{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE27HE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE27HE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE27HE3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE27HE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® TVS, Zener type, 1.5KE27HE3/73, 1500W peak pulse, 21.8V standoff, DO-201AA axial.","salesMarkdown":"## What the ratings mean for your BOM The 1.5KE27HE3/73: The 21.8 V reverse standoff is the maximum continuous DC voltage the diode blocks without conducting leakage — a 24 V automotive battery rail at 28 V during charging sits above this, so the TVS would be in standby conduction. The 24.3 V minimum breakdown ensures the device starts clamping before the protected circuit's absolute maximum rating is reached. The 39.1 V clamp at 38.4 A limits the voltage spike seen by downstream components during an inductive load dump or alternator surge. ## Lifecycle reality — obsolete, sourced to order Vishay has marked the 1.5KE27HE3/73 as obsolete.","metaTitle":"1.5KE27HE3/73 Vishay TVS Diode, 1500W, 21.8V Standoff","metaDescription":"Vishay 1.5KE27HE3/73 automotive TVS, AEC-Q101, 1500W peak pulse, 39.1V clamp. Obsolete — sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"Automotive, AEC-Q101, TransZorb®","Package":"Tape & Box (TB)","Applications":"Automotive","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE27","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"24.3V","Voltage - Clamping (Max) @ Ipp":"39.1V","Voltage - Reverse Standoff (Typ)":"21.8V","Current - Peak Pulse (10/1000µs)":"38.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE27HE3%2F73/alternatives.json"},"ai":{"faq":[{"question":"What is the 1.5KE27HE3/73 used for?","answer":"It protects automotive 24 V DC rails from load dump and surge transients, clamping at 39.1 V."},{"question":"Where can I buy the 1.5KE27HE3/73?","answer":"Submit an RFQ for current availability and pricing — each lot is confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE27HE3-73","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/1.5KE27HE3-73 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}