{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE540-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE540-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE540-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE540-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® Zener TVS diode, 1.5KE540-/54, 1500W peak pulse, 437V reverse standoff, 772V clamp, DO-201AA axial, through hole.","salesMarkdown":"## What this TransZorb® TVS diode does on the board The 1.5KE540-E3/54: The single unidirectional channel handles 1.94A of peak pulse current in the forward direction — sized for a 1500W surge event, not continuous conduction. ## Obsolete — what that means for sourcing For a BOM line that calls out this exact Vishay part number, the supply route is through independent distribution holding end-of-life inventory. Because the TransZorb® series covers a wide voltage range, a parametric substitute with the same 1500W DO-201AA footprint may exist at a different breakdown voltage, but no pin-compatible direct replacement under this base number is published by Vishay. Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE540-/54 mounts through hole on a PCB or terminal block — the axial leads allow point-to-point wiring or soldering into plated through-holes on a standard 0.100-inch pitch layout. The junction temperature range spans -55°C to +175°C, covering industrial and telecom outdoor cabinet environments where ambient heat and self-heating from the surge event must stay within the silicon's thermal budget.","metaTitle":"Vishay 1.5KE540-E3/54 TVS Diode, 1500W, 437V Standoff","metaDescription":"Obsolete Vishay TransZorb® 1.5KE540-E3/54 Zener TVS diode. 1500W peak pulse, 437V reverse standoff, 772V clamp.","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":"1.5KE540","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"486V","Voltage - Clamping (Max) @ Ipp":"772V","Voltage - Reverse Standoff (Typ)":"437V","Current - Peak Pulse (10/1000µs)":"1.94A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE540-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/1.5KE540-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}}