{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE510-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE510-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE510-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE510-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor TransZorb® TVS, Type Zener, 1.5KE510-/73, 1500W Peak Pulse, 729V Clamp, 413V Standoff, DO-201AA Axial, Through Hole.","salesMarkdown":"## What the 1.5 kW rating means for your rail The 1.5KE510-E3/73: The 729 V maximum clamping voltage at 2.06 A peak pulse current (10/1000 µs waveform) defines the voltage the downstream circuitry must survive — anything rated below that clamp risks avalanche breakdown during a surge. With a reverse standoff of 413 V and a minimum breakdown of 459 V, this part sits on a 400 V DC bus or a 277 V AC line (rectified). The 175 °C maximum junction temperature gives margin in high-ambient enclosures, though the derating curve at elevated temperatures reduces the effective peak pulse power. ## Obsolete — sourcing through surplus channels Vishay lists the 1.5KE510-/73 as obsolete. No pin-compatible direct replacement from Vishay has been published. The DO-201AA axial-lead package (also known as DO-27) is a standard footprint that many TVS families share, so a parametric substitute from another series may fit the same board hole pattern. However, the clamping voltage and standoff must match the protection requirement — a substitute with a lower clamp may not survive the same transient energy. ## Package and mounting — through-hole axial The DO-201AA axial package is a through-hole form factor, soldered into a PCB or wired into a terminal block. The tape-and-box packaging (/73 suffix) ships the parts in a box with tape spacing suitable for automatic insertion equipment — store the reels dry, as the axial leads are not moisture-sensitive but the box should be kept in a climate-controlled area to avoid oxidation on the solderable surfaces. Single unidirectional channel — the cathode band marks the anode-to-cathode orientation. For bidirectional protection on an AC line, two parts back-to-back or a single bidirectional TVS would be needed.","metaTitle":"1.5KE510-E3/73 Vishay TVS, 1.5kW, 729V Clamp, Obsolete","metaDescription":"Vishay 1.5KE510-E3/73 TransZorb TVS, 1500W peak pulse, 729V clamp, 413V standoff. Obsolete — sourced to order against RFQ through independent channels.","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 & Box (TB)","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":"1.5KE510","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"459V","Voltage - Clamping (Max) @ Ipp":"729V","Voltage - Reverse Standoff (Typ)":"413V","Current - Peak Pulse (10/1000µs)":"2.06A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 1.5KE510-/73 and how do I get a price?","answer":"The 1.5KE510-/73 is obsolete and sourced through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE510-E3-73","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/1.5KE510-E3-73 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}}