{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"B12B-XASK-1","brand":"JST","brandSlug":"jst","productSlug":"B12B-XASK-1","canonicalUrl":"https://icsourcedirect.com/jst/B12B-XASK-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/B12B-XASK-1","rawCanonicalId":null},"summary":{"shortDescription":"JST XA series, B12B-XASK-1, Board to Cable/Wire header, 12 positions, 2.50mm pitch, shrouded 4-wall, locking ramp, press-fit and solder termination, 3A, 250V, UL94 V-0.","salesMarkdown":"## 12-position board-to-cable header for wire harness termination The B12B-XASK-1 is a JST XA series header that connects a PCB to a wire harness — it's the board-side male half of a wire-to-board interconnect. ## Pitch, current, and termination — fitting the BOM At 2.50 mm pitch, this header is a common industrial footprint that balances current capacity with board density. Each contact is rated 3 A at 250 V — enough for signal circuits and low-power loads like indicator lamps, sensors, or small relays. The termination accepts both press-fit and solder assembly. Press-fit avoids the thermal stress of reflow and allows contact rework; solder gives a stronger mechanical anchor. Either way, the through-hole mounting holds the header securely against cable strain.","metaTitle":"B12B-XASK-1 JST XA Header, 12 Pos, 2.5mm, Locking Ramp","metaDescription":"JST XA series board-to-cable header, 12 positions, 2.50mm pitch, shrouded 4-wall, locking ramp, press-fit/solder termination, 3A, 250V. Active production.","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":"-","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":"B12B-XAS","Insulation Material":"Polyamide (PA66), Nylon 6/6, Glass Filled","Number of Positions":"12","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.134\\\" (3.40mm)","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":"$0.8200","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.82000","currency":"USD"},{"qty":10,"price":"$0.71600","currency":"USD"},{"qty":100,"price":"$0.59060","currency":"USD"},{"qty":500,"price":"$0.51356","currency":"USD"},{"qty":1000,"price":"$0.42370","currency":"USD"},{"qty":5000,"price":"$0.37234","currency":"USD"},{"qty":10000,"price":"$0.34666","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/d7b9d054706f4cb7d9e943bf7a731c95.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is B12B-XASK-1 RoHS compliant?","answer":"No — this part is listed as RoHS non-compliant. Confirm your project's regulatory requirements before ordering. The lead-free peer B12B-XASK-1(LF)(SN) is functionally identical and RoHS-compliant."},{"question":"What is the current rating of B12B-XASK-1?","answer":"Rated 3 A per contact at 250 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/B12B-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/B12B-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}}