{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE9.1-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE9.1-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE9.1-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE9.1-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor TransZorb® Zener TVS, 1.5KE9.1-/54, 1500W peak pulse, 7.37V standoff, 13.8V clamp, 109A, DO-201AA axial, through hole.","salesMarkdown":"## TransZorb 1500W Zener TVS — 7.37V standoff, axial DO-201AA The 1.5KE9.1-E3/54: The DO-201AA axial-lead package (DO-27 equivalent) mounts through-hole on the PCB — the lead bend absorbs board flex, and the body handles repeated soldering thermal cycles without cracking the glass passivation. ## Sourcing — obsolete, last-time-buy channel No official successor order code is recorded from Vishay. For a pin-compatible replacement, a parametric search within the 1.5KE series (same package, same 1500W rating, similar breakdown voltage) is the typical path — confirm the standoff and clamp voltages match the protection window. No stock-holding claim; availability and current pricing are established at quote time. ## Temperature range and pulse capability The 109A peak pulse current at the 10/1000µs waveform is the maximum surge the device can clamp before the junction temperature exceeds the rated limit — for shorter pulses (8/20µs) the peak current capability is higher, but the datasheet curve must be consulted for the exact multiplier.","metaTitle":"1.5KE9.1-E3/54 Vishay TransZorb, 1500W, 7.37V standoff","metaDescription":"Obsolete Vishay 1.5KE9.1-E3/54 Zener TVS, 1500W peak pulse, 7.37V standoff, DO-201AA. Sourced to order against RFQ — availability confirmed at quote.","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":"1.5KE9.1","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"8.19V","Voltage - Clamping (Max) @ Ipp":"13.8V","Voltage - Reverse Standoff (Typ)":"7.37V","Current - Peak Pulse (10/1000µs)":"109A"}},"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 closest pin-compatible alternative to 1.5KE9.1-/54?","answer":"No official successor is recorded. The best fit is another 1500W TransZorb in the same DO-201AA package with a similar breakdown voltage range (8.19V min) and standoff voltage (7.37V) — verify the clamping voltage matches your protection window."},{"question":"What is the peak pulse power rating of 1.5KE9.1-/54?","answer":"1500W (1.5kW) at the 10/1000µs waveform, measured at the clamp voltage of 13.8V and peak pulse current of 109A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE9.1-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/1.5KE9.1-E3-54 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}