{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE11HE3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE11HE3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE11HE3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE11HE3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, TransZorb® Automotive AEC-Q101 TVS, 1.5KE11HE3/54, 1500W peak pulse, 9.9V breakdown, DO-201AA axial, through hole.","salesMarkdown":"## What the 1500W rating means for your BOM The 1.5KE11HE3/54: That 1500W rating tells you it can absorb a short, high-energy transient — like a load dump or inductive kickback — without failing short, which is what makes it a go-to for clamping spikes on 12V automotive power rails. The 92.6A peak pulse current (Ipp) at that clamp voltage means it handles a hefty surge — think alternator field dump or a relay coil kick — before the silicon gives out. ## AEC-Q101 and the TransZorb series This part carries AEC-Q101 qualification, meaning it's been through the automotive-grade stress tests: high-temperature reverse bias, temperature cycling, and ESD robustness. The TransZorb series is Vishay's branded TVS line, known for tight clamping and fast response — the 'HE3' suffix flags the automotive flow. Lifecycle status is obsolete per the manufacturer. That means Vishay no longer produces it, and the last-time-buy window has closed. For new designs or BOM fills, sourcing goes through independent distribution — quantities are confirmed at RFQ, and no direct factory replacement is listed. Housed in a DO-201AA (DO-27) axial-lead package, it's through-hole mount — hand-solderable on a perfboard or production wave-solder line. No power line protection (it's a unidirectional TVS, not a bidirectional or steering diode), so it's meant for DC rails, not AC mains.","metaTitle":"1.5KE11HE3/54 Vishay TVS Diode, 1500W, AEC-Q101, Obsolete","metaDescription":"Vishay 1.5KE11HE3/54 TransZorb TVS, 1500W peak pulse, 9.9V breakdown, AEC-Q101. Obsolete — sourced to order against RFQ via independent distribution.","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 & Reel (TR)","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":"1.5KE11","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"9.9V","Voltage - Clamping (Max) @ Ipp":"16.2V","Voltage - Reverse Standoff (Typ)":"8.92V","Current - Peak Pulse (10/1000µs)":"92.6A"}},"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 1.5KE11HE3/54?","answer":"No official successor or pin-compatible cross-reference is listed by Vishay for this specific order code. The 1.5KE series includes many voltage variants in the same DO-201AA package, but a direct functional replacement would need to match the 9.9V breakdown and 1500W rating — best confirmed against your BOM's clamping requirement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE11HE3-54","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/1.5KE11HE3-54 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}}