{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5KP11CA-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"5KP11CA-B","canonicalUrl":"https://icboms.com/littelfuse-inc/5KP11CA-B","factsUrl":"https://icboms.com/api/mcp/products/5KP11CA-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 5KP Zener bidirectional TVS diode, 5KP11CA-B, 5000W peak pulse, 280.2A peak pulse current, 18.2V clamping, 11V standoff, P600 axial package.","salesMarkdown":"The 5KP11CA-B: At 280.2A peak pulse current the clamping voltage sits at 18.2V, which is the voltage across the device when it is actively conducting the full rated transient current into its clamp state. For the circuit designer, the peak pulse rating and the clamping voltage together define how much overvoltage the downstream load actually sees when a surge hits. ## Three voltages — standoff, breakdown, and clamping The reverse standoff of 11V is the working voltage the diode blocks in normal operation. The minimum breakdown of 12.2V is where it begins to conduct; above that threshold the device moves into avalanche and the clamp circuit takes over. The 18.2V maximum clamping voltage is the let-through voltage at full peak current — a supply rail protected by this TVS must tolerate 18.2V briefly during a fault, not 11V continuously. This simplifies the protection scheme on AC-coupled lines or on circuits where the common-mode voltage can swing both ways. ## Wide temperature grade and through-hole form factor The P600 axial body mounts through-hole on the PCB; the lead bend radius and mounting distance from the board surface are specified in the Littelfuse datasheet for the P600 package to maintain the thermal derating curve under surge conditions. General-purpose application rating means it is qualified for transient suppression across industrial, communications, and consumer equipment — anywhere inductive loads, motor switching, or lightning-entry points create transient risk. The absence of a power-line protection flag indicates this is not listed for direct AC mains service; it suits secondary protection on DC rails and signal lines downstream of an input filter. Listed Active by Littelfuse Inc. — current-production with standard availability through authorized distribution. The base product family is 5KP1; the CA bidirectional variant and the standalone unidirectional 5KP11A share the same 5KP series footprint, so cross-references within the series apply when the bidirectional function is not required by the design.","metaTitle":"Littelfuse 5KP11CA-B, 5000W TVS Diode 18.2V Clamp","metaDescription":"Littelfuse 5KP11CA-B bidirectional Zener TVS diode, 5000W peak pulse, 18.2V clamping, 11V standoff. Active. 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":"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":"5KP1","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"P600","Voltage - Breakdown (Min)":"12.2V","Voltage - Clamping (Max) @ Ipp":"18.2V","Voltage - Reverse Standoff (Typ)":"11V","Current - Peak Pulse (10/1000µs)":"280.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0268","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9a3254fce889105c1fc5d20fb44bb051.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is there a pin-compatible alternative in the same series?","answer":"The unidirectional 5KP11A shares the same P600 package, standoff voltage, and peak pulse rating but handles transients of a single polarity only. The CA bidirectional suffix is the functional differentiator — if the design requires one-way clamping only, the A variant is a drop-in substitute on the same PCB footprint."},{"question":"What does the P600 package mean for board assembly?","answer":"The P600 is a through-hole axial package — the leads are bent and inserted into plated-through holes and wave-soldered or hand-soldered. The body sits above the board surface, which affects the thermal path during a surge event; the datasheet derating curve is referenced to the lead length and mounting conditions specified for this package type."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/5KP11CA-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/5KP11CA-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}}