{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE27AHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE27AHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE27AHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE27AHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, Automotive AEC-Q101 TransZorb® series, 1.5KE27AHE3/51, Zener TVS, 1500W, 23.1V standoff, 37.5V clamp, DO-201AA axial.","salesMarkdown":"## 1.5 kW unidirectional TVS for 24 V automotive rails The 1.5KE27AHE3/51 is a 1500 W peak-pulse-power unidirectional Zener TVS from Vishay's TransZorb® series, qualified to AEC-Q101 for automotive use. Its 23.1 V reverse standoff voltage makes it a natural clamp on 24 V nominal supply rails — the 37.5 V clamping point catches load-dump and inductive-ring transients before they reach downstream silicon. The -55 to 175 °C junction range means it survives under-hood heat soak and cold-crank equally. Housed in the DO-201AA (DO-27) axial-lead package, the 1.5KE27AHE3/51 mounts through-hole. The body diameter and lead spacing are standard for this power class — the same footprint accepts any 1.5KE-series device, so a last-minute swap to a different voltage bin requires no board spin. The bulk packaging (: Bulk) means the parts ship loose in an antistatic tube or bag — no tape-and-reel, so hand-insertion or selective-solder is the expected assembly method. For high-volume wave-solder, verify the lead clinch angle matches your fixture. ## Lifecycle reality — obsolete, not a dead end Vishay lists the 1.5KE27AHE3/51 as obsolete. No official successor order code is published on the record. The 1.5KE series is broad — a functionally equivalent 1.5KE27A (non-automotive grade) or the automotive AEC-Q101 1.5KE27AHE3 in a different packaging suffix may be available; confirm the exact BOM position before substituting. Lot traceability and RoHS compliance documentation are confirmed at quote time. No last-time-buy window remains open — the channel carries whatever surplus inventory exists.","metaTitle":"Vishay 1.5KE27AHE3/51 TVS Diode, 1500W, 23.1V Standoff","metaDescription":"Obsolete Vishay 1.5KE27AHE3/51 1500W unidirectional TVS, 23.1V reverse standoff, 37.5V clamp, 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":"1.5KE27","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"25.7V","Voltage - Clamping (Max) @ Ipp":"37.5V","Voltage - Reverse Standoff (Typ)":"23.1V","Current - Peak Pulse (10/1000µs)":"40A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55e3e40e24fd2c3f96443c3e231bf459.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get pricing and availability for 1.5KE27AHE3/51?","answer":"Submit an RFQ through this listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE27AHE3-51","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/1.5KE27AHE3-51 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}}