{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE33A/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE33A-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33A-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE33A%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® Zener TVS diode, 1.5KE33A/54, 1500W peak pulse power, 28.2V reverse standoff, 45.7V clamping, DO-201AA axial, Tape & Reel.","salesMarkdown":"## What the ratings mean for your circuit The 1.5KE33A/54: The reverse standoff voltage is 28.2 V typical — the diode draws negligible leakage below this level, making it suitable for 24 V rails where the nominal bus stays under 28 V. Breakdown occurs at 31.4 V minimum (the avalanche threshold), and the device handles 32.8 A peak pulse current (Ipp) at the 10/1000 µs test condition — this current rating tells you the surge energy the diode can absorb without failing short. Supplied in a DO-201AA (DO-27) axial-lead package, through-hole mount — the leads are tin-plated copper and the body is molded epoxy with a 1.5KE marking.","metaTitle":"1.5KE33A/54 Vishay TransZorb TVS, 1500W, 28.2V Standoff","metaDescription":"Obsolete 1.5KE33A/54 Vishay TransZorb Zener TVS diode, 1500W peak pulse, 28.2V reverse standoff, DO-201AA. 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":"TransZorb®","Package":"Tape & Reel (TR)","Applications":"General Purpose","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":"1.5KE33","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE33A%2F54/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1.5KE33A/54?","answer":"A functionally equivalent TVS with the same 1500 W rating, 28.2 V standoff, and DO-201AA package would need to be selected from the broader TransZorb family or a competing brand — confirm the clamping voltage and breakdown tolerance against your circuit's surge requirement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33A-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/1.5KE33A-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}}