{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE43CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE43CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE43CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Type Zener, 1.5KE43CA-/51, 1500W peak pulse, 36.8V standoff, 59.3V clamp, DO-201AA axial, Through Hole, Bulk.","salesMarkdown":"## 1.5 kW TransZorb clamping profile The 1.5KE43CA-E3/51: The reverse standoff voltage of 36.8 V means it sits across the supply line without conducting during normal operation; the minimum breakdown voltage of 40.9 V is the threshold where avalanche conduction begins. Under a 10/1000 µs surge waveform, the clamp voltage peaks at 59.3 V while shunting up to 25.3 A — that 59.3 V ceiling is what the downstream silicon must survive. The DO-201AA axial-lead package is a through-hole form factor that handles the thermal pulse of a 1.5 kW surge without lifting the die bond. ## Last-buy — sourcing the 1.5KE43CA-E3/51 now Vishay has flagged this part as Last Buy — the manufacturer is winding down production, so the window for factory orders is closing. For BOM lines already qualified to this specific Vishay order code, the practical path is to secure inventory through independent distribution while the part is still available on the surplus market.","metaTitle":"1.5KE43CA-E3/51 Vishay TVS, 1.5kW, 36.8V Standoff","metaDescription":"Vishay 1.5KE43CA-E3/51 TransZorb TVS, 1500W peak pulse, 36.8V standoff, 59.3V clamp, DO-201AA. Last-buy status; sourced to order against RFQ.","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":"1.5KE43","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"40.9V","Voltage - Clamping (Max) @ Ipp":"59.3V","Voltage - Reverse Standoff (Typ)":"36.8V","Current - Peak Pulse (10/1000µs)":"25.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8847","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power rating of the 1.5KE43CA-/51?","answer":"1500 W (1.5 kW) for a 10/1000 µs waveform. The clamping voltage at that surge level is 59.3 V, with a peak pulse current of 25.3 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43CA-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/1.5KE43CA-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}}