{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE51CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE51CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE51CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE51CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, bidirectional Zener, 1.5kW peak pulse, 70.1V clamping, DO-201AA axial-lead, Bulk package.","salesMarkdown":"## Last-time-buy reality for a 1.5 kW TransZorb® The 1.5KE51CA-E3/51: Vishay has placed the 1.5KE51CA-/51 in Last Buy status — this is the final procurement window before the line closes. ## Clamping voltage, standoff, and breakdown — the three numbers that decide fit The reverse standoff voltage is 43.6 V — this is the DC or peak-AC voltage the protected line can carry without the diode conducting. At 48.5 V minimum breakdown the device starts to avalanche, and clamping is guaranteed at 70.1 V maximum, so a 48 V bus or a 42 V nominal rail with transients up to 70 V is the intended operating envelope. The 1.5 kW rating is derated linearly above 25°C per the datasheet curve. ## Through-hole axial package — board-fit note The 1.5KE suffix on the supplier device package indicates the full 1.5 kW die inside the same body size used across the series. Power line protection is not supported (the diode is intended for signal and DC rail clamping, not AC mains).","metaTitle":"1.5KE51CA-E3/51 TVS Diode, 1.5kW, 70.1V Clamp, DO-201AA","metaDescription":"Last-buy Vishay 1.5KE51CA-E3/51 TransZorb® TVS, 1500W peak pulse, 70.1V clamp, bidirectional, DO-201AA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Last Time Buy","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":"$0.8847","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE51CA-E3-51","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-E3-51 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}}