{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE16-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE16-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE16-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE16-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® Zener TVS, 1.5KE16-/54, 1500W peak pulse power, 12.9V reverse standoff, 23.5V clamping, DO-201AA axial, through hole.","salesMarkdown":"## TransZorb TVS for 12V rail protection The 1.5KE16-E3/54: The Vishay 1.5KE16-/54 is a 1500W (1.5kW) unidirectional TransZorb Zener TVS diode in the DO-201AA axial-lead package, designed to clamp transients on general-purpose DC rails and protect downstream silicon. With a 12.9V reverse standoff voltage, it fits 12V nominal buses — the device remains transparent below the threshold and only conducts during an overvoltage event, shunting up to 63.8A of peak pulse current (10/1000µs waveform) before clamping at 23.5V max. ## Why the 12.9V standoff matters for your rail The 12.9V reverse standoff (Vrwm) is the maximum DC voltage the TVS can sit across without conducting — a 12V rail with 5% tolerance rides at 12.6V, leaving 0.3V of guard band before leakage rises. The breakdown voltage (Vbr) min is 14.4V, so the device stays off during normal operation and fires only when the rail exceeds that threshold. Clamping at 23.5V max under a 63.8A pulse means the protected load sees a peak voltage well below the typical 30V abs-max of a 12V-rated IC, but the 63.8A figure is the peak current the diode itself handles — the source impedance and trace inductance limit actual current in a real board. ## Sourcing an obsolete TransZorb No official successor is recorded from Vishay. The DO-201AA axial footprint is common across the 1.5KE series, so a parametric match (same standoff, clamp, and power class) from the same family is the practical replacement path — confirm the breakdown voltage and package dimensions against the BOM position.","metaTitle":"Vishay 1.5KE16-E3/54 TransZorb TVS, 1.5kW, 12.9V Standoff","metaDescription":"Obsolete Vishay 1.5KE16-E3/54 TransZorb Zener TVS diode, 1500W peak pulse power, 12.9V reverse standoff, DO-201AA axial. Sourced to order; RFQ for availability.","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":"1.5KE16","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"14.4V","Voltage - Clamping (Max) @ Ipp":"23.5V","Voltage - Reverse Standoff (Typ)":"12.9V","Current - Peak Pulse (10/1000µs)":"63.8A"}},"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 closest alternative to the 1.5KE16-/54?","answer":"No official successor is recorded. A parametric match from the same 1.5KE series (same 12.9V standoff, 1500W peak pulse power, DO-201AA axial package) is the practical replacement — verify the breakdown voltage and clamping spec against the BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE16-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/1.5KE16-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}}