{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE33CA/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE33CA-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33CA-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE33CA%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor TransZorb® TVS diode, bidirectional, 1.5KE33CA/54, 1500W peak pulse power, 28.2V reverse standoff, 45.7V clamping, DO-201AA axial through-hole.","salesMarkdown":"## Clamping profile and circuit fit The 1.5KE33CA/54: The 28.2 V reverse standoff voltage means it sits across a 24 V rail or a 28 V signal line without conducting in normal operation — the TVS only activates when the line exceeds the 31.4 V minimum breakdown threshold. Single bidirectional channel — the symmetrical breakdown characteristic protects both polarities, making it suitable for AC signal lines or bipolar DC rails where the transient can swing either direction. Housed in the DO-201AA (DO-27) axial-lead through-hole package, the 1.5KE33CA/54 uses a legacy footprint that requires a board spin if migrating to a surface-mount alternative. The junction temperature range spans -55°C to 175°C — military/industrial grade that covers avionics, downhole, and outdoor telecom enclosures. No power line protection rating — this device is intended for signal and data line transient suppression, not AC mains or high-energy power entry.","metaTitle":"Vishay 1.5KE33CA/54 TransZorb TVS, 1500W, 28.2V Standoff","metaDescription":"Obsolete Vishay 1.5KE33CA/54 bidirectional TVS diode, 1500W peak pulse, 28.2V standoff, DO-201AA axial.","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","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1.5KE33CA/54 used for?","answer":"It is a 1500 W bidirectional TransZorb® TVS diode used for transient voltage suppression on signal lines and DC rails with a 28.2 V nominal operating voltage. The 45.7 V clamping limit protects downstream semiconductors from voltage spikes up to 32.8 A peak pulse current."},{"question":"What package does the 1.5KE33CA/54 come in?","answer":"The DO-201AA (DO-27) axial-lead through-hole package. This is a legacy through-hole footprint — any replacement requiring a surface-mount package will need a board layout change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33CA-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/1.5KE33CA-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}}