{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE39HE3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE39HE3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39HE3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE39HE3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, TransZorb® Automotive series, TVS Zener diode, 1.5KE39HE3/54, 1500W peak pulse, 56.4V clamp, 31.6V standoff, DO-201AA axial, AEC-Q101.","salesMarkdown":"## Obsolete — what this means for the BOM line The 1.5KE39HE3/54 is marked obsolete per the manufacturer lifecycle record. No official successor or second-source order code is listed by Vishay for this specific AEC-Q101 variant. ## Clamping specs and the protection window The reverse standoff voltage is 31.6 V, meaning it sits across a nominal 24 V or 28 V rail without conducting leakage. Breakdown triggers at 35.1 V minimum, and the clamping voltage at peak pulse current (26.6 A) is 56.4 V maximum — this defines the voltage the downstream circuitry must survive during a surge event. The 56.4 V clamp ceiling is the figure a protection design engineer uses to check the downstream component voltage ratings. If the bus capacitance or parasitic inductance is high, the actual clamp may exceed this at the device terminals — the 10/1000 µs pulse is the standard test condition, not a worst-case real-world transient. ## Automotive grade and temperature envelope This is the qualification level required for under-hood or chassis-mounted electronic modules in production vehicles. The through-hole DO-201AA axial package (also known as DO-27) allows the part to be hand-soldered or wave-soldered into existing PCB layouts without a board respin — useful when replacing a failed unit in a legacy ECU.","metaTitle":"Vishay 1.5KE39HE3/54 TVS, 1500W, 56.4V Clamp, DO-201AA","metaDescription":"Vishay 1.5KE39HE3/54 TransZorb TVS, 1500W peak pulse, 56.4V clamping, AEC-Q101. Obsolete — sourced to order. RFQ for availability.","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":"Tape & Reel (TR)","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","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"35.1V","Voltage - Clamping (Max) @ Ipp":"56.4V","Voltage - Reverse Standoff (Typ)":"31.6V","Current - Peak Pulse (10/1000µs)":"26.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 1.5KE39HE3/54 and get a price?","answer":"Submit an RFQ for a lot-specific offer with date-code traceability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39HE3-54","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/1.5KE39HE3-54 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}}