{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE51CA-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE51CA-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE51CA-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE51CA-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, TransZorb® series, TVS Zener diode, 1.5KE51CA-/54, 1500W peak pulse, 43.6V standoff, bidirectional, DO-201AA axial, through hole.","salesMarkdown":"## 1500W peak pulse — clamping at 70.1V The 1.5KE51CA-E3/54: The 43.6 V reverse standoff voltage means the diode draws negligible leakage below that rail level, so it sits across a 36 V or 42 V bus without loading it. Breakdown occurs at 48.5 V minimum, giving a narrow guard band between normal operation and clamping — the rail stays protected without nuisance triggering from transients that stay below the standoff. A single bidirectional channel protects against positive and negative surges, so a single device replaces two unidirectional TVS diodes in back-to-back configuration on AC or bipolar DC lines. The DO-201AA axial-lead package (DO-27 equivalent) is through-hole mounted — the leads handle the thermal pulse of a 1500 W surge without the trace-lift risk of a surface-mount part on a standard FR-4 pad. The TransZorb series is a Vishay standard for general-purpose circuit protection — no power-line protection rating, so it is intended for signal and DC bus clamping, not AC mains.","metaTitle":"1.5KE51CA-E3/54 Vishay TVS, 1500W, 43.6V Standoff","metaDescription":"Vishay 1.5KE51CA-E3/54 TransZorb TVS, 1500W peak pulse, 43.6V standoff, bidirectional, DO-201AA. Active lifecycle, sourced to order. Request a quote.","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","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":"$0.3531","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 1.5KE51CA-/54 bidirectional or unidirectional?","answer":"It is a single bidirectional channel, clamping both positive and negative transients with one device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE51CA-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/1.5KE51CA-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}}