{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE33CAHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE33CAHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33CAHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE33CAHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Automotive Grade, AEC-Q101, 1500W Peak Pulse, 28.2V Standoff, Bidirectional, DO-201AA Axial, Bulk.","salesMarkdown":"## Obsolete TVS — last-time-buy sourcing Vishay has marked the 1.5KE33CAHE3/51 as Obsolete. ## Clamping performance and fit At the clamping voltage of 45.7 V, the TVS handles a peak pulse current of 32.8 A. The reverse standoff voltage is 28.2 V, so the part starts conducting above that rail level and clamps the transient before it reaches the protected circuit's absolute-maximum rating. Breakdown voltage is specified at 31.4 V minimum, giving a 3.2 V guard band between the standoff rail and the avalanche threshold. Operating junction temperature range is -55°C to 175°C, covering the full automotive temperature envelope. The DO-201AA axial-lead package is through-hole mounted — the lead bend and body length are standard for this power class, so existing PCB footprints for a 1.5KE-series device accept it without layout changes. ## Sourcing the 1.5KE33CAHE3/51 Because Vishay has discontinued this order code, new-stock procurement goes through independent surplus and broker channels. The base product number is 1.5KE33; the full suffix includes the automotive-grade AEC-Q101 designation and the bulk packaging code. When sourcing, match the full order code — a non-automotive 1.5KE33CA lacks the AEC-Q101 screening and may not meet the same reliability requirements.","metaTitle":"1.5KE33CAHE3/51 Vishay TVS, 1500W, 28.2V Standoff","metaDescription":"Vishay 1.5KE33CAHE3/51 TransZorb TVS, 1500W peak pulse, 28.2V standoff, DO-201AA. AEC-Q101. Obsolete — sourced to order. Request 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","Grade":"Automotive","Series":"TransZorb®","Packaging":"Bulk","Part Status":"Obsolete","Applications":"-","Mounting Type":"Through Hole","Qualification":"AEC-Q101","Package / Case":"DO-201AA, DO-27, Axial","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE33","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"31.4V","Voltage - Clamping (Max) @ Ipp":"45.7V","Voltage - Reverse Standoff (Typ)":"28.2V","Current - Peak Pulse (10/1000µs)":"32.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b6470e7c23af28f3f376ae45aee8e9ef.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1.5KE33CAHE3/51 used for?","answer":"It clamps transients to 45.7 V and handles 32.8 A peak pulse current. Typical use is protecting automotive electronics — ECU power inputs, sensor lines, and actuator drivers — from load-dump and inductive-kick transients."},{"question":"What compliance documentation does Vishay provide for this part?","answer":"The 1.5KE33CAHE3/51 carries AEC-Q101 automotive qualification, which includes the PPAP documentation package. The part is also RoHS-compliant per Vishay's standard TransZorb series. Specific certificates and the compliance declaration are available from the manufacturer's documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33CAHE3-51","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/1.5KE33CAHE3-51 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}}