesMarkdown":"## 12-Position, 2.50 mm Pitch, 3 A — BOM Fit for Wire-to-Board The S12B-XASK-1(LF)(SN): This is a JST XA series 12-position single-row header, pitched at 2.50 mm between contacts, rated 3 A per circuit at 250 V. The 12 circuits and 2.50 mm pitch set the board footprint — confirm your BOM position count and PCB hole pattern match before committing. That covers most indoor and sheltered outdoor equipment — think control panels, appliances, and automotive interior modules where the ambient stays below 85°C. ## Right-Angle Mount with Board Lock — PCB Layout and Assembly The header mounts through-hole, right-angle to the board. No secondary fastener needed for most applications. For higher cycle life or harsh atmospheres, the XA series also offers gold-plated variants — check the base product number S12B-XAS for options. The base product number is S12B-XAS, which covers the full family of 12-position XA headers. The (LF)(SN) suffix indicates lead-free and tin-plated contacts.","metaTitle":"S12B-XASK-1(LF)(SN) JST XA Header, 12 Pos, 2.50mm","metaDescription":"JST XA series 12-position header, 2.50mm pitch, 3A, 250V, right-angle through-hole with board lock. Active production. Sourced to order.","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 Lock","Shrouding":"Shrouded - 4 Wall","Termination":"Press-Fit, Solder","Applications":"-","Contact Type":"Male Pin","Contact Shape":"Circular","Mounting Type":"Through Hole, Right Angle","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":"0.299\\\" (7.60mm)","Ingress Protection":"-","Base Product Number":"S12B-XAS","Insulation Material":"Polyamide (PA66), Nylon 6/6, Glass Filled","Number of Positions":"12","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.126\\\" (3.20mm)","Current Rating (Amps)":"3A","Operating Temperature":"-25°C~85°C","Mated Stacking Heights":"-","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":"$0.9900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the mating connector for S12B-XASK-1(LF)(SN)?","answer":"This header mates with JST XA series crimp-style receptacle housings, 12-position, 2.50 mm pitch."},{"question":"What is the pitch and position count of S12B-XASK-1(LF)(SN)?","answer":"The pitch is 2.50 mm and the position count is 12, all positions loaded."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/S12B-XASK-1LFSN","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/S12B-XASK-1LFSN 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}}