{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE51A-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE51A-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE51A-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE51A-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® series, Zener TVS diode, 1500W peak pulse power, 43.6V reverse standoff, 70.1V clamp, DO-201AA axial, through hole.","salesMarkdown":"## 1500 W TransZorb — the clamping voltage that decides the rail protection The 1.5KE51A-E3/54: Its 43.6 V reverse standoff sits just below a 48 V nominal rail, so it stays out of conduction during normal operation and only clamps when the line sees a transient above 48.5 V breakdown. The 70.1 V clamp at 21.4 A peak pulse current defines the voltage the downstream circuitry must survive — a 48 V bus with a 75 V absolute-max input stage has margin here, but a 60 V-rated part would be at risk. ## Through-hole axial — the package that survives the surge Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE51A-/54 mounts through-hole. The large body and thick leads carry the thermal pulse of a 1500 W event without lifting the junction above the 175 °C maximum — the same package used across the TransZorb family for consistent surge handling.","metaTitle":"1.5KE51A-E3/54 Vishay TVS, 1500W, 43.6V Standoff","metaDescription":"Vishay 1.5KE51A-E3/54 TransZorb TVS diode, 1500W peak pulse, 43.6V standoff, 70.1V clamp, DO-201AA axial, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE51","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"48.5V","Voltage - Clamping (Max) @ Ipp":"70.1V","Voltage - Reverse Standoff (Typ)":"43.6V","Current - Peak Pulse (10/1000µs)":"21.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3369","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the 1.5KE51A-/54 use?","answer":"It comes in a DO-201AA (DO-27) axial-lead through-hole package, with the supplier device package designation 1.5KE."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE51A-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/1.5KE51A-E3-54 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}