{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE7.5CAHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE7.5CAHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE7.5CAHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE7.5CAHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive TransZorb® series, bidirectional TVS diode, 1.5KE7.5CAHE3/51, 1500W peak pulse power, 11.3V clamping, DO-201AA axial package.","salesMarkdown":"The 1.5KE7.5CAHE3/51: That 1500 W figure is the device's ability to absorb a single high-energy transient — a load-dump or inductive kick — without failing short. The clamping voltage at that peak current is 11.3 V, and the diode can handle 133 A of peak pulse current. For an automotive 12 V bus, the 6.4 V reverse standoff means it stays out of the circuit during normal operation and only conducts when a transient pushes the line above its breakdown threshold of 7.13 V. The 1500 W rating is a 10/1000 µs waveform figure — a standard industrial surge shape. For shorter pulses (8/20 µs) the peak power capability is higher, but the 10/1000 µs number is the one to use when comparing against other TVS diodes in the same test condition. ## Automotive qualification and temperature envelope The operating junction temperature range spans -55°C to 175°C, covering the full under-hood thermal profile including hot-soak conditions near the engine block. The DO-201AA axial-lead package is a through-hole format rated for the full 1500 W pulse — the lead frame and die attach are sized to handle the thermal shock of repeated transients without fatigue cracking. For high-vibration environments, the axial leads should be formed and seated against the PCB to avoid lead fatigue at the glass seal. ## Sourcing an obsolete automotive TVS Vishay has marked the 1.5KE7.5CAHE3/51 as obsolete. No official successor order code is recorded in the lifecycle entry. The AEC-Q101 qualification and the 1.5KE series footprint mean that a parametric replacement from the same family (same package, same 1500 W rating, same bidirectional configuration) is the practical migration path, but a board-level re-qualification is advised given the automotive safety context.","metaTitle":"1.5KE7.5CAHE3/51 Vishay TVS, 1500W, Bidirectional, DO-201AA","metaDescription":"Obsolete Vishay 1.5KE7.5CAHE3/51 bidirectional TVS diode, 1500W peak pulse, 11.3V clamp, AEC-Q101.","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":"1.5KE7.5","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"7.13V","Voltage - Clamping (Max) @ Ipp":"11.3V","Voltage - Reverse Standoff (Typ)":"6.4V","Current - Peak Pulse (10/1000µs)":"133A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55e3e40e24fd2c3f96443c3e231bf459.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/1.5KE7.5CAHE3-51","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/1.5KE7.5CAHE3-51 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}}