{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE39CHE3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE39CHE3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39CHE3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE39CHE3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Automotive AEC-Q101, 1.5KE39CHE3/54, 1500W, 31.6V Standoff, DO-201AA Axial, Through Hole.","salesMarkdown":"## 1500 W peak pulse, 31.6 V standoff — the clamp voltage is 56.4 V at 26.6 A The 1.5KE39CHE3/54: Its 31.6 V reverse standoff voltage protects a 28 V or 32 V nominal rail, clamping at 56.4 V when the 10/1000 µs peak pulse current hits 26.6 A. The breakdown voltage window starts at 35.1 V minimum, so the part triggers before the rail exceeds the downstream device's absolute maximum — this is the margin the design-in engineer budgets against load-dump or inductive kickback. ## AEC-Q101 and the full -55 to 175 °C junction range AEC-Q101 Grade 0 qualification means the 1.5KE39CHE3/54 is screened for -55 to +175 °C junction temperature — the full under-hood automotive band. The 1500 W peak pulse rating is derated above 25 °C per the datasheet curve; at 175 °C the derated capability is roughly 25% of the 25 °C figure. The DO-201AA (DO-27) axial-lead package is a through-hole form factor. The lead spacing and body diameter match the standard 1.5KE footprint — the same PCB land pattern serves the whole 1.5KE family, so a last-minute BOM swap between voltage variants does not require a board spin. ## Obsolete — no official successor on record Vishay lists the 1.5KE39CHE3/54 as obsolete. No direct pin-compatible successor order code is published in the lifecycle record. Sourcing runs through independent distribution; quantities and date codes are confirmed at RFQ. For a new design, a current-production 1.5KE series TVS with the same 31.6 V standoff and DO-201AA package is the functional replacement path — confirm the AEC-Q101 grade and the exact breakdown window against the BOM's protection threshold.","metaTitle":"1.5KE39CHE3/54 Vishay TVS, 1500W, 31.6V Standoff, DO-201AA","metaDescription":"Vishay 1.5KE39CHE3/54 automotive TransZorb TVS, 1500W peak pulse, 31.6V standoff, DO-201AA axial. Obsolete — sourced to order. Request a quote.","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","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 1.5KE39CHE3/54?","answer":"Sourced to order against your BOM quantity through independent distribution. Submit an RFQ for current supply terms."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39CHE3-54","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/1.5KE39CHE3-54 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}}