{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE400A-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE400A-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE400A-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE400A-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Zener type, 1.5KE400A-/73, 1500W peak pulse, 342V standoff, 548V clamp, DO-201AA axial, through hole.","salesMarkdown":"## TVS diode with 1.5 kW pulse rating and 342 V standoff The 1.5KE400A-E3/73: Its 342 V reverse standoff voltage protects 380 V nominal rails, clamping transients at 548 V maximum while conducting 2.7 A peak pulse current. ## What the clamping voltage means for rail protection A 548 V clamp at 2.7 A Ipp means the TVS limits overvoltage on a 342 V DC bus to under 550 V during a surge — critical for downstream MOSFETs and DC-DC converters with 600 V abs-max ratings. ## Package and mounting for through-hole assembly Supplied in a DO-201AA (DO-27) axial-lead package, through-hole mount — the lead bend and body length match standard TVS footprints for 1.5 kW class parts. The Tape & Box (TB) packaging suits hand-insertion or vibratory bowl feed; the axial leads require no special soldering profile beyond typical wave or hand-solder processes.","metaTitle":"1.5KE400A-E3/73 Vishay TransZorb TVS, 1.5kW, 548V Clamp","metaDescription":"Vishay 1.5KE400A-E3/73 TransZorb TVS diode, 1500W peak pulse, 342V standoff, 548V clamp. Active production, sourced to order. Request RFQ.","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":"1.5KE400","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"380V","Voltage - Clamping (Max) @ Ipp":"548V","Voltage - Reverse Standoff (Typ)":"342V","Current - Peak Pulse (10/1000µs)":"2.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5136","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 1.5KE400A-/73?","answer":"The 1.5KE400A (without the -/73 suffix) shares the same die and package but may differ in plating or packaging code — verify the BOM position before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE400A-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/1.5KE400A-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}}