{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE47HE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE47HE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE47HE3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE47HE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, Automotive AEC-Q101 TransZorb® TVS, 1.5KE47HE3/73, 1500W peak pulse, 38.1V reverse standoff, 67.8V clamping, DO-201AA axial.","salesMarkdown":"## What the 1500W rating means for your circuit The 1.5KE47HE3/73: That 1500W figure is the peak power the device can absorb during a transient — it clamps a 22.1A surge to 67.8V maximum, protecting downstream electronics from voltage spikes that would otherwise exceed the 38.1V reverse standoff level. ## Automotive-grade transient protection The breakdown voltage starts at 42.3V minimum, with the clamping ceiling at 67.8V. For a 12V or 24V automotive rail, the 38.1V standoff gives headroom above the nominal bus voltage while the clamping voltage stays below the abs-max rating of typical downstream regulators and ECUs. Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE47HE3/73 is a through-hole part. The axial leads suit point-to-point wiring or through-hole PCB mounting — the body diameter and lead spacing are standard for this power class, so the pad layout follows the DO-201AA footprint common across the 1.5KE series. ## Sourcing an obsolete automotive TVS Vishay lists the 1.5KE47HE3/73 as obsolete.","metaTitle":"1.5KE47HE3/73 Vishay TVS, 1500W, 38.1V Standoff, DO-201AA","metaDescription":"Obsolete Vishay 1.5KE47HE3/73 automotive TVS diode, 1500W peak pulse, 38.1V reverse standoff, AEC-Q101. Sourced to order against RFQ.","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":"1.5KE47","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"42.3V","Voltage - Clamping (Max) @ Ipp":"67.8V","Voltage - Reverse Standoff (Typ)":"38.1V","Current - Peak Pulse (10/1000µs)":"22.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the key clamping specs for the 1.5KE47HE3/73?","answer":"The reverse standoff voltage is 38.1V typical, breakdown voltage starts at 42.3V minimum, and the maximum clamping voltage at the 22.1A peak pulse current (10/1000µs) is 67.8V. Peak pulse power is 1500W."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE47HE3-73","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/1.5KE47HE3-73 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}}