{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE100-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE100-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE100-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE100-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor TransZorb® Zener TVS, 1.5KE100-/54, 1500W peak pulse, 81V standoff, 144V clamp, DO-201AA axial, Tape & Reel.","salesMarkdown":"## 1500 W peak pulse — the clamp that defines the guard band The 1.5KE100-E3/54: The 144 V clamping voltage at 10.4 A peak pulse current (10/1000 µs waveform) sets the upper limit the downstream circuitry must survive — anything below that clamp voltage is protected. Breakdown starts at a minimum of 90 V, so a nominal 81 V supply has 9 V of headroom before the diode begins conducting leakage current. That guard band keeps the TVS out of the circuit during normal operation while still catching a transient before it reaches the load. ## Obsolete — sourcing through independent channels Vishay lists the 1.5KE100-/54 as obsolete. The DO-201AA axial package and through-hole mounting mean a board spin is required to adopt a surface-mount alternative. If the design is still in prototype phase, a parametric search on 81 V standoff and 1500 W peak pulse in a through-hole package is the starting point for a replacement qualification. ## Temperature range and package — the deployment envelope The DO-201AA axial body handles the thermal pulse of a 1500 W, 10/1000 µs surge without secondary breakdown — the leaded package conducts heat into the PCB traces and surrounding copper area. No power line protection (the device is unidirectional, single-channel), so it is intended for signal or DC bus clamping, not AC mains. The single unidirectional channel means polarity matters — install with the cathode toward the protected rail.","metaTitle":"1.5KE100-E3/54 Vishay TransZorb TVS, 1.5kW, 81V Standoff","metaDescription":"Vishay 1.5KE100-E3/54 Zener TVS diode, 1500W peak pulse, 81V reverse standoff, DO-201AA axial. Obsolete — sourced to order against an RFQ.","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":"1.5KE100","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"90V","Voltage - Clamping (Max) @ Ipp":"144V","Voltage - Reverse Standoff (Typ)":"81V","Current - Peak Pulse (10/1000µs)":"10.4A"}},"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 1.5KE100-/54 used for?","answer":"It is a 1500 W Zener TVS diode that clamps voltage transients on a 81 V DC rail. The 144 V clamping voltage protects downstream components from surges such as inductive kickback, load dump, or lightning-induced transients in industrial control, telecom, and power supply circuits."},{"question":"How can I order the 1.5KE100-/54 or check availability?","answer":"Submit an RFQ for the quantity needed and the lot traceability requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE100-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/1.5KE100-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}}