{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S12B-XASK-1","brand":"JST","brandSlug":"jst","productSlug":"S12B-XASK-1","canonicalUrl":"https://icsourcedirect.com/jst/S12B-XASK-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/S12B-XASK-1","rawCanonicalId":null},"summary":{"shortDescription":"JST XA series, S12B-XASK-1, Board to Cable/Wire header, 12 circuits, 2.50 mm pitch, right-angle through-hole, shrouded 4-wall, locking ramp, board lock, 3 A, 250 V, tin-plated contacts, UL94 V-0.","salesMarkdown":"The S12B-XASK-1 is a 12-position, single-row header on 2.50 mm pitch from JST's XA series. ## 3 A per circuit – signal-level current ceiling The tin-plated mating surface keeps contact resistance low for intermittent mating cycles but isn't rated for the high-cycle duty of gold-plated connectors. ## Board lock and press-fit termination Insulation height of 0.299\" leaves clearance under the shroud. ## Peer comparison: 11 vs 13 positions The XA series includes S11B-XASK-1 (11 positions) and S13B-XASK-1 (13 positions) with identical pitch, current rating, locking ramp, and board lock. The only difference is circuit count — choose the one that matches your wire-count exactly; the footprint scales one position per 2.50 mm.","metaTitle":"S12B-XASK-1 JST XA Header – 12 pos, 2.5 mm, R/A","metaDescription":"JST XA series S12B-XASK-1: 12-position, 2.50 mm pitch, right-angle through-hole header with board lock and locking ramp. Rated 3 A, 250 V.","metaKeywords":null},"attributes":{"series":"XA","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"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":"$1.0500","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.05000","currency":"USD"},{"qty":10,"price":"$0.88400","currency":"USD"},{"qty":100,"price":"$0.79410","currency":"USD"},{"qty":500,"price":"$0.64976","currency":"USD"},{"qty":1000,"price":"$0.57756","currency":"USD"},{"qty":5000,"price":"$0.50536","currency":"USD"},{"qty":10000,"price":"$0.48009","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/d7b9d054706f4cb7d9e943bf7a731c95.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How many positions does S12B-XASK-1 have?","answer":"The S12B-XASK-1 has 12 positions, all loaded, in a single row on 2.50 mm pitch."},{"question":"Is S12B-XASK-1 RoHS compliant?","answer":"No — the S12B-XASK-1 is listed as RoHS non-compliant. Verify your assembly's exemption policy before committing the BOM line."},{"question":"What is the mating connector for S12B-XASK-1?","answer":"This header mates with a JST XA series crimp receptacle housing, such as the XAP-12V, using the appropriate crimp terminals. The locking ramp and 2.50 mm pitch are common across the XA series."},{"question":"Where can I buy S12B-XASK-1?","answer":"Availability and pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/S12B-XASK-1","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-1 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}}