{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE30A-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE30A-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE30A-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE30A-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor TransZorb® TVS diode, type Zener, 1.5KE30A-/54, 1500W peak pulse, 25.6V reverse standoff, 41.4V clamp, unidirectional, DO-201AA axial, through hole.","salesMarkdown":"## 1500 W peak pulse — what it means for rail protection The 1.5KE30A-E3/54: The 25.6 V reverse standoff sets the maximum DC rail voltage it can protect — a 24 V nominal bus with 10 % tolerance sits safely below this threshold. Clamping at 41.4 V limits the surge voltage seen by downstream components. Breakdown voltage starts at 28.5 V min, ensuring the device triggers before the clamped level is reached. The 36.2 A peak pulse current tells you how much surge current the diode can sink during that 10/1000 µs event — useful for calculating the energy in a given transient scenario. ## Unidirectional Zener TVS — DO-201AA axial package This is a unidirectional Zener-type TVS, meaning it clamps only one polarity — the cathode band marks the protected side. For AC lines or bipolar transients, a bidirectional variant would be required. The DO-201AA / DO-27 axial package is a through-hole footprint common in power supplies, industrial controls, and telecom line cards. It mounts into a standard 0.040-inch hole pattern and is often used on terminal strips or PCB edge protection zones. The wide junction temperature range means derating is minimal across typical ambient conditions — the 1500 W rating holds at 25°C and derates linearly above that.","metaTitle":"Vishay 1.5KE30A-E3/54 TVS Diode, 1500W, 25.6V Standoff","metaDescription":"Active Vishay TransZorb® TVS diode, 1500W peak pulse, 25.6V reverse standoff, 41.4V clamp. DO-201AA axial. Sourced to order. Request a quote.","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":"Tape & Reel (TR); Cut Tape (CT)","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":"$0.3246","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the 1.5KE30A-/54 or check current availability?","answer":"The 1.5KE30A-/54 is an active Vishay part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE30A-E3-54","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/1.5KE30A-E3-54 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}}