{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE39A-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE39A-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39A-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE39A-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® series, TVS Zener, unidirectional, 1500W peak pulse power, 33.3V reverse standoff, DO-201AA axial, through hole, Tape & Box.","salesMarkdown":"The 1.5KE39A-E3/73: The 1.5KE39A-/73 is a 1500 W unidirectional TransZorb TVS from Vishay, clamping transients on a 33.3 V nominal rail. The 53.9 V maximum clamping voltage at 27.8 A peak pulse current (10/1000 µs waveform) defines the voltage the downstream circuitry must survive — a 40 V-rated MOSFET on that rail has no margin past clamp. The 37.1 V minimum breakdown voltage means the device starts conducting before the rail exceeds the 33.3 V standoff, catching fast overvoltage events without nuisance triggering on normal ripple. DO-201AA (DO-27) axial leaded package, through-hole mount. The 1.5KE footprint is standard across the series — the same PCB land pattern accepts any 1.5KE breakdown voltage variant, so a single board layout serves the full 1.5KE family. ## Sourcing posture The Tape & Box packaging (73 per box) suits both prototyping and production runs.","metaTitle":"Vishay 1.5KE39A-E3/73 TransZorb TVS, 1500W, 33.3V Standoff","metaDescription":"Vishay 1.5KE39A-E3/73 TransZorb 1500W unidirectional TVS, 33.3V reverse standoff, 53.9V clamp. Active production, DO-201AA axial. Sourced 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 & Box (TB)","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":"1.5KE39","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"37.1V","Voltage - Clamping (Max) @ Ipp":"53.9V","Voltage - Reverse Standoff (Typ)":"33.3V","Current - Peak Pulse (10/1000µs)":"27.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3465","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5KE39A-/73?","answer":"Any 1.5KE-series TVS in the same DO-201AA package with the same 1.5KE footprint is pin-compatible — the land pattern is identical across the family. For the same 33.3 V standoff, the 1.5KE39A in a different packaging option (e.g., 1.5KE39A-/54) shares the same die and electrical specs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39A-E3-73","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/1.5KE39A-E3-73 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}}