{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE30HE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE30HE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE30HE3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE30HE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® series, Zener TVS diode, 1.5KE30HE3/73, 1500W peak pulse power, 24.3V standoff, 43.5V clamping, DO-201AA axial through-hole.","salesMarkdown":"## Obsolete but spec'd — what the ratings mean for a replacement search The 1.5KE30HE3/73: It is officially listed as obsolete, meaning new designs should not specify this exact order code — but for existing BOM lines in sustainment, the parametric profile is what matters for cross-referencing. The reverse standoff voltage is 24.3 V, and breakdown occurs at a minimum of 27 V — so it protects a 24 V nominal rail against transients that exceed the normal operating envelope. ## Automotive temperature grade and deployment context The AEC-Q101 qualification means it passed the stress tests (H3TRB, temperature cycling, ESD) that automotive Tier-1s require for PPAP submission. The DO-201AA axial package is a through-hole format — rework-friendly, but the lead spacing and body diameter differ from surface-mount alternatives. Any replacement must match the board's hole pattern and the 1.5KE footprint. ## Sourcing an obsolete automotive-grade TVS With the 1.5KE30HE3/73 marked obsolete, the primary sourcing channel is independent surplus and broker inventory. No official successor order code is recorded in the lifecycle data — the replacement path is a parametric match within the same 1.5KE family or a functionally equivalent AEC-Q101 TVS from another manufacturer. Available to quote against an RFQ through our independent distribution network. Lot traceability and date code confirmation are provided at quote time; the AEC-Q101 marking on the body is a first-line authenticity check.","metaTitle":"1.5KE30HE3/73 Vishay Zener TVS, 1.5kW, DO-201AA","metaDescription":"Vishay 1.5KE30HE3/73 Zener TVS diode, 1500W peak pulse, 24.3V standoff, AEC-Q101 automotive grade. Obsolete — sourced to order against RFQ. Clamping at 43.5V.","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":"1.5KE30","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"27V","Voltage - Clamping (Max) @ Ipp":"43.5V","Voltage - Reverse Standoff (Typ)":"24.3V","Current - Peak Pulse (10/1000µs)":"34.5A"}},"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 closest pin-compatible alternative to 1.5KE30HE3/73?","answer":"No official successor is recorded. The closest functional match is another 1.5KE family TVS with the same standoff voltage (24.3 V) and DO-201AA package, but without the AEC-Q101 automotive grade. For automotive sustainment, a cross-reference to a current AEC-Q101 qualified TVS in the same package is recommended — the clamping voltage and peak pulse current must match the original design margin."},{"question":"What compliance documentation does Vishay provide for 1.5KE30HE3/73?","answer":"As an AEC-Q101 qualified device, the part carries automotive-grade reliability documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE30HE3-73","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/1.5KE30HE3-73 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}}