{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE18A-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE18A-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18A-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE18A-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Type Zener, 1.5KE18A-/54, 1500W peak pulse, 15.3V reverse standoff, 59.5A Ipp, DO-201AA axial, Tape & Reel.","salesMarkdown":"The 1.5KE18A-E3/54: That 1500 W rating tells you the device can absorb a single transient up to that energy without failing — but the real clamp current is 59.5 A at 25.2 V, so the protection level is set by the clamp voltage, not the wattage alone. ## Standoff, breakdown, and clamp — the protection window Reverse standoff is 15.3 V — the rail voltage this diode sits across without conducting. Breakdown starts at 17.1 V minimum, and clamping maxes at 25.2 V when the full 59.5 A pulse flows. That 10 V window from standoff to clamp means a 12 V or 15 V rail gets clamped well before the downstream IC's abs-max rating, but a 24 V rail is already above the standoff and would leak. For a board that sees engine-bay heat or cold-soak, the 175°C max gives headroom. ## Through-hole axial — board-fit and sourcing DO-201AA / DO-27 axial package, through-hole mount. The 1.5KE footprint is standard across the series — same hole pattern as the 1.5KE6.8A through 1.5KE440A variants, so a single PCB layout covers the whole voltage range. Tape & Reel or Cut Tape packaging available.","metaTitle":"Vishay 1.5KE18A-E3/54 TVS Diode, 1500W, 15.3V Standoff","metaDescription":"Vishay 1.5KE18A-E3/54 TransZorb TVS, 1500W peak pulse, 15.3V reverse standoff, 59.5A Ipp. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE18","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"17.1V","Voltage - Clamping (Max) @ Ipp":"25.2V","Voltage - Reverse Standoff (Typ)":"15.3V","Current - Peak Pulse (10/1000µs)":"59.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3246","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for 1.5KE18A-/54?","answer":"Submit an RFQ against your BOM quantity. Pricing and lead time are confirmed at quote time through our multi-source supply chain. No stock-holding claim — availability verified per order."},{"question":"What is the closest pin-compatible alternative to 1.5KE18A-/54 in this Circuit Protection family?","answer":"The entire 1.5KE series shares the same DO-201AA footprint and 1500 W rating. The 1.5KE18A (without the -/54 suffix) is functionally identical — same breakdown and clamp voltages. The -/54 suffix indicates Vishay's green/RoHS-compliant lead finish and tape-and-reel packaging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18A-E3-54","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18A-E3-54 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}}