{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5KP120A","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"5KP120A","canonicalUrl":"https://icboms.com/littelfuse-inc/5KP120A","factsUrl":"https://icboms.com/api/mcp/products/5KP120A","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 5KP Zener TVS diode, 120V reverse standoff, 5kW peak pulse (10/1000 µs), 193V max clamping, P600 axial, -55°C to 175°C junction.","salesMarkdown":"## What the 5KP120A is and where the ratings land The 5KP120A is a unidirectional Zener-based transient voltage suppressor in Littelfuse's 5KP series — a family of 5 kW peak-pulse axial diodes used to clamp voltage spikes on sensitive rails before they reach downstream circuitry. Reverse standoff is 120 V typ, meaning the part sits idle below that rail voltage and begins responding once the transient pushes the line above breakdown. For a 120 V rail, the 193 V clamping ceiling gives roughly 73 V of headroom at peak pulse — acceptable for most downstream silicon abs-max ratings, but the designer should verify the downstream absolute-maximum input can survive a 193 V spike of the defined pulse width without degradation. ## Temperature grade and package for design-in Through-hole P600 mounting means the lead diameter and pad footprint are fixed by the package standard — no board-level fan-out complexity, but the thermal pad land pattern must be sized to keep the junction below 175°C under worst-case continuous clamping conditions. ## Where the 5KP series fits and what this part is not Listed as General Purpose — the 5KP series covers industrial control, instrumentation, and power-supply protection on non-power-line circuits. Power Line Protection is flagged No, so this part is not the right fit for direct AC mains transient suppression.","metaTitle":"Littelfuse 5KP120A, 120V Zener TVS, 5kW Peak Pulse","metaDescription":"Littelfuse 5KP120A unidirectional Zener TVS diode, 120V standoff, 5kW peak pulse, P600 axial. Active production — quoted to order.","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":"Tape & Reel (TR) Cut Tape (CT)","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":"5KP1","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"P600","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"133V","Voltage - Clamping (Max) @ Ipp":"193V","Voltage - Reverse Standoff (Typ)":"120V","Current - Peak Pulse (10/1000µs)":"26.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9a3254fce889105c1fc5d20fb44bb051.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What series and type is the 5KP120A?","answer":"The 5KP120A is a unidirectional Zener TVS diode in Littelfuse's 5KP series — a 5 kW peak-pulse axial family for general-purpose transient voltage clamping on non-power-line circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/5KP120A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/5KP120A 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}}