{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE30A-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE30A-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE30A-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE30A-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Type Zener, 1500W (1.5kW), 1.5KE30A-/73, DO-201AA Axial, Through Hole, Unidirectional.","salesMarkdown":"## What the 1500W peak pulse rating means on a real board The 1.5KE30A-E3/73: The 1.5KE30A-/73 is a 1500W (1.5kW) unidirectional TransZorb® TVS diode in a DO-201AA axial-leaded package — the classic through-hole form factor that survives a soldering iron and can be swapped on site without a hot-air station. Reverse standoff voltage is 25.6V, so it sits across a 24V nominal rail and stays out of conduction until the transient pushes above the 28.5V minimum breakdown threshold — no leakage penalty at the operating voltage. ## Where it fits and where it does not Power line protection is marked 'No' — this is not a primary AC mains suppressor. It belongs on DC power rails, signal lines, or low-voltage bus bars where the 25.6V standoff matches a 24V bus. The axial DO-201AA body is polarity-marked with a cathode band — orientation is obvious enough to get right once, even without a bench. Snip the leads, insert, solder. Lifecycle status is Active — Vishay still manufactures this part. Available in Cut Tape and Tape & Box packaging — the TB option suits hand-insertion or selective-solder lines where reel-fed is not needed.","metaTitle":"Vishay 1.5KE30A-E3/73 TVS Diode, 1500W, 28.5V Breakdown","metaDescription":"Vishay 1.5KE30A-E3/73 TransZorb® TVS, 1500W peak pulse, 28.5V breakdown min, 41.4V clamp, DO-201AA axial. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Cut Tape (CT); Tape & Box (TB)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE30","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"28.5V","Voltage - Clamping (Max) @ Ipp":"41.4V","Voltage - Reverse Standoff (Typ)":"25.6V","Current - Peak Pulse (10/1000µs)":"36.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use this TVS on a 24V DC power rail?","answer":"Yes — the reverse standoff voltage is 25.6V, so it sits across a 24V nominal rail without conducting. It clamps transients above the 28.5V breakdown threshold."},{"question":"What package does the 1.5KE30A-/73 come in?","answer":"DO-201AA / DO-27 axial-leaded through-hole package. The cathode band marks polarity for one-shot correct insertion."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE30A-E3-73","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/1.5KE30A-E3-73 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}