{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE39CAHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE39CAHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39CAHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE39CAHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, TransZorb® Automotive AEC-Q101 TVS, 1.5KE39CAHE3/51, 1500W peak pulse, 33.3V standoff, 53.9V clamp, bidirectional, DO-201AA axial.","salesMarkdown":"## 1500 W peak pulse in a bidirectional axial package The 1.5KE39CAHE3/51: It clamps at 53.9 V maximum and handles a peak pulse current of 27.8 A, protecting downstream electronics from transients on 24 V or 28 V rails. ## Bidirectional clamping for symmetrical protection With a single bidirectional channel, this diode protects both polarities from a single device — no need to series two unidirectional parts. The reverse standoff voltage is 33.3 V typical, breakdown starts at 37.1 V minimum, and clamping is guaranteed at 53.9 V maximum. The 1500 W rating at 10/1000 µs means it absorbs high-energy transients like load dump or inductive kickback. For shorter pulses (8/20 µs), the peak power capability is higher, but the datasheet derating curve should be consulted for the exact pulse width. ## Obsolete — sourced through independent channels Vishay has marked the 1.5KE39CAHE3/51 as obsolete. No official successor is listed in the available records. The through-hole DO-201AA (DO-27) axial package is a standard footprint, so a pin-compatible replacement from another manufacturer may exist, but no direct cross-reference is provided here. Verify the electrical parameters (33.3 V standoff, 53.9 V clamp, 1500 W peak pulse) when selecting an alternative.","metaTitle":"Vishay 1.5KE39CAHE3/51 TVS Diode, 1500W, Bidirectional","metaDescription":"Obsolete Vishay 1.5KE39CAHE3/51 TransZorb TVS, 1500W peak pulse, 33.3V standoff, bidirectional, AEC-Q101. Sourced to order against RFQ.","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":"1.5KE39","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"37.1V","Voltage - Clamping (Max) @ Ipp":"53.9V","Voltage - Reverse Standoff (Typ)":"33.3V","Current - Peak Pulse (10/1000µs)":"27.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55e3e40e24fd2c3f96443c3e231bf459.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Vishay provide for 1.5KE39CAHE3/51?","answer":"The part carries AEC-Q101 automotive qualification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39CAHE3-51","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/1.5KE39CAHE3-51 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}}