{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5KP250A-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"5KP250A-B","canonicalUrl":"https://icboms.com/littelfuse-inc/5KP250A-B","factsUrl":"https://icboms.com/api/mcp/products/5KP250A-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 5KP Zener TVS diode, 5KP250A-B, 250V standoff, 5000W peak pulse (10/1000µs), 425V clamping max, 12A peak pulse, P600 axial through-hole.","salesMarkdown":"The 5KP250A-B: At that pulse the clamping ceiling sits at 425 V maximum, and the part conducts 12 A through the surge. The −55 °C to 175 °C junction temperature range puts this squarely in equipment that sees hot ambient or extended dissipation stress, like outdoor cabinet power or multi-cell battery strings that run above room temperature. ## Standoff, breakdown, clamping — the three voltages Reverse standoff is the voltage the TVS sees idling — 250 V typ means it sits off until a transient pushes it into avalanche. Breakdown minimum of 277 V is where it begins conducting, and the 425 V clamping maximum is the peak voltage the protected load sees at the rated 12 A peak pulse current. For a 250 V rail, a 277 V minimum breakdown gives roughly 27 V of headroom above standoff before the device snaps into conduction — enough that normal line transients below that threshold do not cause unnecessary wear on the clamping element. ## P600 axial package and through-hole assembly The P600 axial body mounts in a hole pattern compatible with standard TVS diode clips and standoff lead-forming jigs. The through-hole leadform handles board flex and thermal cycling better than a SMD part in high-vibration environments — the leads absorb mismatch between the PCB and the package rather than loading a solder joint. Bulk packaging aligns with production runs that use loose-part feeding or magazine strip loading rather than tape-and-reel.","metaTitle":"Littelfuse 5KP250A-B TVS Diode, 250V Standoff, 5kW Peak","metaDescription":"Littelfuse 5KP250A-B Zener TVS diode, 250V standoff, 5000W peak pulse, 425V clamping, P600 axial. Active — quoted to order on RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"5KP","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"P600, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"5000W (5kW)","Base Product Number":"5KP2","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"P600","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"277V","Voltage - Clamping (Max) @ Ipp":"425V","Voltage - Reverse Standoff (Typ)":"250V","Current - Peak Pulse (10/1000µs)":"12A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.6435","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9a3254fce889105c1fc5d20fb44bb051.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I source 5KP250A-B and get a current quote?","answer":"If your BOM line needs a traceable authorized-source option or spot-market flexibility, specify the requirement in the request so the sourcing desk can match the right channel to the quantity and date code you need."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/5KP250A-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/5KP250A-B when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}