{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE43CAHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE43CAHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43CAHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE43CAHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, Automotive AEC-Q101 TransZorb® series, bidirectional TVS diode, 1.5KE43CAHE3/51, 1500W peak pulse power, 36.8V reverse standoff, DO-201AA axial through-hole, bulk.","salesMarkdown":"## Obsolete TVS — what the ratings mean for a replacement search The 1.5KE43CAHE3/51: The 36.8 V standoff means it protects 36 V nominal rails (common in 24 V automotive systems with transients) and starts clamping above 40.9 V breakdown, holding the line to 59.3 V maximum. Housed in a DO-201AA (DO-27) axial leaded package, through-hole mount — the same footprint as the standard 1.5KE series, so a replacement from that family drops in without a board spin. The bulk packaging means it ships loose in a tube or bag, not taped and reeled — fine for hand assembly or low-volume rework, but not pick-and-place friendly. ## Automotive-grade transient protection The -55°C to 175°C operating junction range covers the full automotive temperature envelope, including engine-bay heat soak.","metaTitle":"Vishay 1.5KE43CAHE3/51 TVS, 1500W, 36.8V, DO-201AA","metaDescription":"Vishay 1.5KE43CAHE3/51 bidirectional TVS diode, 1500W peak pulse, 36.8V standoff, AEC-Q101, DO-201AA axial. Obsolete — sourced to order.","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":"Automotive, AEC-Q101, TransZorb®","Package":"Bulk","Applications":"Automotive","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":"1.5KE43","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":"$0.5346","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55e3e40e24fd2c3f96443c3e231bf459.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE43CAHE3%2F51/alternatives.json"},"ai":{"faq":[{"question":"What does the 1500 W peak pulse rating mean in practice?","answer":"The 1500 W rating at 10/1000 µs waveform means it can absorb a transient energy pulse of that peak power without failing — enough to clamp a load-dump or inductive kick on a 36 V automotive bus."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43CAHE3-51","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/1.5KE43CAHE3-51 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}}