{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE27CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE27CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE27CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE27CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, bidirectional, 1500W peak pulse power, 23.1V reverse standoff, 37.5V clamp, DO-201AA axial-lead, bulk.","salesMarkdown":"## Transient protection for 24V rails The 1.5KE27CA-E3/51: The Vishay 1.5KE27CA-/51 is a bidirectional TransZorb® TVS diode designed to clamp transients on nominal 24V DC buses. ## Clamping and breakdown margins This 11.8V window between the standoff and clamp means a 24V rail sees less than a 60% overvoltage during a surge event — within the safe operating area of most downstream DC-DC converters and linear regulators rated for 40V absolute maximum. The single bidirectional channel clamps both polarities symmetrically, so a single device protects against positive and negative transients without needing back-to-back series diodes. ## Temperature range and package The DO-201AA (DO-27) axial-lead package is through-hole mounted, suited for point-of-entry protection on power input lines where board space is not the constraint. ## Last-buy lifecycle — what it means for procurement Vishay has classified the 1.5KE27CA-/51 as Last Buy. This means the manufacturer is winding down production — the part is not yet obsolete, but the final order window is open. Buyers should secure lifetime-buy quantities or identify a replacement before the EOL date closes.","metaTitle":"1.5KE27CA-E3/51 TVS Diode, 1500W, 23.1V Standoff","metaDescription":"Vishay 1.5KE27CA-E3/51 TransZorb® TVS, 1500W peak pulse, 23.1V reverse standoff, 37.5V clamp, DO-201AA. Last-buy status — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Last Time Buy","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","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":"$0.8847","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for 1.5KE27CA-/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/1.5KE27CA-E3-51","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/1.5KE27CA-E3-51 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}}