{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE12HE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE12HE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE12HE3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE12HE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, TransZorb® series, Automotive AEC-Q101 TVS Zener, 1.5KE12HE3/73, 1500W peak pulse, 9.72V reverse standoff, DO-201AA axial, Through Hole.","salesMarkdown":"## 1500W axial TVS for automotive transient protection — now obsolete The 1.5KE12HE3/73: It comes in the DO-201AA (DO-27) axial-lead package for through-hole mounting. Qualified to AEC-Q101, it was designed for automotive 12V system transient suppression — clamping a 17.3V ceiling keeps the downstream electronics safe from load-dump and inductive spikes on the battery line. ## Lifecycle reality — obsolete, no direct successor on record Vishay has marked the 1.5KE12HE3/73 as obsolete. For a BOM that still calls out this exact part, the procurement path is surplus or broker inventory. A board-level replacement would require a functionally equivalent 1500W TVS in the same DO-201AA footprint with matching breakdown and clamping voltages — a parametric search against the 10.8V min breakdown and 17.3V max clamp is the starting point. ## Clamping parameters and pulse capability No power line protection (bidirectional) — this is a unidirectional device, so it clamps only positive transients relative to ground. For negative-going spikes, the body diode forward-conducts; the circuit must handle that current path.","metaTitle":"1.5KE12HE3/73 Vishay TVS, 1500W, 9.72V Standoff, Obsolete","metaDescription":"Vishay 1.5KE12HE3/73 TransZorb TVS, 1500W peak pulse, 9.72V reverse standoff, AEC-Q101. Obsolete — sourced to order against RFQ. Quoted on request.","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":"1.5KE12","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"10.8V","Voltage - Clamping (Max) @ Ipp":"17.3V","Voltage - Reverse Standoff (Typ)":"9.72V","Current - Peak Pulse (10/1000µs)":"86.7A"}},"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 is the 1.5KE12HE3/73's type and series?","answer":"The series designation is Automotive, AEC-Q101, TransZorb."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE12HE3-73","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/1.5KE12HE3-73 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}}