{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE22CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE22CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE22CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE22CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Type Zener, Bidirectional, 1.5KE22CA-/51, 1500W Peak Pulse, 30.6V Clamping, DO-201AA/DO-27 Axial, Through Hole.","salesMarkdown":"## Last Buy — what it means for your BOM The 1.5KE22CA-E3/51: Vishay has marked the 1.5KE22CA-/51 as Last Buy — the manufacturer is winding down production. For an existing design, this is the window to secure lifetime-buy inventory or qualify a replacement. ## Clamping performance for an 18.8V rail This bidirectional TVS clamps at 30.6V maximum with a 49A peak pulse current (10/1000µs waveform). The reverse standoff voltage is 18.8V — it sits across a nominal 18V or 24V DC rail and stays out of conduction until a surge pushes the line above 20.9V (minimum breakdown). At that point it shunts the energy to ground, holding the rail below 30.6V. The 1500W peak pulse rating tells you the energy-handling capacity for a single transient; for repetitive events, derate per the pulse derating curve in the datasheet. ## Package and repair-bench fit DO-201AA / DO-27 axial-lead through-hole package — the same footprint as the classic 1.5KE series. On a repair bench, the scorch mark tells you which part died; this package is hand-solderable with standard iron and wick. The -55°C to 175°C operating range covers engine-bay or industrial enclosure temperatures without derating the leakage current.","metaTitle":"1.5KE22CA-E3/51 Vishay TVS, 1500W Bidirectional, DO-27","metaDescription":"Vishay 1.5KE22CA-E3/51 TransZorb TVS, Last Buy status. 1500W peak pulse, 30.6V clamping, bidirectional. 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":"1.5KE22","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"20.9V","Voltage - Clamping (Max) @ Ipp":"30.6V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"49A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7245","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE22CA-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/1.5KE22CA-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}}