{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE8.2HE3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE8.2HE3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE8.2HE3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE8.2HE3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5KE8.2HE3/54, Zener TVS, 1500W peak pulse, 12.5V clamp, DO-201AA axial, AEC-Q101 qualified.","salesMarkdown":"## Obsolete — last-time-buy window closed The 1.5KE8.2HE3/54: For a BOM that still calls out this part, the procurement path is a one-time buy against available inventory. No pin-compatible replacement from Vishay is documented, so a board-level change or a parametric substitute search is needed to close the gap. ## 1500W peak pulse — the clamping envelope That 12.5 V is the voltage the downstream circuitry sees during the transient — a 12 V rail with a 13.2 V abs-max input would survive this, but a 5 V rail would need a secondary clamp or a different TVS. The standoff voltage is 6.63 V typical, meaning the TVS draws negligible leakage at the normal bus voltage. Breakdown starts at 7.38 V minimum — the Zener region where the device begins conducting to shunt the surge. The 6.63 V standoff sits well below a 12 V rail, so this part is typically used on lower-voltage automotive buses (e.g., 5 V sensor supplies or CAN bus lines). ## AEC-Q101 — the automotive reliability screen The HE3 suffix in the order code flags AEC-Q101 qualification — the automotive discrete semiconductor stress test suite (temperature cycling, HTRB, H3TRB, ESD). The TransZorb® series is a Vishay trademark for their silicon-avalanche TVS design. The 1.5KE package (DO-201AA axial lead) is a through-hole form factor — the leads are crimped or soldered into a PCB or terminal block. The axial body is rated for the full 1500 W pulse; the lead diameter and solder joint must handle the 120 A surge without fusing.","metaTitle":"1.5KE8.2HE3/54 Vishay TVS, 1500W, 12.5V Clamp, DO-201AA","metaDescription":"Vishay 1.5KE8.2HE3/54 Zener TVS, 1500W peak pulse, 12.5V clamp, AEC-Q101, DO-201AA. Obsolete — sourced to order, availability confirmed at 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":"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":"1.5KE8.2","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"7.38V","Voltage - Clamping (Max) @ Ipp":"12.5V","Voltage - Reverse Standoff (Typ)":"6.63V","Current - Peak Pulse (10/1000µs)":"120A"}},"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 1.5KE8.2HE3/54 and get a price?","answer":"Submit an RFQ with your target quantity and the BOM line reference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE8.2HE3-54","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/1.5KE8.2HE3-54 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}}