{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE33CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE33CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE33CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Zener type, 1.5KE33CA-/51, 1500W peak pulse, 28.2V reverse standoff, bidirectional, DO-201AA axial, Bulk.","salesMarkdown":"## Last-buy window and sourcing posture The 1.5KE33CA-E3/51: The 1.5KE33CA-/51 is on a Last Buy lifecycle from Vishay — the official production window is closing, so this part is sourced through surplus and authorized end-of-life distribution channels, not fresh factory stock. No pin-compatible direct successor is listed on the record, so the existing board design relies on this exact order code or a parametric substitute requiring board-level validation. ## Transient protection ratings and what they mean The 28.2 V reverse standoff voltage means the diode draws negligible leakage below that DC level; it starts conducting at the minimum breakdown of 31.4 V. Bidirectional, single-channel construction protects a single signal or power rail against both positive and negative transients. ## Package and board integration Through-hole axial package (DO-201AA / DO-27) with the 1.5KE supplier device code. The axial leads mount into plated through-holes on the PCB; the body is typically installed upright or laid flat depending on board clearance. Bulk packaging means loose tubes or bags — no tape-and-reel for automated insertion. General-purpose application category — no power-line protection rating (the device lacks the fast turn-on for AC mains transients), so it is best suited for DC rail clamping, signal-line ESD, and inductive-load suppression in control and power electronics.","metaTitle":"1.5KE33CA-E3/51 Vishay TVS, 1500W, 28.2V Standoff, DO-201AA","metaDescription":"Vishay 1.5KE33CA-E3/51 TransZorb® TVS, 1500W peak pulse, 28.2V reverse standoff, bidirectional, DO-201AA axial. Last Buy status — sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Last Time Buy","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":"$0.8847","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does 1.5KE33CA-/51 come in?","answer":"Through-hole axial DO-201AA / DO-27 package, supplied in Bulk (loose tubes or bags)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33CA-E3-51","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/1.5KE33CA-E3-51 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}}